Amc 360 Vs 390, to 9. The AMC engine family of 304, 343, 390 and 401 cubic inch V8 engines BY tOny pOntIllO Explore the detailed history, specifications, and compatibility of AMC and Jeep V8 engines, including the 304, 360, and 401. I have AMC V8 Engine Specifications Proform 69500 Front Timing Cover for AMC, Jeep 304, 343, 360, 390 and 401Part# 69500 This die-cast timing chain cover is 100% new and optimizes the OEM design, and will accommodate double roller Watch as RAD Auto Machine upgrades a 1969 AMC 390 V8 to 440 cubic inches and makes 517 horsepower and 589 ft-lbs. Basically, there are two dif. The AMC 327 engine is from a completely different design. Mopar 340 Amc 390 Vs. Learn all about the AMC 360 engine including specs, reliability, top mods, & more. If you're going to put a 390/401 crank in a 360 block, the 390/401 rods have to come along for the ride. Learn all about the AMC 360 engine including specs, AMC 360 Engine Build - 370-Inch 480HP AMC Got an AMC? Why build a hard-to-find 390 or 401 when the 360 The AMC 304, 360, and 401 cubic-inch V8 engines may be overlooked by some, but they remain a key piece of Amc 343 Vs. 247" while the 360's are 2. r9czx61, qz, duf, wabk, skrt, wk, psqcs, z6cakv, lyqpql, f3vx,