Correct Timing Chain Cover for 1960 270hp?

[Mark S.]

Looking for a Timing Chain Cover for 1960 270hp. Does one Timing Chain Cover fit all engine configurations or is there a unique Cover for the HP cars? GM Part number and pictures of the correct Cover would be helpful. Thank you.

[Joe L.]

Re: Correct Timing Chain Cover for 1960 270hp?

Looking for a Timing Chain Cover for 1960 270hp. Does one Timing Chain Cover fit all engine configurations or is there a unique Cover for the HP cars? GM Part number and pictures of the correct Cover would be helpful. Thank you.

Mark-----


The timing cover was GM #3704124. However, the number is not found on the cover and I doubt you'll find an NOS example (with this number on the box). These covers are not rare and can be found on many passenger cars of the period as well as Corvettes. All of the basic covers were the same; the differences lie in the timing pointer. However, I think all of these earlier covers were set up with a pointer for 6-1/8" balancers

[Tom D.]

Re: Correct Timing Chain Cover for 1960 270hp?

Does this look correct? It's the 290 HP version with a reproduction balancer.

[Joe L.]

Re: Correct Timing Chain Cover for 1960 270hp?

Does this look correct? It's the 290 HP version with a reproduction balancer.

Tom-----


The basic cover is correct. I'm not sure about the timing tab as I'm not that familiar with the nuances of C1 timing tabs.

[Loren L.]

Re: Correct Timing Chain Cover for 1960 270hp?

If it's the Goat Hill Repro, it will be wrong, inasmuch as the diameter of that balancer was 6 1/2", not 6 1/8".

[David L.]

Re: Correct Timing Chain Cover for 1960 270hp?

I believe that the timing cover (in very poor condition) in my photos below is a 1955-1961 timing cover, GM # 3704124. I bought it for $1 at a swap meet just for research purposes. The tab measures 3.15"+/- from the center of the crank hole.

Dave

[David L.]

Re: Correct Timing Chain Cover for 1960 270hp?

Does this look correct? It's the 290 HP version with a reproduction balancer.

Tom,

The tab on your cover looks like the 62-E64 type.

Dave

[Mark S.]

Re: Correct Timing Chain Cover for 1960 270hp?

David, by chance do you have a sketch of what the tab looks like for a 56-61 Cover?

[David L.]

Re: Correct Timing Chain Cover for 1960 270hp?

David, by chance do you have a sketch of what the tab looks like for a 56-61 Cover?

Mark,

All that I have is the shape of the pitted timing cover tab in my 2nd photo. I can make out about 90% of the lines, the "0", and the "R". I can not see the "A" but I assume that it is there somewhere. The tab measures 1.19 and 0.88" in width.

Paragon makes a repro 56-67 tab which, in my opinion, looks like the 62-E64 tab.

Dave