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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: Feb 2003 Posts: 1,377 'Bolter | | 'Bolter Joined: Feb 2003 Posts: 1,377 | Ever since I installed the 216 valve cover on the 235 in my 37 I have noticed increased valve train noise coming through the firewall,outside under the hood it does not seen that bad but is more noticable inside the cab. I have carpet glued to the firewall and suspect its not enough,could the vent holes on top of the 216 valve cover let more noise out then the 235 cover that had no holes. | | | | | Joined: Sep 2003 Posts: 1,820 Shop Shark | | Shop Shark Joined: Sep 2003 Posts: 1,820 | Jeff, I ran a Fenton valve cover on my 261 with breathing holes in it and never noticed any more noise, but it does seem quiter with the Sharp I am running now. The heavier aluminum valve cover does deaden the noise some.
"Truckin' Around .......... Since 1937!" My name is Joe and I am addicted to Classic Country Music. I just can't hep myself.Operators are standing by to take your calls! Now cruising in the Passing Lane | | | | | Joined: Oct 2003 Posts: 445 Shop Shark | | Shop Shark Joined: Oct 2003 Posts: 445 | Jeff,do you have a copper line on your oil gauge from the engine???.This will carry the valve noise.Plastic line will solve the noise.Just a idea.yep that,s a fine looking ride
Last edited by dan-pa; 01/27/2011 9:33 AM.
dan-pa
| | | | | Joined: Feb 2003 Posts: 1,377 'Bolter | | 'Bolter Joined: Feb 2003 Posts: 1,377 | I went from a Offy aluminum valve cover to the 216 and thats when I noticed more noise and I am still using the original oil pressure line what ever it is,I was going to adjust the valves last night but could never get the motor as warm as I wanted so I will do it when it warms up some. I never driven it on the street when it had the 216 so I am not familar with what noises are normal for these old trucks,I am going to see if a firewall insulation pad is made for a 37 and install one when I redo the interior. | | | | | Joined: Apr 2005 Posts: 2,832 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,832 | General Motors did a sneaky trick on my 37 Buick concerning valve noise; guess they didn't want a snooty Buick to be as noisy as the common Chevy. They draped a 1/2" or maybe thicker piece of felt over the rocker assembly which muffled it tremendously. With it in place it sounds like it has hydraulic lifters and without it clatters away with two more cylinders to rattle than a Chevy. Some of my machines have felt in the oil cups and very early cars used oil soaked felt to lube some components so I guess it was a common practice.
Evan
| | | | | Joined: Feb 2003 Posts: 1,377 'Bolter | | 'Bolter Joined: Feb 2003 Posts: 1,377 | I do remember reading about something that was installed on top of the rocker arms to reduce noise but never seen what it was. | | |
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