Author Topic: 426 Hemi Valve cover Gasket Recommendations  (Read 2021 times)

Offline Iron_Cuda71

  • Jr. Member
  • **
  • Posts: 3
426 Hemi Valve cover Gasket Recommendations
« on: August 07, 2020 - 10:47:13 AM »
I recently bought a 71 cuda with a 426 hemi crate engine. It has the 66-69 model valve covers on it currently, i just picked up a set of aftermarket 70-71 valve covers (Steel). What brand valve cover gasket do you recommend. I plan on going with 3m weatherstrip gasket on the valve cover side only as well.
thanks




Offline 70chall440

  • Sr. Resident
  • ******
  • Posts: 6484
Re: 426 Hemi Valve cover Gasket Recommendations
« Reply #1 on: August 07, 2020 - 11:29:56 AM »
Felpro cork gaskets work well.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline Oldschool

  • Administrator
  • Permanent Resident
  • *****
  • Posts: 13195
  • Member Since 9-05-06
Re: 426 Hemi Valve cover Gasket Recommendations
« Reply #2 on: August 07, 2020 - 04:37:06 PM »
Just make sure that the thickness of the valve cover gaskets match up with the spark plug tubes. A gasket that is too thick won't allow the spark plug tube to seat fully against the head where the spark plug enters the head, and could lead to enlarging the opening in the bottom of the tube. A gasket that is too thin allows the bottom of the tube to bottom out in the head too soon and will slightly raise the upper end of the tube above the top of the valve cover. One issue makes it hard to seal the lower end of the tube and the other issue makes it hard to seal the upper end.
Ken  --  In Georgia

MOPAR-------"Built To Run------Here To Stay"

Offline 6PKRTSE

  • Jr. Member
  • **
  • Posts: 285
Re: 426 Hemi Valve cover Gasket Recommendations
« Reply #3 on: November 04, 2021 - 10:46:07 AM »
I use Cometic for all of my Hemi Gaskets.
1970 Charger R/T S.E. 440 Six Pack
1970 CHALLENGER R/T, 25.5 Cert, 528 Alum 16 plug HEMI twin turbo.
1970 Charger 500 S.E. 440 4 BBL.
1970 Road Runner 383 4 BBL
1996 2500 RAM 488 V-10 4X4
2012 Challenger R/T Classic

Offline jimynick

  • Resident
  • *****
  • Posts: 4512
Re: 426 Hemi Valve cover Gasket Recommendations
« Reply #4 on: November 04, 2021 - 07:23:38 PM »
I use Cometic for all of my Hemi Gaskets.
Valve cover gaskets?????

Offline 6PKRTSE

  • Jr. Member
  • **
  • Posts: 285
Re: 426 Hemi Valve cover Gasket Recommendations
« Reply #5 on: February 10, 2022 - 03:41:16 PM »
Yes, valve cover gaskets also.
1970 Charger R/T S.E. 440 Six Pack
1970 CHALLENGER R/T, 25.5 Cert, 528 Alum 16 plug HEMI twin turbo.
1970 Charger 500 S.E. 440 4 BBL.
1970 Road Runner 383 4 BBL
1996 2500 RAM 488 V-10 4X4
2012 Challenger R/T Classic