Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededCHEVROLET PERFORMANCEPART NUMBER: 809-12367779
Cylinder Head Bolt Kit Big Block Chevy
$13077
Ships on Sep 22, 2026
Lowest Price Guarantee
Cylinder Head Bolt Kit
- Cylinder Head Bolt Kit
- Big Block Chevy
- Hex Head
This high quality cylinder head bolt kit has enough bolts to install either iron or aluminum heads. This kit includes eight of 7/16-14 x 2.08" short bolts P/N 12367331, 24 of 7/16"-14 x 4.06" long bolts P/N 12367330, eight of 7/16-14 x 5.06" extra long bolts P/N 12367329, and 40 of special hardened washers P/N 14011040. For single service replacement use part numbers above. These bolts do not have thread sealer on them because 502 engines have blind bolt holes. For all other big block usage, add thread sealer.Technical Notes: When you complete your engine you will have left overs because this is a universal kit for both iron and aluminum heads.
Part TypeCylinder Head Bolt
BrandCHEVROLET PERFORMANCE
Package Height3.2
Package Width7.4
Package Length5.2
Weight7.45 PG
Part CategoryPerformance Parts
Head Tool Size (Mm)12.7
Thread Diameter11.11
Minimum Length34.54
Bolt Thread Maximum Diameter (In)0.4
MaterialsSteel Rockwell C 38
Bolt Length (In)4.2
Washer StyleFlat
Bolt Maximum Length (Mm)54.6
Washers IncludedYes
Thread Size (In.)7/16-14
Thread Length (In)1.36
Bolt Thread Diameter (Mm)11.1
Bolt FinishPhosphate
Thread Length (Mm)34.544
Fastener StyleBolt
Head Drive TypeHex Head Flanged
ColorBlack
Bolt Thread Maximum Diameter (Mm)11.1
QuantitySold as a kit
Fastener FinishBlack oxide
Bolt Grade11
MaterialSteel
Bolt Maximum Length (In)2.2
Thread TypeCoarse
Fastener MaterialChromoly
Undercut StudNo
Head Tool Size0.5
Bolt Length (Mm)106.7
Cut To FitNo
Part FitmentSemi Universal
Head StyleHex
Bolt Thread Diameter (In)0.4
Vendor Part Number12367779
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
ITEM YOU MAY ALSO CONSIDER
Some parts are not legal for use in California or other states with similar laws / regulations
