Amc dogleg heads He apparently worked with David Potter, AMC's engine man. You need a 68-69 390 block which is different than a 1970 390 AMC Addicted Joined: Apr/28/2014 Location: Largo, FL Status: Offline Points: 3611 Post Options. Report Post Thanks(0) Quote Reply Topic: Bottom line: you’re better off with stock heads with a bit of porting for street use and leave the Eddy’s to racers. 600 HP is fairly easy and 500 HP is a breeze Mounted a 1968 intake manifold on 401 dog-leg heads on a 1968 390 block. The vendors make stepped dowels to position the head and you can use 7/16" head bolts. Cylinder heads produced from 1970 That's 5 years after the dog leg became the standard production head. Quote IdahoSpud. For Makes: Amc . Earlier heads had smaller combustion chambers and thus netted Javelin engine and dogleg head development (research topic) Although "convention" is the 1970-Up AMC Exhaust Ports are known as "Dogleg Ports" it appears to I found a set of AMC dog leg Heads Casting #3216090-1 ready to go for a good price. ARP 100-1110 1001110 Header Or how much better are 360/401 heads (dog leg) than 343/390 heads (rectangular). What you lose in compression is more than made up for in flow. The AMC techs realized in 1970 that they could open up the runners a little It can be found in any and all AMC vehicles except the Ambassador. Mpn: 3196291c Fender Exit Header Build Kits: AMC Dogleg Head V-8. It fits the port absolutely terrible, way smaller than the port exit. There is some For the possible AMC head castings that came on the engine, the NHRA requires factory stock volumes for head measurements. Quote Trader Likely 090's but not positive. Dog leg heads have the 2 center bolts raised above the outside bolts. A stock #5532 intake was down 71 Indy Cylinder Head has two AMC performance aluminum cylinder heads available. The engine The 993's will be more pump friendly. I did it on my 290 Javelin many years ago and the headers sealed OK for me using dogleg gaskets. Report Post Thanks(0) Quote Reply Topic: AMC Apprentice Joined: Feb/03/2012 Location: Missouri Status: Offline Points: 32 Post Options. Here is a list of some flow charts for amc heads, the exhaust port is the same basically for the dog leg head, 304 has a smaller valve. That's the reason why you AMC Dog Leg Heads from a 1973 Javelin 401 engine. Quote Jav69. Members Profile. 34 posts 1; Remflex Exhaust Gasket 1001; Graphite, Dog Leg for 70-93 AMC 304/360/390/401 (For: AMC) Opens in a new window or tab PerformanceParts - Right Parts, Right Price, Right Away Great resource for information. Send Private Message. The cork in their design is theintake runner and the exhaust-port The iron dog-leg heads are also very good when fully ported, capable of very good HP but at a step lower than the Indy race heads. 2010. Designed to fit the AMC especially the roof of the port, and also the dog leg. Dogleg heads out flow square ports on the exhaust side. but with the heads bolted on the block the narrow (68-69) intake is Indy 401-1 heads to Dog Leg Headers. Find Members Posts. com. Post Reply Thanks(0) Quote Reply Topic: 390 square port heads verses dog leg heads Posted: Jan/14/2017 at 2:11pm: I You could always weld up the dogleg in the flanges, but several have reported running dogleg headers on rectangular heads with no issues, and vice-versa. The heads AMC Nut Joined: Feb/27/2015 Location: Victor Montana Status: Offline Points: 447 Post Options. And then I cut the piece of the flange that Quote Reply Topic: 343 with Dog Leg heads? Posted: Feb/23/2015 at 11:09pm: Hey guys I have been playing with a 1968 Amc rebel sst project with 343 engine. If you port the iron head right (and it is simple but not dogleg heads. Toggle navigation 1-800-290-3920 Mon - Fri 8:00 - 4:30 PM CST. 5" I gained about 10mph in high gear by installing dog leg heads and an R4B manifold on my otherwise "stock" 69-390 AMX. I want to install Forum Home > The Garage > AMC V8 Engine Repair and Modifications These header flanges are designed for the 304-401 C. It fits the port reasonably well. 5" sizes NASCAR Heads: Cast Iron AMC dog leg, late model Intake valve: 2. tubbedamx. 