Piston ring tech help!!!
 

I need a little help here

I am building a 9.5 to 1 383 that howell efi is setting up the efi to run on the street and hopefully for along time. I bought a eagle rotating kit and i think the rings it came with are not so great? Part number 40564cp.030
This is not a race car, just something that should make a reliable 300 hp. What i have now started wondering is what type of ring would be the best to put in....

Is there only one material type referd to as moly?
A chrome top ring?
Is there a Chromoly ring also?
Cast iron?

Thanks! Keith

moly rings are what you may want to use

That looks like a Perfect Circle part number. If so, those are moly rings. Moly ring part numbers start with a 4 and cast ring numbers start with a 5.

TS1955

That is a perfect circle part number.... but they sell for like 40 bucks at summit... so surely the are not a good moly ring? Or maybe im wrong?

Top Ring Material Cast iron
Top Ring Facing Material Chrome
Second Ring Material Cast iron
Second Ring Facing Material Cast iron
Oil Ring Material Stainless steel

http://www.summitracing.com/parts/PCR-40564CP-030/

that is what summit list them as????????

Use them or not?

Sounds like a conventional moly ring set if they were only $40.

For more dough you can upgrade to some plasma moly rings.
They are around $100-$150 at most parts houses.
Thats what I use on any performance build.


Speed pro, Childs and Albert etc...

Okay, does no one know tech about rings?

This is the best place to get ring tech: http://www.totalseal.com/TechPage.aspx

They are also very good people to talk to on the phone. If you don't see the info you want on their page, call them.

rings
 

no such thing as CHORME moly rings Only moly rings . summits moly rings plenty good for a street motor as long as the machine shop did its job right. The only reason for moly rings is breakin time is almost none a chome ring takes some time to seat and seal in the ld days you were supposed to drive the car a certain way for 500 mile. now with moly you can fire it up run it at about 2500 rpm till its get to operating temp cool it down. it should be good to go