Welcome to the Corvette Forums at the Corvette Action Center!

Header gaskets.....best way?

firstgear

Well-known member
Joined
Oct 11, 2003
Messages
1,895
Location
Norwalk, Ohio
Corvette
15 Z06, 01 Vert, 63 SWC & 60 ALL RED
Getting ready to mount my headers for good and bought the ARP 12 point head bolts. The directions say to apply a sparing amount of silicone or gasket sealer to adequately cover the gasket header. I have header gaskets. Are they saying that I should apply sealer to both sides of the of the gasket and then mount the header?

anyone? clarification?

thanks, Herb
 

BLee

Member
Joined
May 8, 2005
Messages
13
Location
Pasadena, TX
Corvette
67 Goodwood Green 427-435 convert
Me neither, and I've put on many, many sets of headers over the years. Just helped a friend drop in a Dart 406 in. SB in his 68 Camaro a couple of weeks ago. He used the ARP 12 point header bolts. What a huge PITA those were on several of the tubes. Give me the old 6 point fasteners any time.

BL
 
G

Gerry

Guest
I also never used any type of seal enhancing substance.

Gerry
 
Joined
Jan 1, 2002
Messages
7,246
Location
Washington, Michigan
Corvette
'67 Marina Blue Convertible
Me neither, and I've put on many, many sets of headers over the years. Just helped a friend drop in a Dart 406 in. SB in his 68 Camaro a couple of weeks ago. He used the ARP 12 point header bolts. What a huge PITA those were on several of the tubes. Give me the old 6 point fasteners any time.

BL

Exactly! That's why I've always used the 6-point (reduced 3/8" hex size) ARP NASCAR pre-drilled header bolts and safety-wired them; you can't use an open-end wrench on a 12-point bolt! BTW, Snap-On makes a nifty 3/8" x 3/8" open-end wrench (#VS12A) with different angles on each end that's handy for getting at header bolts you can't reach any other way. :)





:beer
 

bossvette

Gone but not forgotten
Joined
May 19, 2003
Messages
3,233
Location
West Unity Ohio
Corvette
1968 1997
for bolts I use Allen cap screws and I have all sorts of cut-off wrenches and ball drivers to make installation easier you can get them in stainless also
 

Tom Bryant

Well-known member
Administrator
Joined
Nov 9, 2000
Messages
7,205
Location
Edgerton, Ohio, United States
Corvette
1959 black 270hp (9/2/69) 1981 Beige L81(10/20/80)
I can't imagine that silicone can hold up to the heat. Last I heard those soft copper gaskets were the hot setup. I thought that the ARP 12 point intake bolts were going to be just the thing too but found out that on my tall intake I couldn't get the socket on several of them. Fortunately I have a long handle 12 point box end that allowed me to tighten them all evenly.
 
Joined
Aug 19, 2004
Messages
485
Location
Denver, CO
Corvette
'72 Targa Blue Coupe
I can't imagine that silicone can hold up to the heat. Last I heard those soft copper gaskets were the hot setup. I thought that the ARP 12 point intake bolts were going to be just the thing too but found out that on my tall intake I couldn't get the socket on several of them. Fortunately I have a long handle 12 point box end that allowed me to tighten them all evenly.

I agree with Tom and the others. I have never used any sealer at that location-I don't believe it will take the heat. I've had good luck with the Fel-Pro 1404 (SBC stock/small race) exhaust gaskets-have never had a blow-out in multiple header applications. The new copper and aluminum ones do look promising, however, I have not tried them at the head-only at the exhaust flanges-and they work great.

For fasteners, I use the "Stage 8" locking ones. They don't have the 3/8" head (I like those, JohnZ), but do have an allen center, and come with "e-clips" for locking them in place. But, you won't always get all the e-clips in place due to tube size relative to bolt location-especially with the Hooker Super Comps. I also use the ARP 12-point on the intakes-good for A/C cars to get at all the bolts. :)

Rick
:gap
 

henny496

Well-known member
Joined
Jul 27, 2004
Messages
318
Location
Beaverton Ontario
Corvette
1963 Corvette coupe(pro street)
Hello
I have never heard of using sealant on header gaskets, but maybe it is something new
Make sure you have a good quality gasket( I used to blow a lot of collector gaskets......mufflers, motors trannies etc......off topic now).
I always had problems with headers coming loose. I like the bolts that John has. I am going to look into getting some for myself.......good idea
take care
Tom
 

Viet Nam Vett

Well-known member
Joined
May 28, 2004
Messages
2,410
Location
Egg Harbor Township NJ
Corvette
65 BB 502 Cp /MSD ATOMIC EFI/ 2009-HUMMER H2
Oh Boy....Looks like I'm the odd man out here.