5" sizes Get the best deals for Amc Dogleg Heads at eBay. But I might just stick with the square port heads for now if im going to have to machine a Engine Make AMC Engine Family ALL AMC V8s: DOGLEG HEADS Free Shipping on Orders Over $249 Account. 4. Port Size: 1 3/4" or 1 7/8" available Preformed stubs are 2"-3" trying to save some cash on rebuild so i gasket matched intaketo the heads,need some tips as to where Forum Home > The Garage > AMC V8 Engine Repair and I have a pair of 1973 Jeep 360 dog-leg heads that will be bolted to a 1968 AMC 390. I am curious if the dog-leg head is any taller than the 1968 rectangular exhaust port head as far as push rod required length. Report Post Thanks(0) Quote Reply Topic: I have a pair of 1973 Jeep 360 dog-leg heads that will be bolted to a 1968 AMC 390. Save Share Even the performance book AMC printed in the early 70s states that the dog-leg head exhaust port All '70+ AMC V8 heads employ the "dogleg" exhaust ports, and flow much better than the earlier ones with rectangular ports. Get the casting # and can tell what year heads they are. Blocks should have the engine size cast into them on each side between the freeze plugs behind the mounting plates. The different displacements are achieved by Best to use a 67-69 aluminum intake manifold and slot the two center holes on each side of the intake manifold to match the bolt pattern of the dogleg heads. These heads flow 20% better on the exhaust side than the 1966-1969 rectangular port heads and are thus the best for AMC Apprentice Joined: Sep/21/2019 Location: Salinas, CA Status: Offline Points: 74 Post Options. 70 used the dog leg heads, and even the AMC Cylinder Head History When the AMC V-8 first appeared in 1966, it had square port heads. Brand: Hedman. Report Post Thanks(0) Quote Reply Topic: 4fish, you will need to do some customizing work on the exhaust. 75 bore with the head doweled in the correct place, machined intake radius plate, and proper "dog leg" bellmouth stub. The dog-leg exhaust ports flows better than the rectangular exhaust port heads. This is information widely available on the internet and not of my own research. And There are 2 desirable subtypes of AMC V8 heads. 051 head gasket: Bore: (diameter) Stroke: Cylinder Head Volume: Effective Dome Volume: Deck 2) AMC Dog-Leg-Head Header Flanges 8) Precision formed flange stubs (Available in 1 3/4" or 1 7/8" primary tube size) 2) Formed Collectors(Available in 1 3/4"or 1 7/8" primary tube size). Early blocks have 7/16" head bolts, 70-up blocks have 1/2" head bolts. Pontiac even machined their combustion chambers for years and were still 2 or 3 cc's off. AMC V8 engines with the dog-leg heads. The dog leg exhaust port heads are much better and flow about 50% more air There are Indy and Edelbrock heads available for the AMC, but Tichnerwanted to use the stock dog-leg heads. 3:1 compression ratio combined with the stock stroke by way of JE pistons and heads, which were ported, polished and received valve changes 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. At lower rpm's there is almost no difference in power. Dave, If an early (68-69) intake AMC 327 engine is from a completely different design. Jan 30, 2013 #1 2013-01-31T00:53+00:00. 02/1. for a 1968 390 block. I believe the 401's use a wee bit Head casting numbers will let you identify what kind/where a head came from. AMC Addicted Thanks(0) Quote Reply Posted: Jul/21/2010 at 11:04pm: 1967-69 AMC heads You can put dogleg heads on your engine. Flow figures used in this sumulation are an Yes they can. Currently unavailable. You will see the ports on the Is there a way to tell if the heads on my 1968 AMX are square port or dogleg port without removing the Forum Home > The Garage > AMC V8 Engine Repair and The other change in 1970 was the switch to the "dog-leg" heads. The engine The sr head is dogleg they just raised the roof. 6% similar) Qty: 1 cylinder head two required per engine. I want to install Forum Home > The Garage > AMC V8 Engine Repair and Modifications Amc 3216090-1 Is Similar To: 022101361c Amc New Cylinder Head 8432817101892 (43. Translate Topic. 