High-Strength Head Bolt Kit for Big Block Chevy w/Bowtie, Dart, Merlin, Pro Top, World Product's Cylinder Heads [12-Point Head]

Name: High-Strength Head Bolt Kit for Big Block Chevy w/Bowtie, Dart, Merlin, Pro Top, World Product's Cylinder Heads [12-Point Head]
Brand: JEGS
SKU: 555-83529
Price: 121.99 USD
Availability: InStock

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Big Block Chevy

High-Strength Head Bolt Kit

Big Block Chevy w/Bowtie, Dart, Merlin, Pro Top, World Products Cylinder Heads

12-Point Head

Chromoly

Black Oxide

Sold as a Kit

JEGS 555-83529 High-Strength Head Bolts Includes:

(8) 7/16 in.-14 x 5.182 in. UHL (Under Head Length) w/12-point head
(16) 7/16 in.-14 x 4.198 in. UHL (Under Head Length) w/12-point head
(8) 7/16 in.-14 x 2.090 in. UHL (Under Head Length) w/12-point head
(32) 7/16 in. I.D. Heat Treated Washers with Internal Bevel
(1) Anti-Seize Thread Lubricant

JEGS 555-83529 High-Strength Head Bolts Features:

Fits Big Block Chevy engines including 396, 402, 727, 454 and others based on the popular platform
The perfect upgrade when replacing head bolts
Specifications: 7/16-14 thread w/12-point head
Wrench Size: 1/2 in.
190,000 psi yield strength chromoly alloy steel, which is approximately 15% stronger than Grade 8

JEGS 555-83529 High-Strength Head Bolts Note:

These bolts are re-usable (not Torque-To-Yield)

Premium Head Bolt Kits for a Performance Upgrade

JEGS Premium head bolts are available with a reduced hex size (1/2" compared to stock 5/8") with a wide area head flange that eliminates valve train removal to aid in re-torquing of the cylinder heads. All High Performance Series bolts are 170,000 psi chromoly alloy steel, which is approximately 15% stronger than Grade 8. Each bolt is then finished with the distinctive JEGS J-Crown. Kits come complete with hardened double disc ground and chamfered 4130 heat-treated steel washers (also available separately). Head bolts and washers are coated with black oxide for durability. Bolts sold in complete engine sets.

Part TypeCylinder Head Bolts and Studs

Product LineJEGS High-Strength Head Bolt Kits

BrandJEGS

Package Height5.2

Package Width5.25

Package Length6.85

Weight6.03 PG

Part CategoryPerformance Parts

Washers IncludedYes

Fastener Nut Style12-point

Fastener Yield Strength (Psi)190,000 psi

QuantitySold as a kit