Re:3906628 Oil Pump? What BB Chevy Engine used on?
my parts manual shows part number 3906628 is the oil pump cover for 67-69 all 396/427 except special high performance, 3906627 is identified as the special hp cover for 65-68 pass 396/427 except hp, 65-69 chevy, chevelle, camaro with special high performance 396 and 69 pass with special high performance 427. the pump assy is 3904827 for 66-69 396/427 except special high performance and 3904826 for 65 pass with special high performance 396/427, 66 chevelle 396, and 66-69 special high performance 427.
reference is Chevrolet passenger, chevelle, nova, camaro parts catalog revision number 2 effective april 1970. pages 1-45 and 1-46 sections 1.652 and 1.723. image on page 1-1p
hope this helps, andy
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Andy
Team Chevelle #3135
ACES #08305
1969 Chevelle Trim Tag Research (On-going)
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