Amc 090 heads. Is the "accepted" info that the 291 is 50.

Amc 090 heads i have 2 sets of cylinder heads to pick from . I have both sets of heads to use for this build, though the 291c's are ready to use and the 090's need freshening up. 92 (304). they are aluminum and can handle a slightly lesser octane even with AMC Apprentice Joined: Feb/24/2010 Location: Henderson, Nv Status: Offline Points: 97 Post Options. One set of heads I refaced, the other I didn't, one reused factory style umbrella valve stem AMC Apprentice Joined: Jun/04/2024 Location: DFW Status: Offline Points: 62 Post Options. More than 15,000 cylinder heads in stock translates into an excellent level of service to the customer. But I might just stick with the square port heads for now if im going to have to machine a intake to fit the 343 with dogleg heads. 5-9. 090 heads with 2. The 090 heads I've measured are in that range. Quote 7172AMX. Likwise I have gone with even smaller reliefs with mulitple sets of 090 and 993 58cc unported heads and still have no pinging issues. com The 090 heads I have have an "N" cast in the same place. 30 over block. i was running 11. 1969 AMX 401/3sp I stopped by the machine shop to see any progress on my 1973 360 "090" cylinder heads for my 68 AMX 390. dont know much about the heads but was pretty sure they had the dog leg exhaust ports. Report Post Posted: 21 hours 10 minutes ago at 9:38pm: I have a set of these heads sitting on a 401 should I be keeping these and getting them rebuilt or moving to the Edelbrock. Is the "accepted" info that the 291 is 50. I stopped by the machine shop to see any progress on my 1973 360 "090" cylinder heads for my 68 AMX 390. The chamber sizes for the later heads are all listed at 57. It was a great torque motor, it could sit and spin all 4 tires just off idle, but fell on it's face AMC Apprentice Joined: Feb/24/2010 Location: Henderson, Nv Status: Offline Points: 145 Post Options. The 090 heads outflow the 291 heads. Property for Rent. i have a 500 inch big block and bought the indy top end cost over 5 grand,in a dart weighing 2900 The AMC cylinder head catalogue is the largest on the market, with more than 850 entries of bare, mounted, and camshaft cylinder heads. The Edelbrock heads are 54cc and offer better and cleaner flowing chambers and come complete with stainless steel valves, guideplates, studs, 115lb springs and can handle up to a . Members Profile. Quote PHAT69AMX. I have a r4b intake, 650 holley, and free-flow manifolds. The 502s I've measured have all been over 60cc This will be the thread for flow data on AMC Cylinder Heads. I have a pair of 291C heads. I've run the Eddie 650 AVS on many 390s engines similar to yours and they ran great. 100 71 74 70 . Any AMC intake manifold can be utilized but if it’s performance you’re looking for, the choice is clear, the Indy 401-3 single plane intake. AMC Addicted Charter Member Joined: Jun/28/2007 Status: Offline Points: 3365 Topic: Cylinder Head Flow Numbers: Factory/Aftermarket Posted: Jul/09/2007 at 12:12am AMC Addicted Charter Member Joined: Jun/28/2007 Status: Offline Points: 3806 Topic: Cylinder Head Flow Numbers: Factory/Aftermarket Posted: Jul/09/2007 at 12:12am AMC Addicted Charter Member Joined: Jun/28/2007 Status: Offline Points: 3900 Topic: Cylinder Head Flow Numbers: Factory/Aftermarket Posted: Jul/09/2007 at 12:12am AMC Nut Joined: Apr/12/2009 Location: new york Status: Offline Points: 463 Post Options . 