that is if you can find one, and if you can write the check once you do. Old K1 part number: 390 … Products to Compare (max of 3) X. It will set you back in the seat and still has good all around power. 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. hey all i am new and i have been reading threw this forum for awhile now and i am all hung up on the amc stoker motor. 401 AMC High Performance Balanced crate engine. 4.185 is a bit of a rare size being .060" over on the 400 (+.020 for 401) but is out there. If you have the money and just want to go all out, you can get made in USA custom rods from R&R in Illinois. I was scared by the lack of material under the piston in the valve relief area. ya i am still playing with the car to set it up to and i know i will gain some from that. Just not going to make much more power. But at 4 times the price of the K1 it is hard to justify. 39 watchers. but why overlook the 360. another amc performance engine first available in 1970. unlike the other classic pair, the 360 had a two decade production line. He just had a 360 and we were going to build a 383 stroker but, he found a 401 crank and rods. But hope to soon. My combination is a 3.79 stroke, because that is where it ended up, a 9.142 block height because I had cut it to get 005 deck with TRW pistons and then changed my mind, and a 5.85 Eagle rod. Unavailable. I ended up at 417, tried to make a 1.42 chevy piston work but with a 5.85 rod and the off the shelf pistons I had too much pin boss material below the pin and they would have hit the crank counterweight. Forged Pistons Are Stronger And Longer Lived Than Cast Pistons. The Indy 401-SR aluminum cylinder heads feature a 235cc intake runner and flow upwards of 275 cfm with basic port matching and bowl work. The idea was to make strokes and rod pin sizes in various sizes. This AMC crate Stroker engine by Blue Monkey Performance would be EXCELLENT for that AMX, Javelin, Rebel, Scrambler and etc. Buy It Now. Rolyn came to us looking for a machinist and machine shop familiar with the 401 AMC and capable of stepping up the performance a … This engine is not in stock. The AMC’s greater length stems from its multi-tasking front cover, which contains the water, oil, and fuel pumps, and ignition distributor drive. Shelf forged pistons are available for the 401, but the 390 will require more expensive semi-custom pistons. Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 289/300, Lift .473/.497, AMC, 290-401, Kit. 360 390 401 AMC stroker crankshaft billet steel 4 inch stroke. Engines: Upgrades Factory Options General: The AMC 258 was introduced in 1971 in J-series pickups and … The "cook book" 420 is 30 over block with 3.800 stroke. compression height is a dimension, measured from the center of the wristpin to the top of the piston. If you want to use a 1972 or later style flexplate / flywheel a concentric adapter will be required. AMC 360 390 401 Rods. Works great. Contact us for build time. It will set you back in the seat and still has good all around power. FX And XR Pistons Come Standard With The Patented X Groove Which Fights The Damaging Effects Of Fuel Washdown And Wear Debris. Free … $10,995.00. I was thinking of the AMC 327 forged rods, which are 1.00‚Äù wide and have the same journal size as the 390/401 (327 rods are 6.375‚Äù long and are FORGED). The 390/401 rods are around 0.92‚Äù wide, while SBC are 0.94‚Äù wide. a similarly built stroker isn't gonna gain a helluva lot over the 409 inch engine you currently have. a 401 is typically about 1.50 inch. Refurbished. The rod journal is then widened to 1.900 for a 6-inch forged Eagle I- or H-beam rod with a … The 390 cu in (6.4 L) AMC V8 produced 325 hp (330 PS; 242 kW) and 420 lb⋅ft (569 N⋅m; 58 kg⋅m) of torque in all except the Rebel Machine. $18,495.00. Where the 390 and 401 differ is in their stroke. At the time we had alot of interest and folks ready to buck down some coin for a stroker forged crank. 