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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!
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| | | | Joined: May 2004 Posts: 920 'Bolter | | 'Bolter Joined: May 2004 Posts: 920 | Any one have a favorite brand or type of gasket they would use for the intake and exhaust manifolds on a 235 or a 261? | | | | | Joined: Dec 2001 Posts: 14,522 Moderator: Welcome Centre, Southern Bolters, Legion Hall | | Moderator: Welcome Centre, Southern Bolters, Legion Hall Joined: Dec 2001 Posts: 14,522 | I used some Fel-Pro from the local shop and they have done fine...but I've only ran it maybe an hour in the car. | | | | | Joined: Aug 2012 Posts: 1,214 Shop Shark | | Shop Shark Joined: Aug 2012 Posts: 1,214 | I like Best Gasket but have also used Fel Pro successfully.
IIRC, the Best Gasket manifold gasket didn't need any trimming but the Fel Pro did around the mounting studs.
The Fel Pros worked and sealed fine once I fitted them correctly. | | | | | Joined: Jan 2000 Posts: 2,074 'Bolter | | 'Bolter Joined: Jan 2000 Posts: 2,074 | I used a Remflex thick gasket got from Summit, no goop to apply been fine. And it's one long gasket vs. short pieces. https://www.summitracing.com/parts/rfl-2027
Last edited by JiMerit Boltr#43; 04/04/2017 6:08 PM.
| | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Re flex is great material, however, if they do not have your engine, hard to work with(expensive, too.)
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Oct 2006 Posts: 1,847 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 1,847 | they have remflex gaskets for these engines. It is the best material I have ever used for exhaust. I didn't find it really hard to work with, we used it on generator exhaust when I worked in Alaska. | | |
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