Rebuild or run high milage 4.8?
03-18-2017, 09:37 AM
#22
I'm going that route and picked up a set of Mahle rings from Summit for ~$40, PN 41859CP. It's a nice set with a Moly faced steel top ring, napier style second ring, and stainless oil rings. With the Moly faced rings, the Flex Hone rep I spoke with recommended the 320 grit, PN GB41832, which pretty much covers any bore size from the 4.8/5.3L to the LS7. Summit has them in stock for ~$56.
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Homer_Simpson (04-17-2023)
03-21-2017, 01:03 PM
#25
People think I'm absolutely crazy, but everytime I buy a truck that I intend to pull the engine out of, I let it warm up to temp. Then I get a very small vacuum line, hook it to the intake, put a bolt under the throttle cam to make it idle at 4 grand.....
and I drop that vacuum line into a full gallon jug of windshield washer fluid.
Takes a few minutes to suck it dry. Using a bore scope, the carbon buildup is significantly reduced. Compression tests almost always yield better results, which is a sign that it helps with stuck rings.
and I drop that vacuum line into a full gallon jug of windshield washer fluid.
Takes a few minutes to suck it dry. Using a bore scope, the carbon buildup is significantly reduced. Compression tests almost always yield better results, which is a sign that it helps with stuck rings.