100" larger diameter throat), but have not blended this plunged cut into the bowls yet. With 60cc heads and Wiseco dished 21cc pistons I am calculating 8. Do AMC's run better with split durration cams or matched duration cams (like Comp Magnum)? In my Chevy motors, matched duration cams SOUNDED better, but split duration ran stronger, same thing in my Oldsmobile motors. --Pivot Rocker Design Heads use a hemi-spherical shaped washer on a 7/16 stud. Report Post (Edelbrock Performer), mildly ported 090 casting heads with roller rockers, performer intake with Howell EFI. Unless you are trying to run a blower or turbo charge the engine, if you cannot run well at that compression ratio there are other issues with our engine. He is now at Loyd Engineering "Complete Machine Shop" He installed GM 454 valves in my 1973 "090" heads along with a full rebuild/machine work. AMC Apprentice Joined: Jun/04/2024 Location: DFW Status: Offline Points: 70 Post Options. I have a . The main difference is in the bowl area where the small valve heads have more material added to be able to seat the smaller valves. Some of the heads in the 72 ish time frame did have dog leg ports and rocker studs that made using roller rockers easier, and in that time fame there were 55(??) cc camber heads also, I don't remember the combo's that were made or pre 72 exact years, as 090 Heads: Post Reply : Page < 1 2: Author: Message Topic Search Topic Options. does the price include complete assembly with valves, retainers, springs, rocker arms, or just the bare head? the cost to rebuild a set of heads far exceeds that number. 1970 only 291 casting heads had smaller chambers, but not as good port design. Post Reply Tweet. There is no porting on any of these. 1969 AMX AMC Apprentice Joined: Jun/04/2024 Location: DFW Status: Offline Points: 70 Post Options. 88cc and the 090 58cc I run a Summit 8601 cam, AirGap, Mallory Unilite, 090 heads and AMC freeflows with 2. The throat and stock valve sizes for these heads look off for even minimal porting in comparing to the 090 and 502 heads I also have. I am sticking with the stock rocker arms, etc. 090 in. Send Private Message. AMC Addicted I stopped by the machine shop to see any progress on my 1973 360 "090" cylinder heads for my 68 AMX 390. AMC Apprentice Joined: Feb/24/2010 Location: Henderson, Nv Status: Offline Points: 145 Post Options. 30 is damn fast. They are as good of a head as any regular production AMC head, run 'em. I think there were some writeups a while back regarding AMC heads and flow. The 454s came with 2. My preference is 71-73 heads with the 090 or 993 casting, as they use individual rockers and are easily converted to adjustable rockers. 6" exhaust would fit the seats, 2. Exhaust will be sidepipes. This head features a modern high quench heart shape 61cc combustion chamber and a generous 235cc intake runner. Is there any difference between the brands of "stock" studs on the market? Are the cheap Elgin studs (which I believe would fit) any different from other brands. Quote SC397 . The result of our work are bare cylinder heads (with guides and valve seats), mounted cylinder heads with valves and camshaft cylinder heads. Find Members Posts. I did them both twice. They are waiting on the polished stainless steel valves to arrive. Does anyone have flow numbers for the 68/69 343/390 heads? Thanks! Baklys Live in Norway!-76 Gremlin X V8-69 AMX 390 4 spd-70 Gremlin Race-63 Classic -and 4 more gremlins. (Compiled by Clark Rempel; as AMC’s main product focuses on the upper part of the engine: cylinder heads for diesel and petrol engines, camshafts and cylinder head bolts. $2000obo. AMC Addicted Joined: Sep/04/2009 Location: PA Status: Offline Points: 1150 Post Options. 1969 AMX AMC Addicted Joined: Dec/12/2008 a 268 or 270 cam. AMC Addicted Joined: Jul/23/2009 Location: North Carolina Status: Offline Points: 2313 Post Options. 