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Thread: Echlin VC-1765 Advance for Tach Drive Distributor

  1. #1
    Member fine69's Avatar
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    Default Echlin VC-1765 Advance for Tach Drive Distributor

    I'm finally getting around to restoring my tach drive distributor.

    I recall in a previous post JohnZ and BarryK described the Echlin VC-1765 vacuum advance can.

    This unit starts to advance at 5-7" of vacuum and pegs out at 11-13" of vacuum. This is about 2" below the vacuum that my motor is producing - and should add 16º of advance at max. This should work just right with my cam.

    I picked one up today at NAPA, got home and noticed although the box is labeled VC1765, the mounting bracket is stamped, "B26". I believe this is supposed to be stamped "B20". Can someone confirm, please?

    Thanks.

    Ralph
    1969 Corvette Convertible (build date December 14, 1968), L-36 427, 390 hp (3963512 block; 3964290 heads), Muncie M-21, Monza Red, Black Top & Black Interior. VB&P Gymkhana 550 lbs/inch coil springs, Bilstein Sport shocks. In progress... full body-off restoration.

    1972 Camaro Z-28, Rally Sport, L-46 350/350, M-21, 3.73:1 Rear, Cranberry Red/Black Stripes. Edelbrock Performer RPM intake; Performer RPM aluminum heads; Sealed Power Performance camshaft (dur 220/231, Lobe Sep 110, Lift .468/.480).

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    Default

    Quote Originally Posted by fine69 View Post
    I'm finally getting around to restoring my tach drive distributor.

    I recall in a previous post JohnZ and BarryK described the Echlin VC-1765 vacuum advance can.

    This unit starts to advance at 5-7" of vacuum and pegs out at 11-13" of vacuum. This is about 2" below the vacuum that my motor is producing - and should add 16º of advance at max. This should work just right with my cam.

    I picked one up today at NAPA, got home and noticed although the box is labeled VC1765, the mounting bracket is stamped, "B26". I believe this is supposed to be stamped "B20". Can someone confirm, please?

    Thanks.

    Ralph
    That "B26" (which is a VC-1808) has exactly the same specs as the "B20" (VC-1765); it'll work fine.

  3. #3
    Member fine69's Avatar
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    Default

    Quote Originally Posted by JohnZ View Post
    That "B26" (which is a VC-1808) has exactly the same specs as the "B20" (VC-1765); it'll work fine.
    Thank you John.

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