Re: Engine Swap
The flexplate you need is for the AMC cars, '72 to '76, Matador or Javelin, and are around $50 at a tranny supply shop. Be sure to remove the spacer ring inside the crank of the 401 that reduces the size for the TH400 torque converter. It looks like a cam bushing. The 727 converter fits the crank only if the ring is removed! If you use the 360 2 barrel and manifold, you won't have any problem with smog or trans linkage, and the reliablity will be much improved too. Usually, the 4brl has the lower stud for the kickdown linkage and the adjustment should be able to allow for the added length needed to hook it up. Be sure to use the dampner off the 401 also as this is part of the balance too. Get a new fan shroud if your old one is broken or missing and a new thermal type fan clutch if it over a few years old. The factory 7 blade 19" fan is the best one to use. If you're not going to tow, the 3 row radiator is fine if the fan and shroud are present. Use a 4 row if possible though. Hope this helps, good luck!