Stage 8 Locking Header Bolt Kit-12) M8-1.25 x 25mm Bolts and Locking Hardware. GM LS Engines. Bolt Kits are included in most Header kits. This part number should only be ordered as a replacment for damaged or lost bolt kits.
Kooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best headers and complete exhaust systems for your street, race and off-road applications. We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations. Now with three generations of family leadership, we are proud to say that all of our products are handcrafted here in the USA and we are proud to still be independently owned and operated. And don't forget, "Get Kookin with KOOKS!"
  • 100 Percent Manufactured In The USA
  • Kooks Headers And Exhaust Make The Most Power In The Industry
  • Kooks Products Are Made Of T304 Air Craft Quality Steel
  • Kooks System Are Specifically Designed For Maximum Power
  • Limited Lifetime Warranty To Original Purchaser
  • Every Kooks Product Is Dyno And Race Tested
  • Kooks Products Fit And Install The Best
  • 3 Generations Being Family Owned And Operated

Application Summary:

Year Make/Model
1973-1974 Buick Apollo
1970-1972 Buick GS
1968-1969 Buick GS 350
1968-1969 Buick GS 400
1970-1972 Buick GS 455
1968-1972 Buick Skylark
1968-1972 Buick Sportwagon
2009-2015 Cadillac CTS
2002-2014 Cadillac Escalade
2003-2014 Cadillac Escalade ESV
2002-2013 Cadillac Escalade EXT
1967-1981 Chevrolet Camaro
1998-2002 Chevrolet Camaro
2010-2015 Chevrolet Camaro
2011-2017 Chevrolet Caprice
1968-1972 Chevrolet Chevelle
1968 Chevrolet Chevy II
1997-2013 Chevrolet Corvette
1968-1972 Chevrolet El Camino
1969-1974 Chevrolet Nova
1999-2013 Chevrolet Silverado 1500
2007 Chevrolet Silverado 1500 Classic
2003 Chevrolet Silverado 1500 HD
2005-2006 Chevrolet Silverado 1500 HD
2007 Chevrolet Silverado 1500 HD Classic
2014-2017 Chevrolet SS
2000-2014 Chevrolet Suburban 1500
2000-2014 Chevrolet Tahoe
1999-2013 GMC Sierra 1500
2007 GMC Sierra 1500 Classic
2001-2003 GMC Sierra 1500 HD
2005-2006 GMC Sierra 1500 HD
2007 GMC Sierra 1500 HD Classic
1971-1977 GMC Sprint
2000-2014 GMC Yukon
2000-2014 GMC Yukon XL 1500
2007-2018 Jeep Wrangler
2018 Jeep Wrangler JK
1968-1971 Oldsmobile 442
1968-1972 Oldsmobile Cutlass
1973-1974 Oldsmobile Omega
1968-1972 Oldsmobile Vista Cruiser
1969-1981 Pontiac Firebird
1998-2002 Pontiac Firebird
2008-2009 Pontiac G8
1968-1972 Pontiac GTO
2004-2006 Pontiac GTO
1968-1972 Pontiac LeMans
1968-1970 Pontiac Tempest
1971-1974 Pontiac Ventura

Additional Information:

Fast Efficient Shipping

Through our distribution network Deliveries can be as fast as Next Day Delivery.
Delivery times vary by destination, tracking information is provided with every purchase.

Get it Installed

JB's Power Centre offers on-site professional installation services in Calgary and Edmonton, AB.
We have on staff licensed Mechanical Technicians as well as MECP Certified 12-Volt Technicians.

* Extend your products Manufacturer Warranty

All products include a manufacturer warranty, but you can extend this warranty with
JB's Purchase Protection Plan
*Available on select products.