Thread: 350 gen I vs vortec rebuild

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Originally Posted by mplumb59

So are you saying the only things that ARE interchangeable are the oil pump, rod and main bearings, pistons and rings? Everything else will have to be vortec specific? What about the rods themselves.

Rods and pistons will interchange. Heads were designed for flat-top pistons.

Originally Posted by mplumb59

Any suggestions?

Yes, rather than setting yourself up for some pretty stiff Federal fines for defeating factory emissions control systems, rebuild the V6, sell the truck and purchase an older platform that will be emissions exempt so you can use a carburetor on the L31.

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