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. Oct 25, 2014. The AMC 401 is probably a better choice, but the cool factor of the one-year-only variant is too much to pass up. Works with a 1.260" compression height piston. The real fun started when they did a buildup of a 401 and got 481 HP and 497 FT Lbs of torque. Both of these connecting rods have the AMC beam offset for correct fitment. Buy It Now. I also fought with the 5.85 rods and would never do that again. Also...is this the best/most economical way to go about it? View this page as large as possible, and under high resolution for best results. This website uses cookies for functionality, analytics and advertising purposes as described in our, http://www.campbellenterprises.com/amc- ... wiseco.php, http://home.hiwaay.net/~langford/corvai ... oblem.html. This website uses cookies for functionality, analytics and advertising purposes as described in our, http://www.youtube.com/user/overtimeracing. If you know someone that is a Wiseco WD you can do better on those prices. Otherwise, the 290-401 is a gem of efficient space and weight use. In most cases by replacing the flexplate/flywheel this AMC 427 CID engine will replace that tired AMC 304 or AMC 360 or 401. Has anyone built this themselves, and how do you like it? Shop millions of cars from over 21,000 dealers and find the perfect car. The standard package around here is a 3.850" stroke using 6.00" SBC rods and a 4.200" bore. today find a good used 390 or 401 and you've got the correct engine to build for any classic amc car. Plans change and a drag race-only car isn’t in my future anymore so this engine has to go. AMC Production Specifications: These specifications were produced in the early seventies. Refurbished. In most cases by replacing the flexplate/flywheel this AMC 427 CID engine will replace that tired AMC 304 or AMC 360 or 401. I'm talking 1.5mm or even 1.2mm barrel top, and napier second rings with reduced radial dimensions from Total Seal (gapped). Remanufactured Long Block AMC 401 1974-1978-Remanufactured, NOT rebuilt. Fillet radius is where the surface of the rod journal transitions into the crank counterweight. D.S.S. This is a very high stress area and where a crank begins to fail. Never seen the article...Nothing economical about custom pistons...Personally the plan with mine is a 3.750" crank 6.200" x 2.100" rods and a CH of 1.125. Engine specific production specifications for 360 - 401 engines! I have a 4.185 x 3.80 stroker in my race hornet. AMC Stroker 427 401 360 Turn key High Perf balanced engine Aluminum heads AMX . Rods. And yes there is a difference, a big difference. When I planned this motor it was custom rods or chevy rods that you have to reverse and re-chamfer the rods and bearings or accept the uncentered rod offset. I have a 390 block, so that off the shelf piston was going to need material cut off the top, off the bottom of the pin bosses, and new bigger valve reliefs. DSS Racing Produces Forged Pistons and Stroker Kits For Racing … Build times vary. 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. I specified the dimension under the pin, the valve sizes, and ordered the compression height for my combination. it will still make a bunch more power as it is with the 10.25 compression it likely has. Basically, he didn't want to spend the money on a 401 block. The article read loosely: Not typically mentioned (and very important) is piston ring availability. your car leaves alright, but you can still get a lot of performance out of your chassis with a higher stall convertor , a transbrake, and chassis tweeks, yaknow stuff to get your 60 ft times down. Watch. The customer didn't have a 401 block. Find 31 used AMC AMX in Addison, IL as low as $29,500 on Carsforsale.com®. 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. The 390 and 401 have the same 4.165-inch bore size. If i were you, I'd enjoy what you have and learn what you can from it. I bought the wrong ones, I was going to have to pay for machining 3 times, better off both technically and cost wise to just buy the right pistons. As some of you may know we started discussing a new forged crank (stroker and stock replacement) over 10 years ago. Also, I was incorrect on the AMC 390/401 rods being wider than the SBC. Make sure you can get quality rings for the bore size your looking at. compression heights can be incresed or decreased when ordering custom pistons to acheive whatever "deck height" or dimension the piston top is above or below the block deck surface. For all you AMC fans out there you GOTTA check out the next Horsepower T.V episode on TNN Tomorrow! The heads were fitted with 2.100-inch Manley titanium intake valves and 1.650-inch Ferrea stainless-steel exhaust valves along with springs, retainers and 1.6:1 rocker … They had a 70 Rebel Machine and a Gorgeous 69? I WAS going to bore his 360 to the 401 standard bore but no one makes forged standard bore pistons. Problem is torque