transmission swaps

[Phil Waterman]

This topic comes up from time to time, but one thing I always wonder about is the matching the ratios of the transmission and axles to the peak torque of the engine.

While lowering the engine RPM in 4th gear over the road for the original 216 engine is kinder to the engine, without and increase in power don't really think any of the bigger CMPs are going to travel faster.

Has anybody matched up the ratios of the different synchronize candidates?

I saved the transmissions and bell housings from the 235 and 261 cubic inch Chevy engines I have. Both are synchronized transmissions 4 speeds.

Briefly considered going the full engine and transmission transplants into the C60L and C60S but the list of modifications concerned me as some of them require modifications to the trucks which I didn't want to make.

As mentioned the bell housings for the synchronized is different, engine mounts different, clutch fork location different, and of course the short shaft would get even shorter.

Matt with the CCKW in your C15 Radio Van which engine are you running? I didn't think the CCKW transmissions were synchronize so the advantage in that swap is the 5th gear?

Cheers Phil