If you want to use a 1972 or later style flexplate / flywheel a concentric adapter will be required. AMC 304 Rebuild, Complete AMC 304 motor and engines V8, 304 Crate Engine, AMC 304 Heads suitable for AMC Rebel FORD 302 & 347 STROKER ENGINES, FORD WINDSOR 351W, & 408 & 427 STROKER ENGINES and FORD 351C ENGINES: CLICK HERE Catalog ID#Ford-10 . Kit includes superchargers, hoses, tubes, BOVs, air filters, carb hat, and all necessary brackets, pulleys and hardware for a complete installation. | Compression is 9.5-1 with a 58cc head chamber, 4032 forged aluminum with ArmorGlide skirt coating. The Crown cover still has the distributor fitment issues, which requires some massaging of the cover to get a distributor to fully seat properly and mesh with the cam gear. Clegg Engine has been in the engine rebuild and parts business for over 48 years. The 304 was dropped by the end of 1981—likely due to the fact that AMC's six-cylinder was making more horsepower than it, and its emissions were no better than the 360's. He gave me feedback on where to place the groove on the AMC heads, since we have the angled spark plugs. It was rated at 130.5 hp in 1979. These crankshaft are machined from a solid 9" billet round of 4340 material. Grooves are angled towards the exhaust valve side of the spark plug. Clegg Engine has been in the engine rebuild and parts business for over 48 years. We also have matching 4340 Billet H beam rods to work with these 360 AMC pistons. 342‚Äù STROKER (304 block & 390 crank) Offset grind the 390 crank for a 2.10‚Äù Chevy rod journal, which allows a 3.782‚Äù stroke AMC V8 Stroker Combinations (using 304 and 360 blocks) Help Rear Flange 6 Bolt AMC 1971 and earlier style. He does a top-rate job on building the motors, doing waaaayyy more than most shops do, to get a quality build. Some of the components shown above may look different from what will be included with your kit. It was rated at 130.5 hp in 1979. Your donations help keep this valuable resource free and growing. Stainless steel intake/exhaust washer/pinch bolt kit including: (8)Winged washers, (3)Round washers and (11) 12pt ARP bolts. Crankshaft kits for your AMC. I’m also ordering a brand new 2.0” bore Fish carb. It was an optional engine in 1971-1981 Jeep CJ-5 … Engine rebuild kits for your AMC. Limited Lifetime Warranty. It will set you back in the seat and still has good all around power. Oversize symmetrical radiused valve pockets allow use of high lift cams and big valves. Clegg Engine has been in the engine rebuild and parts business for over 48 years. All Kits are set up for hot air. | wrist pin size of .930 in. You can read up on it at the following links. Thanks. Early 304s performed well, so well that frame changes were made to the CJs in '73 to prevent cracks. CARBURETOR:  Brand new 2.0” bore Fish Carburetor (new limited production run) ...  ... very unique & rare carb ... out-performs any other carb in power and MPGs, and can switch between multiple fuels with only minutes of adjustment. Later models produced less power from the factory, going down yearly. They work with either a floating piston pin or pressed pin type connecting rod. The more you stroke the less you can increase the fillet radius. gears will appreciate the better fitment of OEM. He gave me feedback on where to place the groove on the AMC heads, since we have the angled spark plugs. They work with either a floating piston pin or pressed pin type connecting rod. Yes, the Fish carburetor is a very strange beast … goes against a lot of conventional carburetor ideas. I opted to order new ARP head BOLTS from Summit Racing. Don't be fooled by it being a one-barrel. 3.0” single exhaust. Set includes 8 pistons, 8 piston pins, pin lock rings and premium piston rings. It was an … Stock 390 crankshaft stroke … | Compression is 9.5-1 with a 56cc head chamber, 4032 forged aluminum with ArmorGlide skirt coating. Has Been A Continuous Presence In Racing Engines For Over 30 Years. All content of this site Copyright © 2018 TheAMCForum unless otherwise noted, all rights reserved. ... Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 300/304, Lift .497/.520, AMC, 290-401, Kit. . Oversize symmetrical radiused valve pockets allow use of high lift cams and big valves. AMERICAN MOTORS 5.0L/304 AMC V8 Camshaft Kits. A bung is included for water meth injection. He has a break-in stand at his shop. Wiseco PTS538A45. Fast shipping. Finally staring a thread for the stroker 304 I'm building up for my '89 Grand Wagoneer, with a goal of getting 20-MPG out of the AMC V8 in a 4,500 lb. The 401 was the biggest, strongest engine that AMC offered. RIG: 1979 CJ 7 4.2L, TH 400, QT w/ part-time conversion and low range, 33" w/ 4" total lift! Rear Flange 6 Bolt AMC 1971 and earlier style. Here is a pic showing the comparison between stock head bolts and the ARP high-tensile strength set. Rhyne also added a provision for the oil-pressure sensor in the rear to obtain more accurate readings. "Stroker" engines have a crankshaft with a longer piston stroke than original. In engine families that have an interchangeable cam, such as the 290-401 AMC V-8, a cam that's smooth and docile in a 401 might turn a 304 into a low-rpm gutless wonder. Engine Rebuild Kit, Re-Ring Kit, 3.750 in. Summit Racing SUM-K8600 - Summit Racing® Classic Cam and Lifter Kits. $1000-$1700 for a "NEW" stroker kit! We also have matching 4340 Billet H beam rods to work with these 360 AMC pistons. Summit Racing Gift Cards - Always the Perfect Gift! KB Performance is one of several suppliers of pistons for AMC blocks. 360 390 401 AMC stroker crankshaft billet steel 4 inch stroke. Picture is a generic picture of previous built engine. This forged AMC 360 piston set is for use with a .030 oversize bore of 4.110 inches | standard stroke crankshaft of 3.440 in. A bung is included for water meth injection. We have rods available for the AMC 360, 390 and 401 engines with stock stroke crankshafts and also special AMC stroker rods, 6.000 and 6.125 inch long for use with either a 2.000 inch or 2.100 inch crankshaft rod journal size as used on many AMC stroker cranks. 360 390 401 AMC stroker crankshaft billet steel 4 inch stroke. Jeep, with a decent increase in power over a stock AMC 304/360. Net result is approx. Some engines are all "Brand New". AMC performance parts AMC engine parts AMC racing parts AMC transmission parts American Motors Corporation 304 360 390 401 AMC stroker engine parts on Sale. ~58cc Chambers, Heads will incorporate combustion chamber grooves which allow use of 87 octane gas on 10:1 motors … may run E85 at some point, VALVES: Small Block Chevy conversion (w/undercut stems), INT:  1.94” diameter (stock AMC 304 is 1.787”), EXH:  1.50” diameter (stock AMC 304 is 1.406”), ROCKER ARMS: Scorpion 1.6:1 Aluminum roller rockers for AMC V8 (Pedestal-mount setup … modified Ford Pedestal), HEAD GASKET: ROL XTreme 0.045” compressed thickness, INTAKE MANIFOLD: Offenhauser 360 Equa-flow intake for AMC V8 with Quadrajet pattern. Quantities can be changed by clicking 'view cart' at the top of any page. Set includes 8 pistons, 8 piston pins, pin lock rings and premium piston rings. Most are shipped UPS Ground, unless otherwise specified. Find AMERICAN MOTORS 5.0L/304 AMC V8 Camshaft Kits and get Free Shipping on Orders Over $99 at Summit Racing! DSS Racing Produces Forged Pistons and Stroker Kits For Racing Engines. … Pictured is a TBI complete system for a 2bbl AMC V8. The 390 and 401 engines used larger ones than the smaller 304, 327, and 343 mills. wispts539a45: Manufacturer: Wiseco Pro Tru Pistons: We also have matching 4340 Billet H beam rods to work with these 401 AMC pistons. Crankshafts are 4.150" stroke with 2.100" chevy journal. 1970 - 1978 AMC 360 Wiseco Pro Tru Street series forged flat top piston set. http://somender-singh.com/content/view/119/49/ - Pics of grooved heads (from 2006), http://somender-singh.com – Guy who stumbled onto it over in India, http://www.youtube.com/watch?v=Ss7slCT0Vpw – Youtube video of a guy grooving his 3000GT 4-valve head. 401 AMC Wiseco Pro Tru Street series forged reverse dome top piston set. Great customer service. ! The 4340 material is a true 4340 unlike foreign counterparts. 