Piston Ring Selection
09-04-2012, 03:02 PM
#1
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Piston Ring Selection Can anyone recommend a set of rings for a 3.905 bore? The machinist power honing an LS1 block for me to 3.905" recommends a ring set with a "Napier" type second ring and not a "barrel" faced type (Mahle) a "hook" style ring over a standard style for...get this, better oil control. I never new compression rings could help oil control so this is news. According to the machinist, GM recommended the Napier ring to help with pre mature oil burning. I am going to use JE fordged pistons in this app. Anyone have any info/experience with this? Thanks. 
09-04-2012, 03:06 PM
#2
You can Google search the benefits of the napier cut! What thicknesses do you need on these rings?
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Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
09-04-2012, 05:38 PM
#3
Mahle makes a very affordable steel top w/ napier second ring set in a 1.5/1.5/3.0 size. The napier second ring was one of the improvements made on the 405hp 2002 LS6. Generally you have a barrel top and a reverse taper second. The napier replaces the reverse twist to improve oil control and reduce friction.
09-09-2012, 02:19 PM
#4
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Mahle makes a very affordable steel top w/ napier second ring set in a 1.5/1.5/3.0 size. The napier second ring was one of the improvements made on the 405hp 2002 LS6. Generally you have a barrel top and a reverse taper second. The napier replaces the reverse twist to improve oil control and reduce friction.
