Engines and Components› Cylinder Heads and Components

GM Performance

BOLT KIT BB CHEV HEAD

$132.83

SKU: G03V 12367779

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Description

The Chevrolet Performance head bolt kit is a premium grade material GM head bolt for Big Block Chevrolet's. This unique kit fits both Mark4 and Mark5 blocks with either cast iron or aluminum heads. The kit includes eight extra-length bolts for performance aluminum heads applications from Chevrolet, Dart, and Brodix when required.

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

BrandGM Performance
Part NumberG03V 12367779

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.

View Full Return Policy