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Water Pump Bolts

509 2
Anybody know the sizes, grade of bolts, for a 1966 289 Coupe with P/S. I have Bob Mannel's book, but I left it at the inlaws 200 miles away. The bolts on the car are all mismatched and 2 missing. TIA.

1966 Red Conv (200)
1966 White Pony Int.(289)A Code
1966 Coupe (289) C Code
MCA 36048