Brand

• Mr Gasket
• Spectre Performance

Engine Make/Size

• American Motors Inline 6-Cylinder
• American Motors V8
• Chevrolet 90 Deg V6
• Chevrolet Big Block Mark IV
• Chevrolet Small Block Gen I
• Chevrolet Small Block Gen II (LT Based)
• Ford Small Block Windsor
• Pontiac V8
• Ford Big Block
• Ford Small Block

Head Thickness

• 0.190 in.
• 0.240 in.

Overall Length

• 1.000 in.
• 0.969 in.

Thread Size

• 0.4375- 20
• 0.50-20
• 7/16-20