Trying to ID fuel pump I have. Stamped 40170, rebuildable type, magnesium top w/AC cast in ,4 screw dichromate plated steel bottom. No luck in archives or parts books. 66 big block? Thanks in advance Chuck M.
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Re: Fuel Pump ID
40170 shows up as "Daytona Marine" in the '69 AC catalog. Not a Corvette part, nor passenger car.Bill Clupper #618 -
Re: Fuel Pump ID
Thanks Bill, This seems to be an uncommon pump.I found a sold 40710 replacement type pump on Ebay that claims L-88,ZR-1, 396 and copo usage. part#6475748 Don't understand description- Daytona and Marine togeather? Chuck M.Comment
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Re: Fuel Pump ID
Chuck-----
I get very conflicting information on this one. In an AC reference, I find that AC type 40170 is applicable to some 1965-66 396 and 427 engines used in passenger cars and Chevelles. However, GM parts references do not confirm this. According to GM, AC type 40193, aka GM #6415961, was used for these applications. The latter is a CRIMPED-type pump, NOT a screw type. As far as I know, a CRIMPED-type pump is the only type ever used on a big block in PRODUCTION, although it's possible that some very early big blocks (i.e. 65-66) did use a screw-type pump. In any event, NO Corvette big block ever used a screw-type pump; all were CRIMPED-style.
Next, GM #6475748 is a non-existent part number. The part number is GM #6415748. That part number= AC type 40170. However, I cannot find that the GM #6415748 was ever used in PRODUCTION for any application. From what I can find, it is a SERVICE-only, screw-type, "high capacity", big block fuel pump. It was available in SERVICE until a few years ago. It could be used on an L-88 or other high performance big block but, as far as I can tell, it was never installed in PRODUCTION on any such engine.In Appreciation of John HinckleyComment
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