Cam Quandary
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Said to improve the manufacturing process, Pontiac relocated the identification stamp from the front to the rear and added color codes to all its camshafts in September 1975. The T/A 6.6 units were no exception. On the left is a No. 112 '77 automatic transmission cam; a No. 431 '77 manual transmission cam is in the center; and a No. 402 '78-'79 camshaft is on the right. View Related Article
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