Peabody said:
If it were me I'd stick with what you have and build a different small block.
If I planned on running naturally aspirated, I'd likely just grab a cheap 350 and beef up the 700R4 that is already in the truck. Since I want to run a turbo, and make way more power than is sane, an LS build seems a better starting point.
Vigo said:
Since putting the 4200 in a Colorado involves moving the radiator, I assume putting it in an S10 would require moving the radiator.. to the bed!
Amazingly enough, on the build I found, all they had to do was relocate the radiator into the core support, which I already did for the SBC swap. That kind of made me wish the era of cheap JDM front cuts was still around, so I could grab a IJZ, 2JZ, or RB motor/trans combo for good price. I had thought about a Lexus 1UZ or 3UZ as a starting point, especially since the early 1UZ is non-interference and takes boost well, but despite being compact for a DOHC motor, it was still wide enough that it would have to sit pretty high to fit, without reengineering the front suspension.
