Quote:
Originally Posted by PAUL K
This is an Internet rumor that most likely came from a Q&A in the back of a magazine that just isn't true.
We have sleeved all eight cylinders in a handful of Pontiac blocks and never had an issue. H-O Racing sleeved all eight cylinders in the 1974 Super StockTrans Am engine and set many records with that engine. They felt it was one of the "secrets" that gave the TA a competitive edge.
My "guess" it that answer from the magazine may have been intended to prevent folks from thinking you can sleeve all eight cylinders and go much larger piston like a 4.25.... That would not be a good idea.
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Paul, I agree with one caveat: it depends on the skills of the machinist performing the work. Most “production” shops don’t have the necessary tooling or experience to successfully install eight sleeves.