VCCA Home Forums TECHNICAL - 1945 AND EARLIER 1912-1928 1927 Chevy Coach exhaust system

We have just purchased an exhaust system and exhaust hanger from Gary Wallace for our 1927 Coach. My question is where does the hanger attach onto the frame (or wherever)? The existing exhaust system is missing the tailpipe and the existing hanger is a piece of wire. The new tailpipe is quite long and if we used a site near the wire hanger it appears about two-thirds of the tailpipe would be unsupported. Any help would be appreciated.

The tailpipes on the 1927 and 1928 Chevrolet cars and 1/2 ton trucks were originally terminated just forward of the rear axle. These tailpipes were secured in place using a solid metal strap that was attached to the frame cross member which is midway between the transmission and the rear axle.

Mid-year 1928 Chevrolet extended the tail pipe length on cars and 1/2 ton trucks over the rear axle to the rear of the vehicle. This change is noted in the Chevrolet Service News dated September 1928. Its unclear if additional hangers were released at this time, but the November 1928 Service News shows views of a hanger located between frame right side rail (horizontally) and the tail pipe at the axle kick-up area. A second hanger was added vertically between the fuel tank right side strap and the tail pipe.

The original short tail pipes were fluted along their length, turned downward slightly and terminated just ahead of the rear axle. The later lengthened tail pipes, without the added hangers, will oscillate noticeably from left to right during vehicle operation. To my knowledge the current makers of '27 and '28 exhaust systems make the longer tail pipes only and I'm unaware of anyone making the two additional tailpipe hangers. I fabricated my own and carry documentation to support their usage.

Just the info I was looking for,thanks!

When I bought my 28 it had a long tailpipe on it and I was told that it should be short so in the restoration I shortened it. That didn't last long. The resonance was irritating at times so I lengthened it again.

Ditto,

Short exhaust changed after I week on the road. Leave the engine noise behind you, not with you under the car. Be able to hold a conversation at normal voice at 50 MPH. There are 2 good reasons.

Cheers

Ray

jimandmark;
If you look at the center page of the owners manual for your particular year , you will see where the exhaust ends as it came from the factory in the lube chart. Now; let it extend out the back and enjoy some peace & quiet as you drive. (Your not a member of "NCRS" so don't sweat the small stuff. (FYI NCRS= National Corvette Restoration Society.....very picky about originality)

Steve,

Could not have said it better myself. There are things to worry about doing, and things to just do.

You will be glad to leave the noise behind.

Cheers

Ray