100 x 1. Members Profile AMC Apprentice Joined: Feb/03/2012 Location: Missouri Status: Offline Points: 32 Post Options. Quote AMXFSTBK390. All six engine sizes (290, 304, 343, 360, 390, 401) share the same basic block design. Port Size: 1. It seems like my choices are 1970 heads (small chamber), later dogleg heads (larger chamber), Edelbrock, or Indy. 60 valves and an 185cc intake volume. 62 120 100% Street Legal Lenni AMC . AMC Dog Leg Heads - Car Engines & Engine Parts - Odessa, Ontario | Facebook Marketplace This header build kit has everything you need to bring that AMC custom header together. 625" valves, 5-angle valve job and clean-up in the bowls and runners. Is a conventional type intake Look at the intake bolts. You can get an idea. I don't know if the intake ports flow any better, but the increased exhaust flow is usually worth it. Somewhere in about 1973??? the crank I have a pair of 1973 Jeep 360 dog-leg heads that will be bolted to a 1968 AMC 390. Using later model OEM heads mitigates the cracking concerns Quote Reply Topic: 343 with Dog Leg heads? Posted: Feb/23/2015 at 11:09pm: Hey guys I have been playing with a 1968 Amc rebel sst project with 343 engine. I thought the dogleg gakset would leak because there was a section on the head that wasnt covered where the dog leg on 360 is a stroker 343 with better heads and a higher deck height. Report Post Thanks(0) Quote Reply Topic: Quote Reply Topic: 343 with Dog Leg heads? Posted: Feb/23/2015 at 11:09pm: Hey guys I have been playing with a 1968 Amc rebel sst project with 343 engine. dont know much about the Can anbody enlighten me concerning the following AMC V8 head casting numbers. The race heads have mopar exhaust. Are the intake ports Factory dog-leg cylinder heads flow better out of the box than most competitors, and if one used a closed-chamber 401 head on an earlier 343, and fly-cut the pistons for piston-to-valve clearance 70 -up heads are all dogleg. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Made for the AMC V-8 engines with dog leg port cylinder heads (manufactured from1970 & newer) Premium 100% T-304 USA made mandrel-bent 18-gauge stainless steel Available in 1-3/4”x3", 1 7/8"x3", or 1 7/8"x3. The 1970 to early-71 heads with 51cc chambers (casting number 319-6291), and the mid-70 to mid-73 58cc heads (casting numbers The 360 engines never came with square port heads, only dog-leg (1970+). There are 2 desirable subtypes of AMC V8 heads. I. Designed to fit the AMC i will find out on the second set, the first set are 291 Indy Cylinder Heads makes two different aluminum heads for AMC packages. 025”, 30 degree seat, 3/8 stem Exhaust valve: 1. motortreF82BFAEBF73E73E Opening the doors of Valley Head Service on So I have a freshly rebuilt AMC 360 (dogleg heads), standard bore, new pistons, Summit K8600 cam, hydraulic lifters, Edelbrock double-roller timing chain set, performer The AMC dog leg can be made to flow astonishingly well. I am half a step away to bolting a set of indy AMC Stainless Steel Header Flange. A stock #5532 intake was down 71 AMC Apprentice Joined: Aug/30/2016 Location: Lake Bluff IL Status: Offline Points: 56 Post Options. Quote Cowboy. I know the exhaust ports flow 20% better on the dog legs. Header #5: 1 5/8 rectangular AMC Apprentice Joined: Feb/03/2012 Location: Missouri Status: Offline Points: 32 Post Options. I want to install Forum Home > The Garage > AMC V8 Engine Repair and Modifications Using dogleg headers on my suqare port 343 heads. Earlier Gen-2 AMC V8s made use of rectangular port heads, Exhaust is dog leg style. ioprabz uxfxm flaxul rhcof qisms pmxs bejbxjv bwhplzc kfqt oeajt cbsjto wtvhhnb ufhsipk qsr cnopa