im trying to get the parts together for a 2.1 stroker, i have a new 257 crank and ive bought a set of -2mm i beam rods from wms, i need to get .5 over pistons and dont no which ones to get as there all different regarding cr. does this matter or is that left to the thickness of headgasket, i lose my mind when it comes to the cr, im using scd block with .5 oversize with big port avcs heads.
has anyone got any ideas, thanks in advance phil

 

any1

 

Running Mahle stroker pistons in mine, 92.5mm.

 

what thickness headgasket did you use. cheers

 

.78 RCM.