Piston Pin Length

Powerflite Posted 2020-05-08 12:42 AM (#597931) Subject: Piston Pin Length Expert 5K+ Posts: 9670 Location: So. Cal I would like to replace the piston pins on my OEM 392 hemi pistons. The originals are about 0.003" longer than the new ones. Is that a problem? I don't know what the tolerance is on the length or what issues could arise from it being a little short. 58coupe Posted 2020-05-08 11:27 AM (#597946 - in reply to #597931) Subject: Re: Piston Pin Length Expert Posts: 1740 Location: Alaska These are full floating pins correct? As long as the the keepers (circlips?) fit in the grooves properly, I don't see any problem. Are you worried a bout a weight difference? Edited by 58coupe 2020-05-08 11:28 AM Powerflite Posted 2020-05-08 2:29 PM (#597955 - in reply to #597931) Subject: Re: Piston Pin Length Expert 5K+ Posts: 9670 Location: So. Cal Yes, full floating. I think they may have made them shorter because the new style clips are bigger at .071" wire diameter, whereas the old style clips are .06" wire diameter. I guess I could run all new clips, but I'm not sure they would be compatible with the old piston grooves. As long as I am running all new pins, any weight difference shouldn't matter. Edited by Powerflite 2020-05-08 2:32 PM