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Billet Aluminum Gilmer Belt Drive Pulley Kit for Chevy BBC 396 427 454 SWP/LWP

Alligator_819_x_200_px - Northline Parts

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$194.89
Sale price  $194.89 Regular price 

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I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Billet Aluminum Gilmer Belt Drive Pulley Kit for Chevy BBC 396 427 454 SWP/LWP

Upgrade your engine's performance and engine bay aesthetics with this premium Billet Aluminum Gilmer Belt Drive Pulley Kit. This high-quality aftermarket kit is engineered specifically for Chevy Big Block (BBC) engines, providing a reliable and stylish solution for enthusiasts seeking better power delivery. Designed to eliminate belt slippage while producing that iconic performance sound, this kit is the perfect addition to your 396, 427, or 454 setup.

Key Features & Benefits

  • Precision machined from high-grade billet aluminum for maximum durability and weight savings.
  • Toothed Gilmer-style belt design prevents slippage and ensures consistent timing under high RPMs.
  • Provides an aggressive, race-inspired look to your engine compartment.
  • Complete aftermarket replacement kit for a straightforward installation.
  • Designed to withstand high-performance operating conditions without stretching or snapping.

Compatible Models

  • Chevy Big Block (BBC) 396
  • Chevy Big Block (BBC) 427
  • Chevy Big Block (BBC) 454
  • Compatible with both Short Water Pump (SWP) and Long Water Pump (LWP) configurations

Product Specifications

  • Material: T6 Billet Aluminum
  • Belt Type: Heavy-Duty Gilmer (Cogged) Belt
  • Fitment Type: Performance Aftermarket
  • Engine Type: Chevrolet Big Block V8

Frequently Asked Questions

Is this an OEM part?
No, this is a premium aftermarket performance part designed to meet or exceed standard requirements for Big Block Chevy engines.

How do I confirm compatibility?
To ensure a perfect fit, please verify your engine displacement (396, 427, or 454) and confirm if your setup utilizes a Short or Long Water Pump as specified in the listing.


Important: This is a premium aftermarket part and is not manufactured by the original equipment manufacturer (OEM). Brand names and model numbers are used for reference purposes only. Compatibility may vary depending on the machine's serial number. Please verify fitment before purchase.

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Service was professional and easy to work with. They kept me updated on my order and recommended a different part when the one I originally picked wasn’t going to work. Everything showed up as expected and the process was smooth overall.

- Customer, Chris D.

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