Hey, just trying to see what everyone thinks I will need to do to put in a small block backed by a th350. I just finished building the 350 and picked up the th350 last week, and I am wondering what I am going to need to do to the motor mounts... etc?

Thanks,

Michael

 

I just did the I6 - V8 conversion on my 68 Coupe not too difficult or expensive...I dropped in a 350/330 hp crate engine and Turbo 350 trans.

The things I had to change were motor mounts and frame mounts (pretty inexpensive), radiator shroud, power steering hoses, belts and hoses, and other miscellaneous hardware.

The V8 will bolt up to the stock trans (Powerglide),but thepowerglide for the I 6 has less clutches, etc. so i would suggest at least a Turbo 350 trans.I used the original radiator (2 core). The radiator cools OK, but I may upgrade to a better aluminum radiator.

The front springs are 6 or 8 cylinder specific, but I did not change mine and do not plan on it as The car seems to ride better and have a better stance with the added weight.
Brakes, wheel bolt patternand everthing else are the same as a V8 that I am aware of...

Excluding the engine and trans it probably cost me $300 - $400 in mounts, belts, hoses, etc...I also had to modify the shift linkage for the Turbo 350 as the original Powerglide linkage would not work...

 

What did you have to modify with the linkage. I am also fixing to do a I6 swap to a v8.

 

I used a Lokar brand universal linkage kit from Classic Industries...About $50