180-3700.jpg
180-3700.jpg

Oldsmobile 330-455 7/16" 12pt Head Bolt Kit

$102.95

Oldsmobile 330-455 7/16" 12pt head bolt kit. Note; These head bolts are a MUST when using Edelbrock or SpeedMaster aluminum heads on your Oldsmobile engine.

  • Thread Size: 7/16-20 in.

  • Head Style: 12-point, allowing you to easily re-torque heads, allows you to clear large diameter valve springs without needing to remove the valvetrain.

  • Material: 8740 Chromoly steel with a black oxide finish

  • Tensile Strength: Rated at 180,000 to 190,000 psi (15% stronger than standard grade 8 hardware)

  • Included Components: Complete set of bolts and hardened parallel-ground washers

  • Application: Ideal for heavy street use, restoration projects, and performance engine builds where dependable clamping force is required.

Oldsmobile 330-455 7/16" 12pt head bolt kit. Note; These head bolts are a MUST when using Edelbrock or SpeedMaster aluminum heads on your Oldsmobile engine.

  • Thread Size: 7/16-20 in.

  • Head Style: 12-point, allowing you to easily re-torque heads, allows you to clear large diameter valve springs without needing to remove the valvetrain.

  • Material: 8740 Chromoly steel with a black oxide finish

  • Tensile Strength: Rated at 180,000 to 190,000 psi (15% stronger than standard grade 8 hardware)

  • Included Components: Complete set of bolts and hardened parallel-ground washers

  • Application: Ideal for heavy street use, restoration projects, and performance engine builds where dependable clamping force is required.