Quote Originally Posted by eYezs1ck
TYPE R < GSR for boost. OP wants to boost but for N/A Type R FTW

GSR block + TYPE R head
Depends on what your definition of greater is. Stock for stock, If you want quicker spool, from the increased C/R Type R is better on boost. But if you are looking for better flame travel/combustion GSR is probably better. I prefer Type R block with GSR head.

Quote Originally Posted by kpowerhatch
i ve been reading on them all day the jdm b16 and the usdm gsr both come with 170hp the heads are almost the same.they just dont have the same tq
They are no where near the same engine. Just about everything except for the bore is different. And GSR's have P72 heads (smaller combustion chambers, & different intake manifold bolt pattern), B16's have PR3 heads. GSR has more displacement and is a better engine all around.