Hello, first post here.

To start off, I have an 85 s15 I got as a parts truck. Had a 2.8 in it originally but previous owner used the engine for something else.

I just bought a rebuilt 250 L6 for $350. The block has been decked, head resurfaced and ported. Has a solid cam along with forged pistons and few misc parts.

Will the 250 bolt up to the current transmission in the s15? It is a 4 speed manual. And would running boost up to 15psi be OK for this engine?

I would love some suggestions for different parts I would need/swap out to handle a turbo. I am pretty green when it comes modifying engines, but the truck was free and the engine was cheap.