1970 Polara

Hey guys, I'm building a 440 for my Polara, I ordered this set of pistons:http://www.summitracing.com/parts/sl...5f/application .030 over and this set of rings: http://www.summitracing.com/parts/sl...0/applications. My question is what do I do for ring gap?

Thanks in advance for all input. Bill

TVLynn

There should be info with the rings as to the required ring gap Or look it up on their web site
says standard ring gaps look in the service manual. don't have one handy

Coronet 500

Good stuff here: http://www.wiseco.com/PDFs/Manuals/RingEndGap.pdf

moe7404

this may not what fit your application but it is out a 1967 cnrysler factory paper service manual. 440 Ring Gap compression .013"-.023". Oil -Steel Rails .015"-.055" i am not up on even if steel rails are still used. hope this helps.

440roadrunner

You need to go by what the piston / ring manufacturer says, as some designs (I'm not into some of this newer stuff) are different than what the shop manual may have originally said

RacerHog

You have to go by what pistons you buy.... The MFG. will have a finished bore size for there pistons... Then you can set the ring gap by there information...

bremereric

Racerhog is correct. The piston to wall clearance and piston ring gap information will come with the pistons.

1970 Polara

Thanks guys, I'll check that out, said nothing about end gap in the piston box though.