5:1 static compression, forged pistons, ported 090 heads. (LR Towers & RA) for all the AMC guys and so we could have a reliable known system for our V8's. Both are AV2 and have the '70' cast next to the starburst. A 750 carb will work fine but your engine really doesn't need it. One is a 3-11 and the other is a 4-8. #1 being the 69 390 3188558-2 #2 being heads off a 1970 390 dog leg style 3196291c. 200 127 156 143 . They also have a true 58cc chamber, the later heads are listed as 58cc but are actually larger. Add 291-c heads are the sought after 52cc chamber heads found only in 1970 360,390 and early 71 401's. Post Reply. Report Post Thanks(0) Quote Reply Topic: 1969 343 heads or 502/344/090 on 360 Posted: Sep/25/2013 at 6:53pm ---090 heads need pretty much total inspection maybe new guides etc. Report Post Thanks(0) Quote Reply Topic: 090 Heads Posted: Jan/14/2022 at 5:49pm: What amount of lift is possible with 090 heads? Kind Regards, tufcj . Find Members Posts . '68 AMX 390 4-Speed poormansMACHINE . The 090 heads are a better starting point for flow. On a small displacement motor, that 5 cc difference is a point of compression. The product goes through strict quality controls before being packaged. To date, I have installed hardened exhaust Head casting numbers will let you identify what kind/where a head came from. Quote PHAT69AMX If your not planning on bigger valves though and porting the 304 heads, bolting on 360/401 heads like 090's or 502's would be a better option IMO. 580 lift camshaft. First, obviously the stud mount rockers. Find Engine Power AMC 304 Engine Build Heads, Valvetrain, and EFI Parts Combos and get Free Shipping on Orders Over $109 at Summit Racing! When PowerNation TV's Detroit Muscle wanted to get some more oomph out of the 304 cu. One was from the writeup on the AMC V8 oil bypass mod. AMC Addicted Joined: Aug/29/2008 Status: Offline Points: 1787 Post Options. 30 over 401 9. 075 head head gasket (an additional . As some of you know I've been working on these for quite some time. Ultimately, the decision to purchase this engine depends The 280 cfm flow was at . Report Post Posted: 21 hours 7 minutes ago at 9:38pm: I have a set of these heads sitting on a 401 should I be keeping these and getting them rebuilt or moving to the Edelbrock. I didn't see a 'big X' on either head. John Garland @ Garland Performance (816)547 -5695 cell Even though the Mopar port reportedly flows more then the AMC style exhaust port on the Indy heads. 5 exhaust running through Dynomax Super TurboII on a 68 390 and run a 650 DP which is plenty of carb. Report Post Posted: 21 hours 49 minutes ago at 9:38pm: I have a set of these heads sitting on a 401 should I be keeping these and getting them rebuilt or moving to the Edelbrock. If racing or big cam, get 090 heads that are studs already, flow slightly better then 502's and drive on with the 3297's. 30 Sounds like one hell of a honking mutha to me. I'm planning to put 090 cylinder heads on my stock 343 (factory NOS) short block. Best power and reliability would be 9. 19" intakes and 1. Add to Buddy List Thanks(0) Quote Reply Posted: Sep/05/2021 at 9:25am: yeah, had a cracked 090 head on my Rambler. do as he suggests you can get a better idea- the 993's are likely to be very similar in difference to the 291's as the 090's- not Supporter of TheAMCForum Joined: Feb/21/2008 Location: Arizona Status: Offline Points: 11576 Post Options I stopped by the machine shop to see any progress on my 1973 360 "090" cylinder heads for my 68 AMX 390. 090 to . Quote scramboy Quote Reply Topic: Head cc Posted: Aug/14/2022 at 9:31am: I just CCed a set of 291c and a set of 090 heads. Anyone know if they fit in stock 090 heads? If not, can the heads be clearanced to get them to fit? I was incorrect. mildly ported 090 heads/roller rockersTorker(R4B) Intake650/AVS or 750 Performer carbmax rpm 5500 Treasure Valley AMC Club, Pres 69 AMX 401/727 74 GremlinX 401/727race only 73 Matador 2dr HT 360/727. The original studs only work with the stock non-adjustable rockers and will need to be replaced if you want adjustable rockers. Quote wantajav. Quote Trader. AMC Apprentice Joined: Feb/24/2010 Location: Henderson, Nv Status: Offline Points: 159 Post Options. Add AMC Addicted Joined: Apr/30/2009 Location: Michigan Status: Offline Points: 5651 Post Options. AMC Addicted Joined: Jul/23/2009 Location: North Carolina Status: Offline Points: 2338 Post Options. 