1965-1967 Big Block Oil Cap

[Dominic P.]

Looking for help on clarifying the "S" on the rivet for a 1965-1967 big block oil cap.
I have seen some with a square type "S" and some with a curved "S".
Which is correct?

Also,
Can someone post a clear photo of what the underside of the rivet should look like?
I have seen some with a small type concave radius and some with a large concave radius.
Which is correct?

Appreciate the help on this topic!
Thanks,
Dominic.

[John H.]

Re: 1965-1967 Big Block Oil Cap

Looking for help on clarifying the "S" on the rivet for a 1965-1967 big block oil cap.
I have seen some with a square type "S" and some with a curved "S".
Which is correct?

I like the curved "S".

[Dominic P.]

Re: 1965-1967 Big Block Oil Cap

John,
Thank you for the photo.....

Any opinion or photo for the back side of the rivet?

Once again,
Appreciate it!!!
Dominic.

[Bill M.]

Re: 1965-1967 Big Block Oil Cap

I like the curved "S".

Me two......

I think this is from a '67 Camaro 396, but I'm not the original owner.

[Dominic P.]

Re: 1965-1967 Big Block Oil Cap

Bill,
Perfect!
Thank you!!!

[John M.]

Re: 1965-1967 Big Block Oil Cap

I have seen the square S used in 1965 to early 1966......Thanks John Meissinger

[Mark G.]

Re: 1965-1967 Big Block Oil Cap

Dominic -

The square "S" is generally associated with the '65 396 application. The bottom of the rivet is dimpled. A seminar at Boston 2007 had the presentation available on a CD, Midyear Parts Extravaganza. Slides 47-50 cover the '65 cap and there's more oil cap details. The disk has plenty of neat conversation starters too.

Mark

[Dominic P.]

Re: 1965-1967 Big Block Oil Cap

Mark/John,
Thank you for the information/feedback on the "S"....

Appreciate it!
Dominic.

[Joel F.]

Re: 1965-1967 Big Block Oil Cap

Dominic -

The square "S" is generally associated with the '65 396 application. The bottom of the rivet is dimpled. A seminar at Boston 2007 had the presentation available on a CD, Midyear Parts Extravaganza. Slides 47-50 cover the '65 cap and there's more oil cap details. The disk has plenty of neat conversation starters too.

Mark

This sounds like a great Restorer article! Who was the presenter? Do you know if the disk is available to the general membership?

Joel