im thinking about swaping some p30 pistons into my b18c1, i recently changed the headgasket, and noticed that the cross stitch is still visible.

so if i swap out the pistons do i need a new hone or could i just put the pistons in there with new rings?

 

at the bare minimun hone the cylinders but they may be out of round depending on the milage of the engine.

 

dont mean to hijack the thread, but im gonna be install n a set of PR3 pistons in my LS block which has 89K on it. just do n a honing before i put the pistons in is all thats recommended right?

 

i mean if i absolutely have to i will, i konw its always better to do it, but im saying that the cross hatch is still visible and the engine only has around 50k on it...

 

i think you both should do it but your rings may not seal properly since the cylinders may be out of round.

 

absolute min. should be a hone unles this car has under 25k.

I had mine honed when I bought it with 40k on it. Better safe than sorry.

 

it looks like i'll be going .25mm over now anyway so i'll have to get one