Piston ring question

[rick1189]

I have two roller cam 5.0 engines. One came out of a 88 Mustang the other out of a grand marque. The mustang pistons have a bigger ring. If I was to re ring the Grand Marque engine what would I need to order. I thought all 302 pistons were the same when it came to ring thickness.

 

[thumper460]

what year GM?? If in doubt... remove one of the GM rings and mic them... or take the piston and ring to a machine shop and get their answer... the 302/5.0 do have different ring sets and ring grooves at different times of mfg...

The best way to to remove and ask a locl shop... there are too many variables for any one here being able to help...

just me........................................

Thumper