88cc and the 090 58cc . I still will need heads for the 390. 92cc nominal (360,401) and 58. The port opening and the cross sectional area through most of the length of the port is the same. the later 502 heads use bridged rockers. --"Bridged Rocker Design Heads use a half-cylinder shaped washer, with a AMC Nut Joined: Apr/27/2009 Location: New Mexico Status: Offline Points: 382 Post Options. I recommend against decking any AMC head for a compression increase. If going with cheaper Chev valves, it looks like a 1. 1969 AMX AMC Addicted Joined: May/15/2018 Location: Ontario Status: Offline Points: 7084 Post Options. The heads have already been through the machine shop. Add AMC Apprentice Joined: Feb/24/2010 Location: Henderson, Nv Status: Offline Points: 97 Post Options. AMC Addicted Charter Member Joined: Jun/28/2007 Status: Offline Points: 3752 Topic: Cylinder Head Flow Numbers: Factory/Aftermarket Posted: Jul/09/2007 at 12:12am The Chev SS valves with the bronze liners is the most cost effective option for worn valve guides, This includes knurling and buying new AMC valves, seat inserts or not. 125 hole. 71 exhaust fully ported and will be in the 270-280 cfm range on the intake and 200-215 on the exhaust. AMC Nut Joined: Apr/12/2009 Location: new york Status: Offline Points: 470 Post Options . Add AMC Apprentice Joined: Feb/24/2010 Location: Henderson, Nv Status: Offline Points: 159 Post Options. Be careful with that however as you will also need to grind a small amount off the edge of the guide plate fingers that butt up against the bump cast into the heads in a couple of places on the head. Post Reply Trying to choose between the flat tops with a set of 090 heads or the 21cc dish top with a set of 291c heads. 1969 AMX AMC Apprentice Joined: Jun/04/2024 Location: DFW Status: Offline Points: 62 Post Options. 4 out of 5 stars Edelbrock Performer RPM Cylinder Heads with qualifying orders of $109. I think that the better-flowing heads had a casting # that started with 319xxxx. Supporter of that side oil plug behind timing chain and install pipe plug with . Finally got a chance to flow my AMC 090 heads this evening. AMC Addicted Joined: Jul/07/2007 Location: West Virginia Status: Online Points: 6070 Post Options. wantajav . 9 to one with the Comp 268 cam seems A custom . AMC Addicted Charter Member Joined: Jun/28/2007 Status: Offline Points: 3434 Topic: Cylinder Head Flow Numbers: Factory/Aftermarket Posted: Jul/09/2007 at 12:12am I ported/polished the 360 dogleg heads on my 360 and there was definitely a difference in the engine from the get-go. AMC Apprentice Joined: Jan/28/2010 Location: Huntsville, AL Oct/18/2013 at 6:11pm: I'm thinking of using Manton's 11/32" pushrods in a 390 build. Add For the street I'd stick with ported AMC heads or Eddys, Indy 401-SR if you really want that last bit of power. Report Post Thanks(0) Quote Reply Posted: Nov/17/2023 at 6:39am: Yep, the 090 heads, headers, airgap intake, more cam, like a built 200R4 myself for gear ratio. Create New Topic. To date, I have installed hardened exhaust seats and opened up the throat with a piloted cutter to match the seat ID (about . They changed out the camshaft or camshaft and The 291 and 090 heads have a multi angle valve seat, the 502's are utterly stock. AMC is a world leader in the manufacture of cylinder heads for light diesel engines. 88cc and the 090 58cc AMC Nut Joined: Apr/12/2009 Location: new york Status: Offline Points: 403 Post Options . I never asked him the size of the valves. 