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Difference Between AQ225A, AQ225B, AQ225C and AZ225D-gctid389498

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    Difference Between AQ225A, AQ225B, AQ225C and AZ225D-gctid389498

    Can anyone tell be the difference between these four engine designation? I ran the block numbers and found my engine is a 1979 305 Chevy in a 1978 Saratoga. It has a Quadrajet carb.

    #2
    I presume that the Z is a typo!

    Go here, and look at the different model numbers.

    NOTE: the AQ200B and AQ225B are quite different from A, C and D.

    The B uses the belt driven Sherwood sea water pump, and uses 3" exhaust, with a single exhaust relief.

    Many of these used the B/W flywheel cover and the V/P PDS adapter housing.
    Rick E. Gresham, Oregon
    2850 Bounty Sedan Flybridge model
    Twin 280 HP 5.7's w/ Closed Cooling
    Volvo Penta DuoProp Drives
    Kohler 4 CZ Gen Set

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