401 AMC V8 parts in-stock with same-day shipping. AMC 383 Stroker Build - by Rick Jones The concept is to build a Max Cubic Inch 360 Stroker on a budget, in typical Farm Guys fashion. Bulltear Pro Products Website and E-Store. 74; Engine Break-In Oil Additive (1 Bottle) . The Milodon head studs are too long on the exhaust side (3 places) and hit the header flanges. D.S.S. Oversize symmetrical radiused valve pockets allow use of high lift cams and big valves. 1972-78 models were rated at 150 hp. Was: $337.84. Wiseco PTS539A45. | wrist pin size of .930 in. I'm going to run the OEM cover since it is in such good shape ... and my cam/dist. A 3.85" stroke fits nice in a 401 crank, and Molnar has a 2" journal proper AMC offset 6" long rod specifically for AMC strokers. Shop 304 AMC V8 Camshaft and Lifter Kits and get Free Shipping on orders over $99 at Speedway Motors, the Racing and Rodding Specialists. Fast shipping. ENGINE STORAGE KIT AMC JEEP V8 (290 304 343 360 390 401) PAINTING BLOCK OFF KIT. AMC 401/420 The highest-volume and most common AMC build is the 420 stroker. Wiseco PTS540A3, copyright © 2012 Motorsports Parts Corporation / ForgedPistons All Rights Reserved, AMC 360 Pistons Pro Tru Street Forged Dish Top 360 Piston Kit .030 Oversize 9.5 - 1 comp PTS538A3, AMC 360 Pistons Pro Tru Street Forged Dish Top 360 Piston Kit .045 Oversize 9.5 - 1 comp PTS538A45, AMC 360 Pistons Pro Tru Street Forged Flat Top 360 Piston Kit .030 Oversize 10.5 - 1 comp PTS539A3, AMC 360 Pistons Pro Tru Street Forged Flat Top 360 Piston Kit .045 Oversize 10.5 - 1 comp PTS539A45, AMC 401 Pistons Pro Tru Street Forged Dish Top 401 Piston Kit .030 Oversize 9.5 - 1 comp PTS540A3. His machinist is also a top-notch guy that does excellent work. Limited Lifetime Warranty. Undersize, Assembly Lube, AMC, Jeep, 4.2L, Kit My 304 is being stroked with a 390 crank, aftermarket forged 401 rods and custom Diamond Racing forged pistons. The bolts for the head studs are too large in between the rocker pedestal embosses and a socket won't fit down in there. . My original thought is that this would be an ideal engine for the Jeep guys contemplating a chevy swap. This AMC crate Stroker engine by Blue Monkey Performance would be EXCELLENT for that AMX, Javelin, Rebel, Scrambler and etc. Here are more pics of the build. I'll end up with aboug 10.2:1 compression with it, as opposed to 9.95:1 with the ROL gasket. | rod length of 5.875 in. It uses a 401 block that had been bored to 4.195 and a stock forged 401 crank that has the rod journal turned down to 2.100 for a 3.800 stroke. My new 8-qt oil pan didn't fit over the front/rear main caps, even with a little 'help' the bolt holes were off by 1/2 hole. See all 35 photos Working with the K1 Technologies 4.00-inch stroker crank (0.426 inches greater than the stock 390's 3.574-inch stroke), R.A.D. It's a nice package. ... AMC 360 Pistons Pro Tru Street Forged Flat Top 360 Piston Kit .045 Oversize 10.5 - 1 comp PTS539A45: Part No. Complete kit will mount two TorqStorm® Superchargers to a 304-401 cid AMC motor. It's a great intake, but it looks like the smaller runner placement won't work well with the Swirl-Port head design. I'll get pics of that up later. Ask about our core buy back program, available on select cranks! The max recommended overbore on a 304 is 3.875", or .125" over. In a slight hybrid design, the rod journals were ground for Chevy-sized 2.100-inch Clevite H-series bearings (original size was a beefy 2.250-inch). Kit includes superchargers, hoses, tubes, BOVs, air filters, carb hat, and all necessary brackets, pulleys and hardware for a complete installation. Fast shipping. See the footnote column for each engine. Customer Bruce Rask supplied the AMC block that was cleaned up and bored to 4.195-inch. Wiseco PTS538A3. Makes for 412 inches. The AMC 304 V8 had a displacement of 303.92 CID which produced 210 hp in 1970-71 and was built starting in 1970. 