Question on an engine

[hvychy]

I want to rebuild my engine on my Typhoon. Now, I just read that I could use a z block from another truck that is not turbo. It sounds great cause I can get one from the junk yard for like a $100.00 bucks or so. Now the heads are my only real concern meaning c/r . should I rebuild the bottom end and then put my heads on the other block or can I use the same heads? I also want to oversize the pistons and maybe lower compresion to run more boost. IS this a good Idea? I still have the stock turbo and of course will upgrade later. Thanks in advance for any help

 

[jwaller]

all the heads from that vintage are the same. but the one element you will be missing in a stock GM (non syty )block is the main caps. the stock syty caps are much stronger than a standard 4.3 so you could get a 4.3 but you'll need to replace the caps with steel or find some original syty caps.

 

[Methuselah]

Can someone provide a picture of the stock SyTy block's main caps?

I believe my block has been replaced, and the caps are identical to those from a 88 4.3 block I have. Im just curious if the caps are specific to the SyTy block as you say, or if the engine was rebuilt with weaker caps when it was under warrenty.

Thanks,
Seth.
________
Oregon Dispensary