Wisco Pistons

[maxwell]

the prox pistons ihave used were between 16 and 18 thou reccomended.and tighter you are supposed to file them back. i never set any clearances on the motors i do because i take the top ends to my machinist and he works his magic on the clearances and boring. im not sure what he sets the wisecos at all i know is he shaves them from what he gets from them. and they have always held 150psi even with shaving the rings.

i only check it when i get a bb from rkt because he doesnt do it.

 

[Justin_sane]

Wiesco pistons are a forged aluminum , stock are cast , forged expand more so you really have to make sure your clearances are rite .

this is the exact reason warm up is very important. When cold there is more piston slap until the engine is at operating temp

 

[tex78]

id go with mcb performance pistions....... my 2 ringers with caged bearings, and gaskets were 299.00 usd...... and they work and look awsome

 

[99summitx]

id go with mcb performance pistions....... my 2 ringers with caged bearings, and gaskets were 299.00 usd...... and they work and look awsome

That's good to hear we just ordered a set and mono block from him for $1050 includes $300 core on block.