spiral or ring type piston pin retainers

[gmonde]

Originally Posted by Rich Biebel

Single or double spiral locks have been the std. for many years.

There is NO way I am going to use something different. I'm Not going to use a round ring type lock no matter what the piston manufacturer says.

I've never had a spiral lock come out and I've built a lot of engines...

The old snap ring type occasionally would break a piece off but never came out either....

I'd send them back and either redone for std spiral locks or replaced....

After seeing the destroyed engine on here on another thread and the replacement pistons with spiral locks....there's your answer...

yeah I agree,, I will see how much push back I get ,, if I get to much it will be posted here

[ss3011]

Round wire clips work well , and are OEM on most production engines currently . Be aware that the wrist pins used on pistons with round wire clips are chamfered specifically for these clips .