Description
Product Overview
The Pirate Mfg fuel log is a precision‑machined billet aluminum component finished in a sleek black anodized coating. Designed specifically for Holley 4150 style carburetors, it aligns with a 7/8″‑20 fuel bowl fitting and matches a 9-5/16″ center‑to‑center spacing. The unit incorporates a 3/8″ NPT female inlet, a 1/8″ rear NPT fitting, and a 1/8″ NPT port for a fuel pressure gauge, which is supplied in white. Weighing just 2 pounds, the log provides robust durability without adding unnecessary mass, making it ideal for both street and track applications.
Usage
This fuel log is perfect for hot‑rod builders, race car teams, and DIY enthusiasts who demand accurate fuel metering. Install it on any Holley carburetor that uses the 4150 series bowl configuration, then connect the included gauge to monitor real‑time fuel pressure. The stanchions allow a secure attachment to the carburetor body, ensuring stable operation under high‑G conditions. 
Why Choose Us
Pirate Mfg combines aerospace‑grade aluminum with a hard‑coat anodized finish for superior corrosion resistance and heat dissipation. Each unit undergoes strict quality control, guaranteeing exact dimensions and leak‑free performance. The integrated gauge eliminates the need for aftermarket add‑ons, providing a complete solution right out of the box. Our reputation for precision engineering gives you confidence that the fuel system will perform reliably lap after lap.
Key Features
- Black anodized billet aluminum for strength and corrosion resistance
- Fits Holley 4150 style carbs with 7/8″‑20 bowl fitting
- 3/8″ NPT female inlet, 1/8″ rear NPT, and 1/8″ gauge port
- Includes white fuel pressure gauge and mounting stanchions
- Lightweight 2‑lb design for optimal performance balance
FAQ
What carburetor models are compatible?
The fuel log is engineered for Holley 4150 style carburetors that use a 7/8″‑20 fuel bowl fitting and have a 9-5/16″ center‑to‑center spacing.
Is the fuel pressure gauge calibrated?
Yes, the included gauge is factory‑calibrated to provide accurate pressure readings from 0 to 30 psi, suitable for most performance applications.
Can I install the log myself?
Absolutely. The package includes all necessary stanchions and fittings, and the installation process is detailed in the accompanying manual.
What material is used for the fuel log?
It is machined from billet aluminum and finished with a black anodized coating for durability and heat resistance.
Does the product come with a warranty?
Pirate Mfg offers a one‑year limited warranty covering manufacturing defects and material failures.




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