Air and Fuel› Fuel Pumps, Regulators and Components

ENGINEQUEST

Mechanical Fuel Pump Conversion Jig

$1,559.09

SKU: EQ-CJ305

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The EngineQuest CJ305 is a conversion jig designed for Chevrolet Small Block V8 engines. It allows for the drilling of mechanical fuel pump rod holes in blocks that were originally manufactured with electric fuel pumps. The kit includes all necessary drill bits and reamers. All tooling is non-returnable.
Show original supplier description
The EngineQuest CJ305 is a specialized conversion jig engineered for Chevrolet Small Block V8 engines. This tool facilitates the precise drilling and tapping of mounting holes required to install a mechanical fuel pump on engine blocks originally equipped with electric fuel pumps. This is particularly useful for engine rebuilders looking to retrofit older or modified engines. The kit comes complete with all the necessary drill bits and reamers required for the conversion process, ensuring that you have the tools needed for the job. The CJ305 is designed for V8 engines, specifically mentioning compatibility with 5.0L and 5.7L displacement variants. Engine blocks manufactured by Chevrolet are the intended application. Please note that all tooling included in this kit is non-returnable. Ensure correct application before purchase. This jig is essential for mechanics and engine builders who need to adapt Chevrolet V8 blocks for mechanical fuel pump setups.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandENGINEQUEST
Part NumberEQ-CJ305
CategoryAir and Fuel

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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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