Author Topic: Head gaskets  (Read 179 times)

0 Members and 1 Guest are viewing this topic.

c9zx

  • Full Member
  • ***
  • Posts: 110
    • View Profile
Head gaskets
« on: October 22, 2025, 03:16:46 PM »
462 with TFS heads, about 10.3:1 SCR. Is there an appropriate gasket, .030-.041 thick compressed, block bore will be +.030, that minimizes gasket volume? How much larger than the block bore size does the gasket bore need to be? Thanks, Chuck (S)
1969 Eliminator G code
CSX-7031 FIA Cobra
2007 Mustang GT, Whipple
1966 Cyclone GT

475fetoploader

  • Sr. Member
  • ****
  • Posts: 448
    • View Profile
Re: Head gaskets
« Reply #1 on: October 22, 2025, 11:00:10 PM »
I built one like that with a cometic gasket not too long ago. I believe Cometic recommends.030 to .060 larger gasket bore, than block bore. I’ve seen plenty of instances slightly less than this. Cometic has plenty of variations to accommodate many combinations. I know they make a 4.165 gasket bore, and a 4.250 bore gasket. Anywhere between .027 and .120 in close increments. This is just one gasket option, not financial advice.
1967  Fairlane Tunnel Wedge on Proports.
1975 4x4 461 f.e. 4speed on 38’s
Love many, Trust few. Always paddle your own canoe.