jmurrayent

Just picked these up at a swap meet, the guy said they were off a '67 Corvette, but not sure, any opinions? Thanks[IMG][IMG][/IMG][/IMG]

Vette-66

They look similar to my 66 covers, the photo on the left has a bracket spot welded on that does not look familiar. I do not think any came chrome.

Chuck

jmurrayent

I have Noland Adams book and there are several pics of original 427's and none have that bracket on top of the passenger cover, although my book only goes to '67. I was on Crane's site, they seem to make some of the best repro valve covers, and I saw a pic of a rebuilt engine with a similar set of covers with that bracket, but they were painted. They were on a tripower engine, but they year was not specified.

I was thinking someone may have chromed these, or they are off a later vette or camaro/chevelle?

mjs-13

No original BB valve covers were chrome on mid-year Corvettes. The bracket on the passenger valve cover is correct for a 66-67 Corvette with AIR injection (smog). This bracket holds the diverter valve. These could have come from a 67 Camaro or a 66-67 Big car since those cars did have chrome valve covers or could be Corvette covers that have been chromed.

Since AIR injection did not become mandatory until 1969 all Corvettes with 4 speeds, these covers would have come on a car with the AIR injection option, probably a car sold new in California since it was a required option for cars delivered new in California. AIR injection could be ordered on any Corvette without regard to delivery destination. I had a 67 BB with smog that was delivered new in Cocoa Beach Florida.

The driver's side cover does have the correct rear slant on the valve cover for a mid-year and early BB's installed in other Chevrolets. The drippers inside the valve covers are normal and appear correct as best I can tell with the pictures provvided.

jmurrayent

That makes sense about the passenger side bracket. I'm in Reno, and I think the guy I bought them from was from California. I imagine these are more rare than the non emissions type. Hopefully I can sell them and get a correct set for my '66. Thanks

PRNDL

All 68 vettes had AIR, and the bigblocks had chrome valve covers, but I dont know the details well enough to tell you if those would be for a 68 corvette.

63Corvette

The dent on the rear of the passenger side valve covers (above) indicates that these covers were used on a car with power brakes, because the dent was required to clear the booster.

mjs-13

Not necessarily would the car have power brakes! The "dent" on the "driver's" side valve cover was on all BB valve covers used on 65-67Vettes with or without power brakes. The dent was there to clear the booster as you noted however the same valve cover was used on both power and non power brake cars.

The valve covers were installed at the Tonawanda engine plant, not the St. Louis assembly plant. The Tonawanda engine facility had no idea as to what options the car in which any engine was installed would receive.

knight37128

Mine do not have a dent nor are they crome.

68435roadster

They appear to be '67 with A.I.R. that have been chromed. G.

ghostrider20

I had friend with a 69 tri power, and those looke exactly like it. I think in 69, all BB covers had the dent, not true for 65-67 BB covers without PB.

I have never seen a 65-67 cover with chrome.

My best guess is they are of a 69 427.

Mark

JohnZ

All '65-'67 BB's had the clearance "dent" at the rear of the driver's side valve cover, whether they had power brakes or not; engines weren't scheduled or configured uniquely for power brakes. The only '65-'67 BB that had chrome valve covers was the (16) '67 L-89's.

DansYellow66

They look like repro. I don't see any sign of spot welds for drippers either unless they have been filled and smoothed over.

Dan

knight37128

They are there, had them off the other day. The camera has too many things to focus on. That is the problem with these cameras they are dumbed down, and you cann't focus on a spot.