Hot Rod Forum : Hotrodders Bulletin Board

Hot Rod Forum : Hotrodders Bulletin Board (http://www.hotrodders.com/forum/)
-   Hotrodding Basics (http://www.hotrodders.com/forum/hotrodding-basics/)
-   -   Header Gaskets (http://www.hotrodders.com/forum/header-gaskets-229829.html)

e073785 02-21-2013 12:30 PM

Header Gaskets
 
What is the best heater Gaskets For Finder wlll headers with Plates, it burning thru in the center flange. I am running methnane or alcohal as fule.

Douglas Ray

thinwhiteduke 02-21-2013 12:43 PM

I have no trouble with those perforated metal composite type that they supply in the gasket kits. I put high temp silicone (smear) both sides, nip em up most of the way, let it set and fully tighten. Check when cold 3 or 4 times and then occasionally. Keep em tight.
But the MOST IMPORTANT thing, make sure the flange on the header is STRAIGHT!!! Mine had a .100" bow in the middle, no way I could get em to seal. So I filled it up with weld, the ground it, belt sanded it, check with straight edge until it was straight. .....No leaks now!

I feel that so long as your surfaces are straight, pretty much any type gasket would do the job. Keep a check on the bolts....

Duke

oldbogie 02-21-2013 04:14 PM

Quote:

Originally Posted by e073785 (Post 1648944)
What is the best heater Gaskets For Finder wlll headers with Plates, it burning thru in the center flange. I am running methnane or alcohal as fule.

Douglas Ray

I run copper, aluminum or carbon/carbon especially with alky. That stuff (alky) burns slower than gasoline which puts a lot of temp into the exhaust. You may want to play with more ignition lead and/or more compression to force the burn to get over with before the exhust valve opens. You may find that an external coolant hose from the pump ears into the heads under and between the paired exhaust valves will help take some heat out of this spot. The head kind of warps in this area which makes life as an exhaust to header or header adapter gasket quite a bit tougher than on gasoline motors.

Bogie

lakeroadster 02-21-2013 04:19 PM

I did some searching here on the Hot Rodders site a while back looking for header gasket recommendations and found this thread: http://www.hotrodders.com/forum/how-...bc-226930.html

That lead my to use stock manifold gaskets on my headers. If you are running stock heads, with stock port configurations, they work just fine right out of the box.

Not sure though how they will work with the fuels you are using.

Here's the gasket set P/N's I ended up using:
http://i645.photobucket.com/albums/u...ps2d4b3d0d.jpg

Gaskets installed:
http://i645.photobucket.com/albums/u...ps36d0a86b.jpg


All times are GMT -6. The time now is 12:22 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.