1972 gas tank cap

[Jerome P.]

Does anyone know where I can get an original cap for my 1972? Preferable in very good to excellent condition?

[Paul O.]

Re: 1972 gas tank cap

Jerry

Here is one the Bay.

http://www.ebay.com/itm/71-72-73-74-Corvette-NOS-New-GM-Boxed-Gas-Fuel-Cap-SM-Stamp-3994339-/310627398607?pt=Vintage_Car_Truck_Parts_Accessories&hash=item4852d5f3cf&vxp=mtr

[Joe L.]

Re: 1972 gas tank cap

Does anyone know where I can get an original cap for my 1972? Preferable in very good to excellent condition?

Jerry-----


1972 used the GM #3994339 gas cap. This cap is still available from GM for a list price of about 45 bucks. If there are any differences from the original cap, I don't know what they are. However, it may be that the Stant Manufacturing logo is a bit different.

[Jerome P.]

Re: 1972 gas tank cap

Paul/Joe, The local Chevy dealer can get one for me by tomorrow. I know the '72 has "OPEN SLOWLY CAUTION" and "SEALED" embossed into the topside of the cap and the sides are smooth vs scalloped.

What I am not sure of is the design of the original SMC logo. From memory - I think the eBay item has the correct original logo. Your thoughts.

[Joe L.]

Re: 1972 gas tank cap

Paul/Joe, The local Chevy dealer can get one for me by tomorrow. I know the '72 has "OPEN SLOWLY CAUTION" and "SEALED" embossed into the topside of the cap and the sides are smooth vs scalloped.

What I am not sure of is the design of the original SMC logo. From memory - I think the eBay item has the correct original logo. Your thoughts.

Jerry------


The current GM piece will almost certainly have the modern-day SMC logo. Otherwise, I believe it's identical to the original cap.

[Paul O.]

Re: 1972 gas tank cap

Jerry

As Joe stated the current will just have a large "S" only. The one on ebay has the original style the SM then a large "C" encircling the first 2 letters then it is all inside a full circle or ring for Stant Manufacturing Corporation if I recall correctly.

[Edward J.]

Re: 1972 gas tank cap

Paul/Joe, The local Chevy dealer can get one for me by tomorrow. I know the '72 has "OPEN SLOWLY CAUTION" and "SEALED" embossed into the topside of the cap and the sides are smooth vs scalloped.

What I am not sure of is the design of the original SMC logo. From memory - I think the eBay item has the correct original logo. Your thoughts.

I have seen the replacement caps they are shaped the same, but the plating in not silver Zinc as the one on E/bay , it is gold diachromate and the smc logo is different.

[Joe L.]

Re: 1972 gas tank cap

I have seen the replacement caps they are shaped the same, but the plating in not silver Zinc as the one on E/bay , it is gold diachromate and the smc logo is different.

Edward------


The eBay cap has the dichromate (gold) over-plate. I don't know if the originals had this finish, or not. In any event, it's easy to remove. Just immerse the cap in a weak acid solution. This has to be done carefully, though, or one will blacken the underlying zinc plating.

[Paul O.]

Re: 1972 gas tank cap

Ed

At some point in 1972 production or it could be most or all the gas caps had a Dichromate wash finish. That style was used till the introduction of unleaded fuels change the cap.