#s matching 72

Do the "original" 1972 LT1 Alum. valve covers have a the rubber push in "Oil" cap or the twist on oil cap. I see most of the aftermarket covers have the twist on caps.
I have seen original pictures of Survivors that had the push in Oil cap. Were the originals polished to a high shine?

69FASTFUN

I think late 71 and 72 have the push in rubber plug

Gordonm

72s had the push in rubber one that said OIL on it.

#s matching 72

I am leaning toward the rubber one as being correct myself based on pictures that I have seen. Haven't seen any aftermarket retailers offering the ones with the rubber plug type. all seem to be twist on.

GD70

Yup, rubber. Here's a pic of Roy's (rvasquez) restored 72 LT-1. You can partially see the oil cap.
Glenn

Ironcross

370 hp 1970 LT1 crate engine, purchased Summer 1970 Dexter Chevrolet $612.00....Part of my continued HP upgrade for my 62 FI Vette. As GM put more HP in the small block engines the 62 was a beneficiary. This is correct as to components external and internal. The 'Oil cap is a push in and is printed "OIL" in the center, not a twist in...see below it should answer your questions.....




.

#s matching 72

Well looks like rubber push in is it. Any Corvette aftermarket retailers offer the correct type?

Alan 71

Hi #72,
I don't think the original valve covers were polished at all, certainly not to a high shine like you see now.
I've not seen the 71/72 style offered in reproduction, so I think a used set is your best chance.
Regards,
Alan

#s matching 72

I'm with you Alan all the pictures I've seen they were not polished.

Ironcross

nope, not polished. In fact I dont think any OE aluminum valve covers for GM were polished. See my pictures above....Some chrome steel covers were available in lue of painted covers on select applications however.

GD70

The finish was like this from the factory.

1970 LT_1 had twist on type, not rubber push in.

Glenn

bop

My 71 which is orignal has a twist on metal cap.

#s matching 72

Wow!!! I wonder where the the change occurred, My 72 is a early production, everything under the hood has 71 dates.

vettes4evr

These are factory '72 LT-1 covers. The finish was brought up slightly with some metal polish, but it's more like satin.

Gordonm

Mine is number 185 of the assembly line built in August. It had the push in OIL rubber cap.