I'm running Sanderson Headers on my 502 with Alum heads.Sanderson uses a Patented Raised Boss around the Header opening. They suggest using Hi temp silicone sealer..(A very narrow bead about 1/4 ") around this boss and then instal the header.
I also use "Stage 8 Locks with ARP Bolts.



http://www.sandersonheaders.com/tech_leaky_headers.php


See Number 6 Instruction on this link.
http://www.sandersonheaders.com/tech_header_installation.php



Some more info..
http://www.sandersonheaders.com/tech_tight_fit.php
 
G

Gerry

Guest
Oh Boy....Looks like I'm the odd man out here.

I'm running Sanderson Headers on my 502 with Alum heads.Sanderson uses a Patented Raised Boss around the Header opening. They suggest using Hi temp silicone sealer..(A very narrow bead about 1/4 ") around this boss and then instal the header.
I also use "Stage 8 Locks with ARP Bolts.



http://www.sandersonheaders.com/tech_leaky_headers.php


See Number 6 Instruction on this link.
http://www.sandersonheaders.com/tech_header_installation.php



Some more info..
http://www.sandersonheaders.com/tech_tight_fit.php

Are those long tube headers or the shorty ones?

Gerry
 

Viet Nam Vett

Well-known member
Joined
May 28, 2004
Messages
2,410
Location
Egg Harbor Township NJ
Corvette
65 BB 502 Cp /MSD ATOMIC EFI/ 2009-HUMMER H2
Are those long tube headers or the shorty ones?

Gerry

They be shorty Block Huggers 1 7/8" Primary to 3" Collector Model# BB-5 Made just for the ZZ502 in the 63-67 Corvette.
They'll cutom make anything you want...
 
G

Gerry

Guest
They be shorty Block Huggers 1 7/8" Primary to 3" Collector Model# BB-5 Made just for the ZZ502 in the 63-67 Corvette.
They'll cutom make anything you want...

How much? I need long tube for my nova nut nothing stock fits and I don.t want to pay big bucks to jerry stahl.:ugh

gerry
 

Viet Nam Vett

Well-known member
Joined
May 28, 2004
Messages
2,410
Location
Egg Harbor Township NJ
Corvette
65 BB 502 Cp /MSD ATOMIC EFI/ 2009-HUMMER H2
How much? I need long tube for my nova nut nothing stock fits and I don.t want to pay big bucks to jerry stahl.:ugh

gerry
I paid I think 2 years ago $335.00 for the pair. Ceramic Coated inside and out. Don't know if those prices are still good. My set went back and forth for minor adjustments till the bend was excatly where I wanted it.

Call them and mention Rich Lagasse's name and or my name. Rich turned me onto them as they were the only ones at the time who would build a set for his 502 in a Vette. The owner went out and bought a 502 and used it for a jig in a midyear.

They'll work with you. They'll build you a proto type ..ship it to you so you can test fit. Then you can make corrections and send it back. They'll do this till it's correct and then coat the final build.

Ask for Gerimy..I think that's how you spell it. Gerimy is Sandersons Son. Nice guy.

If it wasn't for Rich...Alot of us would have tripped over our Penis many a Time. Thanks Rich..:beer


www.sandersonheaders.com
 

bossvette

Gone but not forgotten
Joined
May 19, 2003
Messages
3,233
Location
West Unity Ohio
Corvette
1968 1997
and when you tire of the 502 and move up to a 572 you will have to do it all over again. ;)
 

Corvette Forums

Not a member of the Corvette Action Center?  Join now!  It's free!

Help support the Corvette Action Center!

Win Both Corvettes!

Win Both Corvettes and Get Extra Bonus Tickets Now!

Supporting Vendors

Dealers:

MacMulkin Chevrolet - The Second Largest Corvette Dealer in the Country!

Parts/Accessories:

Dead Center Foundation

Vetteskins

Advertise with the Corvette Action Center!

Partners

Top Bottom