The 401 cranks and rods are forged and tough enough for a performance rebuild. Look for th
Early AMCs came equipped with the Borg-Warner Shift Command automatic or the T10 four-speed on the performance models. The T10 has always been a decent piece, but the Shift Command automatic shifts poorly and has little or no aftermarket support for performance use. The reason is that after 1972 you could get the TorqueFlite 727 Chrysler transmission with an AMC bolt pattern from a fullsize Jeep or AMC passenger car. With the door open to all the mainstream Chrysler speed goodies like converters, shift kits, and shifters, it's no wonder the early automatic is more for pleasant street cruising while the 727 is used for Friday night drag racing.
The easy way, of course, would be to pick up a catalog and order the 727 or even a 904, a converter, and a shifter and call it done. But if you're into it, Advance Adapters has an adapter to retrofit any GM trans, including overdrives.
This is a stone-stock 401 from a '78 Cherokee. If you know what you're looking for, it isn
The standard transmission is a bit more straightforward; if you're lucky enough to score a four-speed T10 car, leave it in there. It also should be known that the T5 five-speed from late-model Mustangs and Camaros can be used with the stock bellhousing from the 401 AMC V-8. With a pilot bushing or flywheel swap, both are acceptable for performance applications.
Finally, the dress-up. Unlike Big Three cars, AMC used the 5-on-4.5 bolt pattern on all its musclecar-era cars. This happens to be the same bolt pattern as Ford and Chrysler, so swap meets and any of the huge number of wheel makers can provide rims for an AMC. Also, because of the Jeep guys, you can score about any part for the engine in chrome. All good, just don't overdo it. CC
After 1970, the 390/401 engines had dog-leg exhaust ports. Early text suggests they flowed
Although these engines are from the same family, they share external dimensions only. Left
This is the Model 20 that you get with a V-8 AMC. It's got a bad reputation, but with the
Here is the problem with the Model 20. The axle passes through the hub and is attached wit
The TorqueFlite 727 has an AMC bolt pattern after 1972. These can be rebuilt using the sta
Everything you see here is off-the-shelf for the AMC. This 401 has an Edelbrock Air Gap in
We found several cars hidden in a warehouse right here in Los Angeles. Know what they are? Log on to carcraft.com if you think you do.
Advance Adapters Inc.
2700 California St.
Auburn Gear Inc.
Reider Racing (Precision Gear)
151 Industrial Dr.