Quote:
Originally Posted by Douglas Willinger
How many people encountered a Pontiac V-8 with broken lifter bosses, prior to encountering Pontiac's style, etc.?
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If I understand your question correctly, I started playing with Pontiacs in 1965.
I first encountered a Broken Lifter Boss with Jim Brady, (a former Pontiac 64 GTO Racer) when he decided to get aggressive on the camshaft .200 lift vs duration specs on his Roller Camshaft.
Prior to that he had a Roy McKenny selected Comp Cams profile and the engine made great power with durability.
He put this other camshaft in at the recommendation of one of the Tech Guys and broke the lifter boss off the block shortly after the installation.
He got another block and had the Butler Lifter Bore "Plates" brazed into the block. No more issues after that work was done. Different Camshaft and lifter profile though. LOL!
Tom V.