Posted By: GTSDart340
71 413 rings - 03/30/10 01:25 AM
so... i have a interesting question. i have a 71 413-HT. i need to pull a couple of pistons out to clean out the bore. my only problem is the rings. i dont want to re-ring the whole engine, just the two pistons i need to remove. my brother has rings that are the right diamater, the only problem is that they are about 1/64th too thin. is that going to be a problem, or can i get away with using those rings? thanks for the help!!
Posted By: dOc !
Re: 71 413 rings - 03/30/10 03:27 AM
ONE 64ths ? ... that is almost 2 thou. When you put a ring in a piston ... what is the clearance spec?
Are these the dished truck pistons?
Posted By: GTSDart340
Re: 71 413 rings - 03/30/10 03:31 AM
these are just the stock pistons.
Posted By: dOc !
Re: 71 413 rings - 03/30/10 06:17 AM
So they ARE dished? ...what is the ring groove clearance with the diff rings?
Posted By: RapidRobert
Re: 71 413 rings - 03/30/10 01:59 PM
Gap or side clearance? If side clearance a 5/64" (.078") std width Mopar ring. 1/64 smaller would make an additional 15&1/2 thou side clearance on top of the several thou there now which would be way out of spec. For a low buck deal I'd try it. It wouldn't seal as good and I'm sure the up/down play would shorten the life of the rings/piston
Posted By: GTSDart340
Re: 71 413 rings - 04/01/10 02:53 AM
i dont have the engine apart yet.. i dont want to tear it apart unless i know if these rings will work. im trying to low budget this engine, and then if it doesnt work i will rebuild it at a later date. im eventually going to turbo it (after it gets rebuilt of course!), but cant afford to buy a complete set of rings now. the clearance im talking about is side clearance. as in how thick the ring is. thanks!!