I have recently got myself some oversize pistons for the zx, but they have no rings on them. they are .02 oversize. can anyone please advise on the correct size rings to get for these and the correct size rebore required for the block so i can finally get my car back on the road again.

 

thanks

You will need matching rings for them from the same supplier as the pistons.

The block will then be bored to the correct size for the piston . You need to take the pistons with the block to the machine shop. The exact clearance is determined by the end use of the engine.

I got the pistons off andy duff but he doesnt know where there were from. he just said there was from a engine he had and the original rings were no good and he didnt have them.

I think there are same spec as standard but just oversize in width.

I got the pistons off andy duff but he doesnt know where there were from. he just said there was from a engine he had and the original rings were no good and he didnt have them.

I think there are same spec as standard but just oversize in width.

 

:confused::confused::confused:

 

So are they used pistons then???

Are they cast?? Or forged???

All the info I have posted still stands regardless of where you got them from

However if the original(unknown) rings were no good then how do you know the pistons are any good??

Have you checked them for ovality??

Have you examined each ring land for damage.

Piston rings are specific to their piston. Mix n match just wont work.You need the correct ring. And to get the correct ring you need to know who made the piston.