which pistons do you guys recomend. I plan on upgrading my stock ls pistons (b16 head) to either pr3 or p30 pistons. I am also going to be looking into skunk 2 cams (stage 1 possibly 2). What are the advantages of these pistons. And I have read you can put these pistons on the stock ls rods w/o maching the rods, is this true?

 

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well pr3 piston's come from a usdm b16a2 block and yield about 9.8 CR while the p30's come from a jdm b16 and easily put you in the 11's