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  • Part Number: 1004
  • Warranty: 1 YR
  • Notes: Performance
    For high performance engines only. Cast iron or aluminum head. Steel core laminate. Pre flattened steel wire combustion seal. 4.190" bore. 0.041" thickness. Volume: 9.2cc. Can be used on 400 race engines. Can be used on aluminum blocks with liners. Minimal brinelling of aluminum head.
  • Part Number: 1003
  • Warranty: 1 YR
  • Notes: Performance
    For high performance engines only. Cast iron or aluminum head. Steel core laminate. Pre flattened steel wire combustion seal. 4.166" bore. 0.041" thickness. Volume: 9.1cc. Can be used on 400 race engines. Up to 4.155" maximum bore with minimal chamfer. Can be used on aluminum blocks with liners. Minimal brinelling of aluminum head.
  • Part Number: 1010
  • Warranty: 1 YR
  • Notes: Performance
    For high performance engines only. Steel core laminate. Pre flattened copper wire combustion seal. 4.166" bore. 0.039" thickness. Volume: 8.9cc. Can be used on 400 race engines. Up to 4.155" maximum bore with minimal chamfer. Can be used on aluminum blocks with liners. No brinelling of aluminum head.
  •  | Page 1 of 1 |  

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