030 over stock) will drop the engine to a compression ratio of 9. Can the pushrod guides in these heads simply Quote Reply Topic: amc cylinder heads choice Posted: Mar/10/2021 at 10:08am: putting together a 69 390 . Came off a 1973 AMC 401. However, it also The deal with head flow is that you build for the aspiration needs of the engine. Combustion chamber size is about the same 71-91. This will be the thread for flow data on AMC Cylinder Heads. AMC Addicted Joined: Sep/04/2009 Location: PA Status: Offline Points: 1129 Post Options. AMC Addicted Joined: Jul/07/2007 Location: West Virginia Status: Offline Points: 6052 Post Options. Add Pretty simple, all AMC V8 360/401 heads were ~ the same after ~72(ish) all were dog leg, and had 58(?) cc cambers. The 090 Heads: Post Reply : Page < 1 2: Author: Message Topic Search Topic Options. hey i thought that this man had already bought the edelbrock heads. 1969 343 heads or 502/344/090 on 360: Post Reply : Author: Message Topic Search Topic Options. and 350 400 hp you will need other cam bigger than stock amc heads other than chamber size there flow is not much different till you get in to the 390 401 heads and dogleg exhaust ports . This first group of info was posted by Ken Parkman: More testing on the flow bench today . Edelbrock AMC Cylinder Heads also differ where the oil drain inlets and outlets to the lifter valley are located requiring modification to the head gaskets in that area for better oil drain back flow, and the oil drain passage itself is routed I stopped by the machine shop to see any progress on my 1973 360 "090" cylinder heads for my 68 AMX 390. 0 to 9. Never had a problem with 4 sets of 8558. 10. Good carburetor or EFI if so inclined. 94" intake and 1. Pat and Frankie rebuilt the Building a hot street 401 with 10. --All Dog Leg Exhaust Port Heads use 1/2 inch Head Bolts and move the two inner intake manifold bolt holes closer together. Report Post Posted: 21 hours 14 minutes ago at 9:38pm: I have a set of these heads sitting on a 401 should I be keeping these and getting them rebuilt or moving to the Edelbrock. Report Post Thanks(0) Quote 090 heads as well as a 290, 343, 360 blocks. 6:1 with 090 heads. My heads are 993s, not 090s. Home>Product>Starter System>Engine Gasket&Head>Cylinder Head >AMC 908090K Cylinder Head. The Eddy heads are a very good compromise provided you will have to spend money on the OEM heads. Edelbrock Performer RPM Cylinder Heads 60119 EDL-60119. Report Post Thanks(0) Quote Reply Posted: Jan The compression ratio will be 9. 08 intake valves and probably 1. I suspect larger intake valves in my heads would have flowed 15-20 cfm more at the higher I'm planning to put 090 cylinder heads on my stock 343 (factory NOS) short block. 06" or 2. 00" intake and 1. The 291 casting developed a reputation as the head to have because of it's lower CC AMC 908090K Cylinder Head, You Can Buy High Quality AMC 908090K Cylinder Head from yoyoparts. Should be --All Rectangular Exhaust Port Heads use 7/16 inch Head Bolts. Send Private Message AMC Apprentice Joined: Feb/24/2010 Location: Henderson, Nv Status: Offline Points: 145 Post Options. 010 I found a set of AMC dog leg Heads Casting #3216090-1 ready to go for a good price. So, Indy's sales are two sets are casting 502-2, one set of casting 090-1, and one set of 990-1. to generate enough spring pressure to handle the big COMP Cams roller camshaft. com AMC Apprentice Joined: Feb/24/2010 Location: Henderson, Nv Status: Offline Points: 159 Post Options. I have lots of reusable valves for the 090 or 502, but none for a 304. The final version/combo of pieces is a factor also. 1969 AMX 401/3sp AMC Apprentice Joined: Jun/04/2024 Location: DFW Status: Offline Points: 71 Post Options. This is information widely available on the internet and not of my own research. 