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#1
08-30-2019, 05:10 PM
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How many people encountered a Pontiac V-8 with broken lifter bosses, prior to encountering Pontiac's style, etc.?
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1970 Lucerne Blue Firebird Trans Am, deluxe blue interior. Original Ram Air III, M-21, 3.73. Being built as a 4" stroke "434" with SR 614 Ram Air IV heads 1972+ Lucerne Blue 4-door hardtop "what if" T-41 Le Mans Sport GT/Grand Am concepts. Equipped with future 3" journal "455 HO"/"what if" prototype "SD 455". What if GM had continued production of the 1970-72 GM A body somewhere in the southern hemisphere? |
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#2
08-30-2019, 08:43 PM
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Quote:
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.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
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