1970-1971 304, 360 and 401 AMC Jeep engines did not have a flywheel centering hub on the back of the crankshaft which was somewhat unreliable. Here are more links on the Fish, http://www.fireballroberts.com/Fish_Story.htm - History of Fish, http://www.fireballroberts.com/Fish_Story.htm - History of Fish in Racing, http://www.fireballroberts.com/Fish_Pictures.htm - Pics of Fish Carbs, http://www.mikebrownsolutions.com/NewFishProduction.htm - The New 2.0” Bore Fish Carb Reproduction ($850 for a carb … 100 being made), http://www.mikebrownsolutions.com/OrderFish.pdf - Order form for 2.0” bore Fish Carb. We should be doing more assembly on Saturday, so more pics to follow. The AMC 304 V8 had a displacement of 303.92 CID which produced 210 hp in 1970-71 and was built starting in 1970. The braided stainless hose transfers oil to the rear of the block to help maintain pressure to the lifters and cam bearings. | wrist pin size of 1.000 in. Here are some pics of what the Fish carburetor looks like. We also have matching 4340 Billet H beam rods to work with these 360 AMC pistons. AMC/Jeep 401 PERFORMER Engine Kit HI-COMP HYPER Pistons+Rings+Bearings+Timing. There was a service replacement block that has shown up in a few places that is a 401 casting, but was machined to either 4.08 or 4.165 bores for 360, 390, and 401 applications. The complete TBI system comes with all components needed for a closed loop system except for air cleaner, throttle cable/linkage, and fuel lines. The only other real difference inside the engine with the 401 as opposed to other engines in the lineup were the diameter of the bearing journals. Just food for thought, I am also wondering if the groove helps to promote a swirl in the combustion chamber during the compression stroke, as the piston forces air/fuel up into the chamber. This forged AMC 360 piston set is for use with a .045 oversize bore of 4.125 inches | standard stroke crankshaft of 3.440 in. It allows a 10:1 compression engine to run on 87 octane. No, it's not a Mopar engine, it's all American Motors with a 4.08 bore and 3.44-inch stroke … The 304 was dropped by the end of 1981—likely due to the fact that AMC's six-cylinder was making more horsepower than it, and its emissions were no better than the 360's. Technologies being employed for engine build: Listed below are my build specs and a few of the technologies I am using. Select all that apply 1 (+ $143.00) … Set includes 8 pistons, 8 piston pins, pin lock rings and premium piston rings. Wiseco PTS539A3, This forged AMC 360 piston set is for use with a .045 oversize bore of 4.125 inches | standard stroke crankshaft of 3.440 in. Complete kit will mount two TorqStorm® Superchargers to a 304-401 cid AMC motor. Filter Results Filter by Vehicle Individual Parts; Part Groups; Results 1 - 25 of 41 25 Records Per Page Default Sort . Stainless steel intake/exhaust washer/pinch bolt kit including: (8)Winged washers, (3)Round washers and (11) 12pt ARP bolts. | rod length of 5.858 in. The groove in the head helps shoot the flame front into the quench area of the piston for a more complete burn. $40.00. My buddy who's helping me build the 304 stroker is also going to build up a couple more AMC V8's, which will be up for sale. BLOCK:  1979 AMC 304 V8 (milled for Zero-Deck), CRANK: NOS AMC 390 Forged crank (cross-drilled), RODS: 5.858” long AMC 401 I-beam rods 1.001” bushing for floating pin, PISTONS: Custom forged Diamond Racing pistons (Special design for AMCs), Result in 9.8:1 compression with 58-cc heads, CAM: Crower Turbomaster Hydraulic flat tappet for AMC V8, Intake Valve Lift w/1.6 Rocker Ratio : 0.461”, Exhaust Valve Lift w/1.6 Rocker Ratio : 0.426”, LIFTERS:  Rhodes anti-pump up hydraulic lifters (variable duration), HEADS:  1979 AMC 360 heads. Engine rebuild kits for your AMC. | rod length of 5.875 in. I am also including pictures on this thread, as the build-up proceeds. Yes, the Fish carburetor is a very strange beast … goes against a lot of conventional carburetor ideas. I made a couple kits using a 390 crank stroked to 3.76" for a 360 for a 402, and it fit beautiful, no clearancing required, and the 3.85" should be the same. JEEP, the badest four letter word ever spoken! Here is