Originally Posted by 69 C10
I have a 1969 chevy c10 with a 292 engine and a 4 speed muncie. I want to put a turbo in it. I'm still in high school about to enter senior year and i just want a truck that's fast to beat those chevy vortec engines and those hondas. I wanted to know what type of turbos are good for this like a cummins or a gt35 idk tbh. i also wanted to know what internals i need to upgrade to support this mod and what type of manifold would would go good for this and the type of carburetor. i would like the horsepower to to be greater than that of a 350 and kinda. Any Suggestions?
The issue with GM inline sixes is the pistons. Cast pistons are not friendly to a even a minor tuning error with boost. The solution is forged pistons. Check out the price of a set of Ross forged inline six slugs (ouch!). After that a set of 3/8" pushrods, minor upgrade on valve springs and you have the definition of a low rpm torque monster - your 292 will feel like a BBC. Hopefully you don't have the 'integrated' head motor, if you have one of those amorphodite's, then start over.
Keep in mind that it will be a ton easier and ton x2 cheaper to grab a worn out 350 and throw the turbo on it and make more power. But don't be scared to be different - inlines are cool!
In terms of turbo sizing, a chinese 70mm journal bearing will be great fun. If you aren't into the china junk, then an S366 BorgWarner will get 'r done.