Click on image for the lowdown. 
====
| | | Forums66 Topics128,018 Posts1,055,339 Members48,419 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | 
#81016 08/04/2007 11:49 PM | Joined: Dec 2006 Posts: 37 Member | | Member Joined: Dec 2006 Posts: 37 | Hey, what do you guys use as head bolt sealer on a SB chevy? would c5a work? thanks in advance. | | |
#81017 08/05/2007 12:12 AM | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | 51dan79,
I remember wire brushing them, dipping them in oil and sticking them in. None ever leaked...maybe we're talking different head bolts.
Stuart | | |
#81018 08/05/2007 12:29 AM | Joined: Dec 2006 Posts: 37 Member | | Member Joined: Dec 2006 Posts: 37 | Of all the motors we did as kids to now [50 years] we did the same, now I decide to read the literature from world heads and they say you need a sealer, I think I'll just do like we always did and oil them. thanks Dan | | |
#81019 08/05/2007 12:40 AM | Joined: Jan 2007 Posts: 176 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2007 Posts: 176 | I use a little pipe thread sealer, just a dab. although on a smallblock it is probably not nessary. on the newer engines of today with aluminum blocks and steel fastners it is nessary
1970 C50 dump! saving orphans from the CRUSHER
| | |
#81021 08/05/2007 1:33 AM | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | Dan,
I went to World Heads, and sure enough, in big bold print, it says to use a thread sealant. They make the stuff, so I sure would go with their advice...call them and ask them what they recommend. I thought all small block head bolt holes went into the water jacket...maybe they don't!
Stuart | | |
#81022 08/05/2007 2:23 AM | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | I would say the real question is whether or not the bolt holes in question are blind tapped or open on the bottom. I use either Fel-Pro Pli-A-Seal or Permatex high temp thread sealant (the white stuff). From-A-gasket is ok, but will dissolve in gas, so be carefull where you use it. If they're blind tapped, use a engine oil,or anti-seize if it's going into aluminum.
Bill Burmeister
| | |
#81023 08/05/2007 2:57 AM | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | Permatex #2 is good for tapped holes in to water jackets. | | |
#81024 08/06/2007 9:14 AM | Joined: Mar 2006 Posts: 1,703 Shop Shark | | Shop Shark Joined: Mar 2006 Posts: 1,703 | on SBC's I have always just lubed the head bolts for proper Tourqe..now on the Intake I always use the white permatex thread sealant on ALL as some of the bolts do go into the water jacket .
my 2 pennies.
Tim | | |
#81025 08/07/2007 5:17 AM | Joined: Mar 2006 Posts: 72 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2006 Posts: 72 | Never used a sealer on SBC head bolts. Just lubed 'em and torqued 'em. If you were looking to seal something, I'd recommend Permatex #2. | | |
#81026 08/07/2007 3:11 PM | Joined: Feb 2004 Posts: 29,746 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,746 | I assemble most engines with NeverSeez thread lube, unless the factory service manual calls for a thread sealer. Then I use Permatex Super 300. It's a brush-on sealer that's a thick liquid, somewhat easier to apply than the stuff in the tube. There's also another brush-on liquid Permatex product called 3-D, but Super 300 is compounded to be resistant to things like alcohol and aviation gasoline, so I think it's a better sealer. It's a little hard to find unless you're ordering from a Permatex distributor.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | |
#81027 08/09/2007 5:20 AM | Joined: Jul 2003 Posts: 586 Shop Shark | | Shop Shark Joined: Jul 2003 Posts: 586 | I've used Permatex White thread sealer on 6 or 7 engines i've done. Never had a problem. Cecil........ | | |
#81028 08/09/2007 11:24 AM | Joined: Nov 2004 Posts: 117 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2004 Posts: 117 | I think C4A would be a good choice (ha). Never used thread sealer on a head bolt before, don't know why now.
cgresham1212
If you don't drive it, why have it?
55 1st Series 3100 5 window
| | |
|
|