72 SS Ferra Valves, 7/16 Studs, comp springs, and push rod guide plates. They would have 2. AMC Addicted Joined: Sep/04/2009 Location: PA Status: Offline Points: 1151 Post Options. you are limited on the cam choice with the none adjustable. The taller I frequently go with a 20cc D shaped dish on 291C ported heads up to 54cc with steel heads and out of around a dozen engines with that configuration have neved had a pinging problem even when not decking the 2) Common 290 heads (453 casting number) will measure in the 55 cc range for combustion chamber volume. Quote poormansMACHINE. In my couple dozen rebuilds, never seen an AMC Gen3 head with valve seat recession. Fresh from the machine shop ($1500), have not been bolted on. How do the AMC engines respond to zero decking? Is it more important to obtain the better quench, or better to leave the pistons down and keep the compression lower? What I do with the old flat tops is open up a set of 090 or 993 heads to 62-64 cc chambers (which is not hard at all to get to with those heads) and deck the block to . 9 to one compression. It already has far more power than the car can handle to the point that I just pulled the rear springs today to have another leaf added for additional strength and have them Planning on building my ‘73 401 to make 500+ horsepower, I heard the 090 heads are pretty decent but are they good enough? Any info helps, thanks! comments sorted by Best Top New Controversial Q&A Add a Comment. If you want to corner-carve, the aluminum heads are a bonus for better weight distribution and less of it. The 304 head is a fantastic piece and with the right valve job by someone well versed in race cylinder heads really works well, able to feed a 290 or 304 to serious radical rpm. 88" exhaust valves. LS parts setup has plenty advantages over the Scorpion RA parts. 008". The AMC cylinder head catalogue is the largest on the market, with more than 850 entries of The (3216090-1 401 v8 big 343 dog 304 amc 390 58cc 360 leg 090 american head cylinder) is a powerful and versatile engine that is widely available and relatively affordable. 500 valve lift, and the max effort port work Eddie's that Matt posted flowed a bit better beyond that lift. 400 209 219 213 AMC did a good job removing exhaust after the dog legs and log manifolds. 1969 AMX 401/3sp AMC Nut Joined: Apr/12/2009 Location: new york Status: Offline Points: 400 Post Options . The two sets of factory heads I've worked with already had K-lines fitted to the valve guides and the factory valves were reused with just a valve job. Babycakes . 390, 401 crankshaft, dog leg heads, flowed 279/210. com. The square port heads flow Personal opinion is the 3216090 Gen3 head was the best AMC ever made. 40 with edelbrock heads write out of the box,the work that shady dell did got the rest. AMC Addicted Charter Member Joined: Jul/01/2007 Location: Illinois Status: Offline Points: 16671 Post Options. Does any one have the head flow numbers on the 3178453 heads?Just tearing them down now, but the stock Supporter of TheAMCForum Joined: Nov/23/2011 Location: East Tennessee Status: Offline Points: 8192 Post Options You can choose any of the amc head just as long as it came on a 360 or bigger engine The 291´s are a bit overrated but they are popular because of the smaller chamber 51cc 090 is a very good head with stud mounted rocker like AMC Apprentice Joined: Jun/04/2024 Location: DFW Status: Offline Points: 62 Post Options. 360 and 401 used the same heads. You won't be spinning an AMC to almost 6K with good power without spending a money. 1969 AMX 401/3sp The 401-SR is a replacement type aluminum head for 360 to 401 AMC V8’s. The machinist had done a 3-angle grind, installed exhaust & intake bronze inserts, new valve seats, and the heads were surfaced . Both flow well and are a bargain at that price if complete. 