Landracing Forum

Tech Information => Technical Discussion => Topic started by: Happy Pappy on November 20, 2020, 12:44:01 PM

Title: header to head sealant
Post by: Happy Pappy on November 20, 2020, 12:44:01 PM
Hey All,
I am going to have to use a sealant between the header & my cast IRON HEADS. Is there a preferred silicone or whatever material that really works well for this gasket.
I have used the orange stuff before just not for this application, and the black for oil pan and intake end sealing. Just not sure what works the best for exhaust.
Thanks,
Chris
Should add this is for an AIR Roadster so no sensors.
Title: Re: header to head sealant
Post by: manta22 on November 20, 2020, 01:48:20 PM
Red RTV is the highest temperature grade.
Title: Re: header to head sealant
Post by: jimmy six on December 08, 2020, 06:41:07 AM
Yep...... If it's a SBC the multi-layer aluminum ones are the only ones worth a damn on our dirt track car with the long rear crossover headers even supported.
The only seal on our GMC 12 port nitro engine was the red RTV and 3/8" header flange.