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Thread: Holley 112-588 Throttle Shafts Upside Down?

  1. #1

    Default Holley 112-588 Throttle Shafts Upside Down?

    I was looking over the throttle body after receiving it and noticed the throttle shafts appear to be installed upside down. Are the heads for the screws supposed to be facing toward the bottom of the throttle body? Pictures:
    https://drive.google.com/file/d/12ES...ew?usp=sharing
    https://drive.google.com/file/d/15x6...ew?usp=sharing

  2. #2
    Join Date
    Jan 2010
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    That's the way they are. Only 2300/4150/4160 carbs with a separate throttle body are assembled from the top. Even 4010/4011 carbs are assembled from the bottom. Screws only go in one way. Gary
    Regards, Gary

  3. #3
    Join Date
    Dec 2009
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    Yes, and besides that, the throttle shafts are flat only on one side. The shaft ends wouldn't work the other way.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS T/W 11R 205 heads, 232°-244° duration/.623" lift/114° LSA camshaft, 12:1 C/R, TFS R-Series FTI ported intake, BBK 80mm T/B, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 200A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, -6AN fuel system plumbing, Walbro 255 LPH pump, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/3000 RPM converter, B&M Hammer shifter, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 M/T Street Comp tires.

  4. #4

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    Thanks, I was just a little concerned having only dealt with 4150 style carbs and Terminator throttle bodies before. I never really paid attention to that before.

  5. #5
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    You're welcome. Gary
    Regards, Gary

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