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Engines and Components› Engines, Blocks and Components

Howards Cams

BBC 454 Billet Main Caps

$319.48 $285.47 Save $34.01

SKU: H01J H454

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In Stock
Ships by Jun 7
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Non-Returnable Item
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Description

The Howards Cams H454 are Extreme Billet Main Caps for Chevrolet 2-Bolt to 4-Bolt 454 Main Journal conversion. They are precision CNC machined from superior quality low carbon 1020 billet material, available as stock replacement or with splayed outer bolt holes. This set consists of the center 3 caps, but front and rear caps are also available. Drill bushings are included with caps requiring them, and they feature side notches for easy removal. Line boring is required after installation. The product is 100% manufactured in the U.S.A.

Fitment

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Specifications

BrandHowards Cams
Part NumberH01J H454

Videos

Camshaft 4/7 Firing Order Swap Explained

Camshaft 4/7 Firing Order Swap Explained
Quick Cam degree

Quick Cam degree

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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