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NOS piston rings?
Posted by: Chilly Willy ()
Date: October 11, 2017 05:05AM

GM 3970514
Going through the shed. Pulled these out. Anyone else have a set or info?



Will
Northern California

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Re: NOS piston rings?
Posted by: steve c goodman ()
Date: October 11, 2017 05:35AM

64-9 except H/P and turbo. Std bore dia

best wishes, Steve
Rear Engine Spec. Inc. Golden, Colo.

1962 spyder 3.0L turbo 1965 Crown V8
1967 monza 110/4 1968 monza 110/4
1971 amante gt 110/4
CORSA/RMC/PPCC

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Re: NOS piston rings?
Posted by: Chilly Willy ()
Date: October 11, 2017 06:54AM

Thanks Steve👍
Another thing I noticed, on my few sets of cylinders. there is little to no ridges. Seems every water cooled engine I’ve worked on had some wear. Either I just have low mileage cylinders or the rings a more sacrificial on the Corvair.?



Will
Northern California

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Re: NOS piston rings?
Posted by: steve c goodman ()
Date: October 11, 2017 07:51AM

Low milage = less ridge and higher the milage the more ridge/wear is present. Only way to really judge diameter is with measuring both round and taper.

best wishes, Steve
Rear Engine Spec. Inc. Golden, Colo.

1962 spyder 3.0L turbo 1965 Crown V8
1967 monza 110/4 1968 monza 110/4
1971 amante gt 110/4
CORSA/RMC/PPCC

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Re: NOS piston rings?
Posted by: Chilly Willy ()
Date: October 11, 2017 08:04AM

steve c goodman Wrote:
-------------------------------------------------------
> Low milage = less ridge and higher the milage the
> more ridge/wear is present. Only way to really
> judge diameter is with measuring both round and
> taper.

Yes, I’ll check for taper. I’m looking at all of my parts. I’m thinking a good winter project is to build a runner from parts on hand. Just add a gasket set and bearings 👍



Will
Northern California

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Re: NOS piston rings?
Posted by: steve c goodman ()
Date: October 11, 2017 08:08AM

Some of the 'build from available parts' engines are the best runners too.

best wishes, Steve
Rear Engine Spec. Inc. Golden, Colo.

1962 spyder 3.0L turbo 1965 Crown V8
1967 monza 110/4 1968 monza 110/4
1971 amante gt 110/4
CORSA/RMC/PPCC

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Re: NOS piston rings?
Posted by: Chilly Willy ()
Date: October 11, 2017 08:12AM

Yep.

When you think about it, new parts are used after the first start up. 😉



Will
Northern California

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Re: NOS piston rings?
Posted by: vairmech ()
Date: October 11, 2017 11:39AM

I have a set or two of NOS rings,let me see what they are. I remember at least one set being Moly.

Ken Hand
Handy Car Care
248 613 8586

Vairmech@aol.com

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