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Stage 8 8911 Locking Header Bolt Kit for Small Block Chevy

(Audi S4 2000-03, A4 Quattro 1997-2000, 2002-13, A6 Quattro 2000-03, 2005-08, 2012-13, Q5 2009-10, 4000 1979-87; GMC G2500 1979-95 + 187 more models)

Part of: Stage 8 Locking Header Bolt Kit

Other options in this family: Stage 8 8910A Stage 8 8913 Stage 8 8912A Stage 8 8914 Stage 8 8915

Manufacturer

Picture for manufacturer Stage 8

Part Number

8911
9 reviews
Sale Price

$67.86

In Stock (10+)

delivery box

Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Stage 8 8911 Locking Header Bolt Kit is specifically engineered for Small Block Chevrolet applications, providing a reliable solution to prevent header bolts from loosening due to extreme heat and vibration. This complete kit eliminates the common problem of exhaust leaks caused by loose header fasteners.

Key Features:

  • Patented locking mechanism uses retaining clips to secure bolts in place
  • Prevents fastener loosening from thermal expansion and engine vibration
  • Complete bolt kit designed for Small Block Chevy header applications
  • High-temperature resistant design withstands exhaust system heat cycling
  • Reusable locking system allows for multiple installations
  • Professional-grade fasteners ensure long-lasting header seal integrity

Stage 8 locking fasteners utilize a unique retaining clip design that locks onto the bolt head, preventing rotation without thread distortion. This kit includes all necessary bolts and locking hardware for a complete Small Block Chevrolet header installation, making it ideal for performance applications where reliability is critical.

Products specifications

Fits

Audi S4 2000-03, A4 Quattro 1997-2000, 2002-13, A6 Quattro 2000-03, 2005-08, 2012-13, Q5 2009-10, 4000 1979-87; GMC G2500 1979-95, K1500 1979-99, C1500 1979-99, K2500 1979-2000, Jimmy 1970-91, Savana 2500 1996-2002 + 182 more models

Fastener Finish

Nickel plated

Fastener Material

Steel

Fastener Style

Bolt

Head Style

Double hex head

Quantity

Sold as a set of 12.

Thread Size

3/8-16 in.

Underhead Length (in)

0.750 in.

Quick, fast and easy. Ty

Nice fast shipping no more then a week to receive

Prompt service

Quick and easy

Happy with my purchase and the time it took to get it to me was was very reasonable, I would order through autoplicotiy again

Very simple and easy... Great prices

easy. i like the amazon link at check out.

Awsome service and prices,Thanks alot

Hard to,find these anywhere. Keep selling them!

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