the recipe for a 420 stroker: Offset grind 401 crank to 3.8 stroke with a 2.1 inch journal and as generous a fillet radius as possible. Thank you. 1972-78 models were rated at 150 hp. This forged AMC 401 piston set is for use with a .030 oversize bore of 4.195 inches | standard stroke crankshaft of 3.680 in. Jeep, with a decent increase in power over a stock AMC 304/360. | Compression is 10.5-1 with a 58cc head chamber or 11.6-1 with a 50cc chamber | -8.6cc, 4032 forged aluminum with ArmorGlide skirt coating. The company offers 12 different hypereutectic 390 alloy pistons it manufactures for 390 and 401 engines. Part Number: SUM-K8601. . EXHAUST: Doug Thorley Tri-Y Headers for Full Size Jeeps. They are not the same as a 360, and a normal 360 is not the same as a 401. Most of the displacement increase comes from a forged-steel, 4-inch stroker crankshaft manufactured by K1 Technologies. 's … We worked on the build more on Saturday, pics are attached. Modified for Lambda O2 sensor port, TRANNY:  TF727 and a Jeep NP208 T-case (2.69 low range). KB pistons are offered in both the 390 5.74-inch and the 401 3.68-inch stroke lengths. Bore, Rings, Gasket Set, Main and Rod Bearings, 0.010 in. I have researched various technologies for improving performance and MPGs and am implementing some of them in this build ... being a guinea pig, so to speak, for those that have shown some interest in them for their AMC builds, but didn't want to jump in head first. | rod length of 5.875 in. ©2019 Bulltear Industries Inc.; All Rights Reserved Most are shipped UPS Ground, unless otherwise specified. This is a true 4340 billet stroker crankshaft. We found a fast solution for that too when the Jeep guys divulged the secret of the AMC 360. D.S.S. Jeep AMC 232 3.8L L6 1965-1979 ENGINE REBUILD KIT (Fits: AMC) $320.95. Very strange 1b carb you got, never seen anything like it before. They work with either a floating piston pin or pressed pin type connecting rod. The longer stroke should help the low end torque making it ideal for the full size Jeep fans too. Set includes 8 pistons, 8 piston pins, pin lock rings and premium piston rings. | wrist pin size of .930 in. This is a guy who builds up AMC's and seems to have a good reputation. Great customer service. We also have matching 4340 Billet H beam rods to work with these 360 AMC pistons. The one pictured is a 1 5/8” bore Fish carb. Ask about our core buy back program, available on select cranks! This forged AMC 360 piston set is for use with a .030 oversize bore of 4.110 inches | standard stroke crankshaft of 3.440 in. Summit Racing SUM-K8600 - Summit Racing® Classic Cam and Lifter Kits. Old K1 part number: 390-4000LB6B New number: 002AAD400 Oversize symmetrical radiused valve pockets allow use of high lift cams and big valves. http://speedtalk.com/forum/viewtopic.php?t=4069&postdays=0&postorder=asc&start=0 – Racer forum discussion … I have chatted with Randy Naquin ( aka Automotive Breath ) on this forum and he has been modding a lot of heads with the grooves and good success in torque & MPG increases, along with decreased ping. | wrist pin size of .930 in. Also, I have pics of the ROL Xtreme 360-401 head gasket vs. the Felpro HiperBlue 304 gasket. In most cases by replacing the flexplate/flywheel this AMC 427 CID engine will replace that tired AMC 304 or AMC 360 or 401. We also ran into some 'speed bumps' with parts that don't fit or don't fit without more modifications needed. I modified the Offy 360 intake for use with the Fish carburetor, cutting the plenum devider down about 1.25" to help better divert the air flow, since the 1-barrel fish is positioned directly over the divider. Old K1 part number: 390-4000LB6B New number: 002AAD400 If you want to use a 1972 or later style flexplate / flywheel a concentric adapter will be required. They work with either a floating piston pin or pressed pin type connecting rod. Stock AMC main journal sizes, Rod Journal Size is 2.100 small block chevy diameter. 330 cubes and an engine that should put out 300+ HP (not that it matters for a Jeep, but torque should be great!).