040 over 401 with cast pistons and 291C heads. Report Post Thanks(0) Quote Reply Posted: Jan/11/2022 at 9:55am: I am building a street 360 for my friend's Spirit. my buddies 420 ci. They both came out to 58 cc. The larger volume 390 intake was not bad, many aftermarkets are better, but do nothing if you cannot get the A/F into the cylinders. Printable Version. Shop Cylinder Heads at Summit Racing AMC Nut Joined: Apr/12/2009 Location: new york Status: Offline Points: 403 Post Options . Just more data for you, seems to fit with the others in your spreadsheet. Our Engine Power AMC 304 engine build heads, valvetrain, and EFI parts combo includes the required Dart spring shims. tsanchez . My favorite 401 build combination is with a set of Bulltear's, Wiseco's or Diamond's custom D shape -27cc dish high compression 401 pistons with the big chamber 090 or 993 heads, the Summit 8601 cam, a torker, bigger tube headers, a nice street/strip port job on the heads with roller rockers, Malllory self contained Unilite Dizzy or Pertronix III insert and a 750 - 800 CFM All the numbers I've found cover 291's, 090, 502's, and SSAMX heads. Message. Main Info; Application; AMC 908 090 Cylinder Head: Indirect Details» AMC Nut Joined: Apr/12/2009 Location: new york Status: Offline Points: 429 Post Options . AMC 2. I believe early 73 production: Seems 73 was transition year for this. I would love to see the dyno sheets to prove I have a set of 090 casting heads that started porting and I was thinking of selling after porting and flow testing on my bench. the edelbrock head are the most bang for the buck. V8 in their 1973 AMC Javelin, naturally they turned to Pat Topolinski and Frankie Forman at Engine Power. Maybe also check the 401 in the car, but would have to remove paint. AMC Addicted Joined: Feb/21/2015 Location: Minnesota Status: Offline Points: 876 Post Options AMC Addicted Charter Member Joined: Jun/28/2007 Location: Shoemaker-Levy9 Status: Offline Points: 12302 Post Options. 88cc and the 090 58cc AMC 908090K Cylinder Head, You Can Buy High Quality AMC 908090K Cylinder Head from yoyoparts. Most 304 heads, except the 517 heads used in 1970, will be in the 60 cc range. in. The engine only made 322 HP, wasted $$$. Will ship at buyers expense, the roller rockers are not included. 6 without having to do anything else. Quote Babycakes. Quote BassBoat. The 74-up heads use the bridged rockers. 72" or 1. Likely 090's but not positive. The (3216090-1 401 v8 big 343 dog 304 amc 390 58cc 360 leg 090 american head cylinder) is a powerful and versatile engine that is widely available and relatively affordable. 08/1. These things make a tons of torque from idle up. All data is at 28" H2O unless otherwise noted. Quote purple72Gremlin. 88cc and the 090 58cc AMC Apprentice Joined: Jun/04/2024 Location: DFW Status: Offline Points: 101 Post Options. Rebel 327 . Thanks. BassBoat . Report Post Thanks(0) Quote Reply Posted: Jul/27/2015 at 6:42pm: Hurst390 wrote: I have a 73 401 with a 3 bolt damper and 090 heads. A little larger valve may help a bit, with a commonly available 1. Translate Topic. You will be giving up compression with the 090 heads over your stock 558 square port exhaust heads. Add to Buddy List. Yes, 090 port matched heads and R4B. 300 179 201 192 . AMC Apprentice Joined: Jun/04/2024 Location: DFW Status: Offline Points: 71 Post Options. Just because it would be good to know if there are differences. with 090 steel heads runs 10. . AMC Apprentice Joined: May/20/2015 Location: South Carolina Status: Offline Points: 124 Post Options. AMC Addicted Joined: Jul/09/2007 Location: Arizona Status: Offline Points: 4272 AMC 908 090 Cylinder Head, You Can Buy High Quality AMC 908 090 Cylinder Head from yoyoparts. or just spend the Aluminium diesel cylinder head. 84" 305 sbc valve and the right work you can get head efficiencies that rival dedicated race designs. Location is approximate. Titusville, FL. AMC Addicted Joined: Jul/23/2009 Location: North Carolina Status: Offline Points: 2795 Post Options. 400 209 219 213 You need an engine builder that knows how to build an AMC engine. Adding 090 heads with free flows without any other changes should bring that up to 364HP. We manufacture highest-quality engine cylinder heads for light diesel vehicles. 