chuckd05

I have another totaled out gsr and i want to keep my built bottom end so i am going to go ls/vtec. What pistons am i going to have to get, right now i have je 9.2:1 i believe for the LS, can i use these with the vtec head and if not which pistons am i going to have to get. For turbo of course, thanks!

chuckd05

I did a search too and couldnt find anything, that is why im postin this. I hear you need b16 pistons, but than will i be able to keep my same rods? I am not doing the work but someone from a local shop is im just curious to compare what he says to everyone elses thoughts

boostaholic

You can keep your LS rods, but you'll need either b16 or b18c pistons due to the larger valve reliefs.

chuckd05

Aight, do you by any chance have a link to a good place to order these from? And what compression do you reccomend?

Mr. Softee

you cannot alter the dome size of a vtec piston, it is what it is from the factory. The only way to lower your compression with vtec pistons would be a thicker headgasket. Using GSR pistons shouldnt make your compression that high anyway.

Personally Id go with aftermarket pistons while you have the block apart. Just use JEs and tell them which vtec head you are using. Your crank will raise the compression a little but not that much.