Hey guys. I've done a lot of searching and found similar questions but not in the exact way I want to ask it. So, here goes nothing. I bought a motor from a guy for decent price. It was a GSR bottom end with a B16 head. I want to know, if I use an LS crank and rods with P30 pistons, will there be any clearance issues or am I better off just keeping the GSR crank? I also wanted to use ITR valve train with skunk2 cams? Also have b16 trans attached with future lsd and ls final drive. Any advise would be great. Thanks a ton.

 

Also, I was wanting to go to either 81.25mm or 81.50mm bore.

 

Use 81.5 ITR pistons on the LS crank. Thank me later

 

On average b16a cylinder head have been resurfaced avg.of .010" so running the pr3 piston should put you approximately 11.7:1 compression ratio depending on what the deck height end up at and the gasket thickness you go with.

 

i think the only skunk2 cams that you "can" run on itr valvetrain are tuner1's.

for that you dont need compression closer to 12:1, you can do fine around 11:1.

just as important as compression is having a setup that works together. including header, intake manifold/tb, cams.

 

I was also thinking using the LS crank. That seems to be the majority consensus anyways. But, as far as the pistons and drivetrain, should I use the PR3 or P30? And still good with the ITR valvetrain? I just need a little help before ordering.