is pretty much proportional to cubic inches, so going from 407 or 409 cubic inches is only going to get you 3-5% more. K1 Technologies offers several other H-beam connecting rods for AMC V-8 engines: a rod for the 360 blocks that is 5.875-inches long with a .930-inch wrist-pin end, and an additional H-beam rod for 390/401 blocks that is 5.858-inches long and has a 1 … Unlike many of the products Another way to look at this, could you sell the 390 to a restoration guy (stock bore 390 should be worth at least $1500) and pick up a 401? A good target for a stroker is 420 cubic inches. Read their website, and you will understand why I suggest them. there are some advantages, I guess. 401 AMC V8 parts in-stock with same-day shipping. God thats gorgeous!! SKU: $0.00. Why a 401 block over a 360 or 304? I'm looking to build the 420 stroker engine that was outlined in the June 07 issue of Car Craft. The 390 and 401 engines used larger ones than the smaller 304, 327, and 343 mills. Thanks for the help!! Has Been A Continuous Presence In … AMC V8 Engines - From GEN-1 Nash/Hudson/Rambler V-8s (1956-1966) through to the GEN-3 AMC Tall-deck (1970-1991) AMC V8 hp/Torque, Compression & Bore/Stroke by year Jeep Wrangler JK per item. D.S.S. Part Number: SUM-K8600 Free shipping. AMX with a claimed 700 Horsepower on the set. I also did a 401 crank with 2.100 journals, about the same stroke. That puts in you in the 6" rod SB 400 range, then see if the piston company will do one in your bore size, shouldn't be considered custom cause its just a larger dia. These rod sets come complete with 8 rods, 7/16" ARP 2000 rod bolts, installation instructions and assembly lube Molnar AMC engine rod sets listed below have the correct AMC rod beam offset; C-C = Length of rod, center to center, in inches; Rod Jrnl = Crankshaft rod journal diameter in inches; Pin = Wrist … of something they already make for the shelf. DSS Racing Produces Forged Pistons and Stroker Kits For Racing Engines. Just go 6" and custom pistons and be done with it. I do not have current numbers at this time. AMC 401/420 The highest-volume and most common AMC build is the 420 stroker. Enough to satisfy the 95% of all AMC… Shop 401 AMC V8 parts and get Free Shipping on orders over $99 at Speedway Motors, the Racing and Rodding Specialists. Rear Flange 6 Bolt AMC 1971 and earlier style. The Supercharger Store’s Bob Woods enlisted the help of Larry Peto at Larry’s Engine & Marine to build the engine and then adapt a ProCharger D1-SC supercharger to the front of the AMC 401. The car and the engine!!! I also did a 401 crank with 2.100 journals, about the same stroke. This muscle car engine was rated at 340 hp (345 PS; 254 kW) and 430 lb⋅ft (583 N⋅m; 59 kg⋅m) of torque due to a different intake. spend your cash on head improvements and maybe a roller cam. S 8 X p o n N s o r e Q Y 2 L d 2 8 D E. 401/450HP AMC Crate High Perf balanced engine Edelbrock heads AMX Javelin Rebel. The 401 was the biggest, strongest engine that AMC offered. This AMC 401 crate engine by Blue Monkey Performance would be EXCELLENT for that AMX, Javelin, Jeep Wagoner, etc with its 406hp @ 5000rpm and 484ft lb of torque @ 3,000 rpm it will set you back in the … For all out high rpm maximum durability you could keep the stock stroke and maximize the fillet radius. This is the engine with the 6" Chevy rods and custom diamond pistons. So those pistons were replaced with custom BRE pistons. The more you stroke the less you can increase the fillet radius. I used a 390 crank, so I have 2.00 journals. The bigger the radius, the lower the stress concentration. I've had the "out of the box" rings and that can be $1200 and now I have 4.235 which can be around $450 for the same type / material ring. That's the same as 427 Ford or even the 454 BBC is often 4.250" and that will work with a 4.235" bore. AMC 401 V8 AMC 360 V8 AMC 304 V8 AMC 258 I6 AMC 232 I6 "Dauntless" 350 V8 "Dauntless" 225 V6 "Vigilante" 327 V8 "Tornado" 230 I6 Perkins 192 I4 "Hurricane" 226 I6 "Hurricane" 134 I4 "Go Devil" 134 I4. Stock AMC main journal sizes, Rod Journal Size is 2.100 small block chevy diameter. This AMC crate Stroker engine by Blue Monkey Performance would be EXCELLENT for that AMX, Javelin, Rebel, Scrambler and etc. IF you can do the machining yourself, or have a buddy that will do it, no technical reason you could not make chevy 400 pistons work. Production only lasted one year (1970) before it was stroked to become the 401 …