Engines and Components› Cylinder Heads and Components

GM Performance

(S)BOLT

$22.73

SKU: G03V 11588291

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In Stock
Ships by Jun 19
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The GM Performance 11588291 is an engine cylinder head bolt designed for V8 engines. It features an M11x2.0x155mm thread size and is compatible with the Chevy Small Block Gen III/IV LS V8 Gas engine family.

This bolt is specified as a single-use fastener. For the 2nd design, a different part number (11519772) is recommended. The application notes indicate that 16 of the 11588291 bolts are used along with 4 of the 12560745 bolts for certain configurations.

Fitment

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Specifications

BrandGM Performance
Part NumberG03V 11588291

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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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