hey I have a set of srp 9.1 to 1 comp pistons that are 81.5mm and are for a b18a/b and my question is can I use these in My b16 without any valve clearance issues. Or will I have to grind out the valve reliefs for the vtec valves and it will have blox type b cams. Please someone help me out. I also do not know the part # because its not on the bottom of the pistons. thanks

 

post pics please, most forged pistons have huge valve reliefs regardless if there for vtec or ls motors.

 

then they are not srp.. all srp's have the p/n on the bottom right under where the wrist pin goes

 

afaik, they are not a pt# but a casting #

 

there r some pics. thanks

 

Install one and clay it. Yum....deep dish.

 

I should have .022 inches piston to deck clearance according to the zeal compression calculator. I just want to be sure but in not trying to put it together and clay it to find out I just have to take it apart and get other pistons. thanks

 

those look lower than 9:1

 

yeah they do. they seem like 8:1. did you even bore your block?

 

why

 

these in my b16 should be around 8.2 to 1 comp.