The crank pulley appears to be the correct, '69 up, part, but the water pump number comes up as a bb part. I haven't seen it listed as interchanging with an sb. Could be the pump pulley is too far out to align with the crank groove.
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Mitch
1970 Chevelle SS
1966 Chevelle SS
1967 Camaro ss/rs
1938 Business coupe, street rod
2000 FXSTS, original owner, 13k miles
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