Moderate — 2–4 hours
Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Holley |
| Part Number | H00E 0-4778S |
Videos
Holley Four-Barrel 4150 and 4160 Carburetors Explained
How To Identify Your Holley & Demon Carburetor
Accelerator Pump Cam Selection And Installation On Holley Carbs
Holley 4150 Carburetor Rebuild
How to Install a Carburetor
Holley Set-Up and Adjust Step By Step
Temu Knock Off Holley Double Pumper Review - This One is BAD
Holley Carb Tuning Tips! | Engine Masters | MotorTrend
Overview of a Holley 4150 mechanical secondary carburetor, Double Pumper
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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