tranny question

That's intersting feedback and thanks for posting, but I've never encountered an internally balance Mopar engine after 1974 - in big or small block.

I've also never had any problems swapping between any of the small and big block assy's as long as I matched external and internal components. Even when I reference Allpar, there's nothing after '78 that was internally balanced - they all used cast cranks (cheaper to put weights on HB and TC than to internally balance them).

From Allpar:

Chrysler's most compact V-8 *(318) designed to be rugged and dependable - is equipped with the second-generation for 1978. Features include:
  • Hydraulic valve lifter (tappets)-no periodic adjustments required
  • Induction-hardened exhaust-valve seats
  • Cast ductile crankshaft
  • Aluminized steel exhaust and tail pipe
Again, I don't doubt what you're saying here, but my experience has been the opposite - for street applications with occassional trips to the strip.

Southernman

Hi Southernman. Allpar is one source of confusion that started all this mess. I don't know who wrote that site but it has it's share of error's, one being the 318 was externally balanced. A cast vs. a steel crank is not what determines if an engine will be externally or internally balanced although cast cranks are lighter so sometimes (as in the case of a 360) they don't have enough weight on the counterweights to balance the reciprocating assy.

I understand it's not a problem swapping parts as long as they are matched (internal vs. external balance).

Thanks for the feedback.