im building and ls vtec with a b16 head want to go all motor i was thinking about itr pistons or ctr not sure which ones are better another option that i have to not spend money on those pistons and take the used p30 pistons that are n my b16 block that i beleve are still good and put those in so f you could let me know what you think i should do it would be really aprecated

 

difinetly ctr all the way

 

yea u are an idiot use the p30's your compression with the ctr pistons will 13.9 have fun paying for gas getting it tuned and driving around... let me no how your 13.9 comp goes for u by the way with the p30's its 12.1

 

not to mention you will either shater your psitons or bend every valve in your head.. your piston to valve clarence is -0.016

 

pr4 rods(LS) + CTR PISTONS =13.2.1 CR
HIGH OCTANE NEEDED DIFINITELY
AND YES GOOD TUNING
I WAS WRONG P30 IS SAFER

 

so i should just use the p30s

 

if i use lets say itrs or ctrs will the rods fit on the pisotns

 

I use PR3 pistons in my LS, with a stock headgasket, stock LS head, and the block is decked a little, compression is around 11:1.

 

the itr pistons you need to shave the rods so they can fit. the p30 pistons fit on w/o machining. i used pr3 pistons in my 1.8L lsvtec. made 217hp. my comp was like 11.7:1 with flat valves too

 

right now my rods have pr3 pistons on them does that mean that they have already been machined