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| | | | Joined: Oct 2012 Posts: 85 Shop Shark | | Shop Shark Joined: Oct 2012 Posts: 85 | I've got a 50 chevy 235 engine. The exhaust manifold is angled and i have a flat flange (no round dougnut gasket) between the exhaust manifold and exhaust pipe. There's a flat gasket between the two is that the way it should be? Or should my exhaust pipe be flared and have the doughnut gasket spacer between the two? Any pics available?
Dan | | | | | Joined: Jul 2010 Posts: 592 Shop Shark | | Shop Shark Joined: Jul 2010 Posts: 592 | Dan, both types of gaskets and flanges can be used.
If you have a flat flange on your exhaust pipe, you'll want to use a flat gasket.
You'd want to use a donut gasket if you had a flared exhaust pipe/flange.
The donut set up give more flexibility to adjust the exhaust.
There are many opinions about which one is best. Both work.
Matt
| | | | | Joined: Oct 2012 Posts: 85 Shop Shark | | Shop Shark Joined: Oct 2012 Posts: 85 | just curious back in 1950 how did the truck come off assembly? Flat flange or donut gasket? | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | | | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | I used Fel-pro 60052 gaskets on my Fentons with no ring cut for donuts and flat flanges on the pipe. It has a crush ring built into the gasket. The flat gasket would probably work if everything is aligned right. My problem was shoddy workmanship by the muffler shop that did my pipes. After a couple of hundred miles my gaskets blew out. Since my fix I have put about 25,000 miles on it with no problems. If interested you can read about the problems and the fix here. | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Just make sure to use brass nuts(no monkey jokes here) so they can be taken apart someday.
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.
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