Hey guys ive been throwing around the idea of doing a split port swap and/or a 4.2 stroker kit. I was wondering what would the hp gains be for a split port swap with a 4.2 stroker kit on a 1998 V6 5-speed?
So what all do i need to keep from my 3.8L engine to do the 4.2L swap.
Also can some one explain how to do the swap like whats all needed, i read a couple of forums and i got all confused when it talked about the girdles and stuff.:kooky:
ALL 4.2s are split port. So just find one in good shape and you don't need to swap heads.
You will need to use an 01 up oil pan, pump pickup, and dipstick. Also 01 up flywheel if you have T5.
Depending on how the truck PCV is setup you may want to keep your valve covers. I used the 05 valve covers with the large ID heated PCV and it was a huge mistake and PITA to adapt all the hoses together.
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