| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,109 Posts1,056,269 Members48,439 | | 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!
| | | | Joined: Sep 2015 Posts: 78 'Bolter | | 'Bolter Joined: Sep 2015 Posts: 78 | Wading through threads concerning torques and techniques. I gather that the torques are basically by feel from center out to the ends due to space limitations. Snug bolts then a little more evenly. Use of anti-seize on bolts. Expand guide rings to hold in the intake manifold ports to avoid falling out. How about use of gasket spray seal? Any other tips? Recommendations.
Planning to install today. Thanks for any and all additional responses. | | | | | Joined: Jan 2000 Posts: 2,074 'Bolter | | 'Bolter Joined: Jan 2000 Posts: 2,074 | main issue is that both manifolds are perfectly aligned. Bolt them on mated together, slightly loose and once in place and tight to head, then re tighten intake to exhaust bolts. | | | | | Joined: Feb 2004 Posts: 29,804 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,804 | Unless a manifold gasket also seals coolant, such as the end ports on a small block V8, using any kind of sealer isn't a good idea. If the manifold and head surfaces are straight and clean using sealer is just a waste of time, and might allow the gasket to creep out of alignment. Having the alignment rings in place and the proper thickness so they don't keep the manifold from pulling up snug against the head is far more important than sealer.
The rule of thumb that I was taught to observe was to never use sealer on a gasket that is exposed to intake manifold vacuum. It's worked well for me for 60+ years.
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!
| | | | | Joined: Apr 2005 Posts: 2,832 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,832 | I have a 37 Buick with a straight eight which had a manifold cracking problem on manifolds that are hard to find and $$$. The car has been driven 16 hours non stop at 70mph which it was never designed for in 1937 and I think the extended high heat and quick cool down was a contributing factor. I trued all mating surfaces, cleaned operating room clean, and discarded the alignment rings replacing them with an all studs-no bolts set up, applied a bead of high heat silicone, and drove trouble free for 25 years. The operating room clean is mandatory as silicone seals by adhesion, not compression. The alignment ring delete allows the manifolds to expand and contract with no binding. Picture shows manifold has been VERY hot with no harm to sealant. [img]https://i.postimg.cc/dhYr1qKp/Pont-heater-Buick-sealant-003.jpg[/img]
Evan
| | |
|
|
| |