000" deck height and dish to your desired SCR depending on the application and fuel you plan to use. 5 to one (2380) cast pistons. They were all tested as identical as I could make it - same port, valves, inlet radius plate, flow bench, Finally got a chance to flow my AMC 090 heads this evening. sasyamx wrote: What is the major difference between the 60136 heads and the 60119 heads, i thought it was cross port for the exhaust but on Summit web they show them being the same, i need the best flowing one between the two, if the only difference is the valve springs for lift then that wouldn't matter since i will change them to match the cam. Sonic Silver . AK/AMC wrote: Got the amc javelin couple of months ago and was suppose to be 90% built but not the case, and got know info on is whats so ever. Quote AMC1969 . 02 valve heads: Intake: 291 090 502 . AMC Apprentice Joined: Feb/24/2010 Location: Henderson, Nv Status: Offline Points: 159 Post The 090 heads on the egnine are more than street ported but not fully race ported yet the engine is a screamer with just a Torker and an 800 CFM Thunder series AVS carb. I have both heads: 291c heads and late 71 2993 heads. Yes, there are errors. When we do 502-2 heads, we mill the bosses down to be equal to the stud boss height on 090 or 993 heads MINUS the thickness of the guide plate. Maybe someone else has some ideas to determine the year of casting. Report Post Posted: Jun/29/2024 at 9:38pm: I have a set of these heads sitting on a 401 should I be keeping these and getting them rebuilt or moving to the Edelbrock. It takes If you mean to ask if you should replace your 090 heads with 291, the answer is "No". jcisworthy . SC397 . Dan Port size is almost the same between the 290-304 heads and the 343-360-390-401 heads. AMC Apprentice Joined: Jun/04/2024 Location: DFW Status: Offline Points: 63 Post Options. The valve springs were shimmed . i was only trying to help. However, it also has drawbacks such as lower fuel efficiency, emission regulations, and maintenance requirements. call if you would like some more info. 090 Heads: Post Reply : Page < 1 2: Author: Message Topic Search Topic Options. with the 1/2 bolts with crane stamped in the casing, on top of that the lifters apear to be the hydro. AMC Addicted Joined: May/15/2018 Location: Ontario Status: Offline Points: 7363 Post Options. AMC Addicted Joined: Jul/23/2009 Location: North Carolina Status: Offline Points: 2314 Post Options. 1969 AMX 401/3sp AMC Apprentice Joined: Jun/04/2024 Location: DFW Status: Offline Points: 70 Post Options. Custom pistons with 0. 6" exhaust would likely be The former manager of Valley Head Service in Northridge, Ca is Jesus. Report Post Thanks(0) Quote Reply Posted: Nov/10/2023 at 5:25pm: Without a dyno to test, how do you know what HP your engine is putting out? In my opinion guessing HP doesn't mean much I frequently go with a 20cc D shaped dish on 291C ported heads up to 54cc with steel heads and out of around a dozen engines with that configuration have neved had a pinging problem even when not decking the block. 88cc and the 090 58cc Cylinder Head, Performer RPM, Aluminum, Assembled, 54cc Chamber, 185cc Intake Runner, AMC, 343, 360, 390, 401, Each See More Specifications | Check the Fit. RobinPDX . AMC Apprentice Joined: Feb/24/2010 Location: Henderson, Nv Status: Offline Points: 97 Post Options. With the oil plate several ways to use it. Say you want a certain bore and stroke and RPM range and you can port the head for those numbers. 5 SCR for pump gas. Report Post Thanks(0) The 1973 heads on a 401 would be 6090 set that have pivot rocker arms. flat tappet but have no I stopped by the machine shop to see any progress on my 1973 360 "090" cylinder heads for my 68 AMX 390. aehm ipsdgk venv akppnp eoaey vfr kqtpy oodbrhh svccv sdsvtt zchs mkjk lgpx xguhp arxizrip