Maybe I should ask this in another forum, but here it comes anyway. I´m wondering about the "extra" holes in the front crossmember ? There´s one in the middle that you will find on every GM frame of this kind. But there are also three more down there, and what´s the purpose of these ?
The white one is 1969 Chevelle-frame and the black one is a 1971 Monte Carlo. The Monte-frame has the third extra hole on the drivers side, while the GS-frame has it on the passengerside. The one below is from a 1971 Vista Cruiser 455 car. Looks about the same as the GS-crossmember.
70 GS 455 frame would be be BW code frame i'm not home right now or I would post a picture of the code it's behind driver side tire on the side of the frame near the exhaust pipe. I will double check the code when I get home tonight and post a picture .
James, you don´t have any extra drilled holes, just the centerhole that is punshed. Strange that I have the punshed one and three more drilled.
Duane, I did not post a pic of the passengerside manifold because it is so hard to read the two numbers, but I´m thinking 35. If so, could that be the original manifold then ?
70 big black frame would be BW here's pictures of the frame on my car this car has only been rained on once In 1986 coming home from Englishtown Raceway Park from a car show i've owned it since 1983 It's a really nice frame you can clearly read the numbers your car will probably be harder to see the numbers And letters .
The whole crossmember hole thing has been covered before,. Most of the factory big block frames had the extra 3 holes some did not,..some 350 cars especially fron the Freemont plant had them. The tell tale sign is the thickness of the side rails
Here is a pic of what I thought might be the original sparetire. But I asked Russel Small and he said it was built the 28th week 1970, so it can´t be. Now I´m thinking that maybe this car wasn´t built with the V2. Chrome Plated Wheels, depending on when the rims where built.
The only thing you can tell from that pic is it was built in 1970. The date code is on the inside lip where the tire weights would mount. It would read M4/0, Number, Number, and then either the rim size or the production code. Again, if you bought my date code book you could figure out all of this including every piece of sheet metal, engine components, seat belts, seats, steering column etc. If you also buy David Walkers 1970 ID book you could tell if every part has the correct part number, and with mine you can tell the dates. Between the 2 books you can authenticate every piece on the car, and know any "hidden history" that is there, such as if it was hit and a fender or core support was changed etc. You can see what the code looks like on the cover page of my book that is posted below. Duane PS. The images on the cover of the book is much clearer in real life. I had to cut it way down in size to fit it here.
Another plug for Duane's book- it is quite a reference for date coding parts!!! Duane- what code would the 1970 V2 chrome plated wheel have? Is it still a 14 x 7 JJ code?
"Duane- what code would the 1970 V2 chrome plated wheel have? Is it still a 14 x 7 JJ code?" George, I "think" the V2 sales code on the 1970 wholesale car order forms was a "catch all code". They had both 14"x6" and 15"x7" chrome wheels, and I think the size of the rim would have been "decided" by what size tire was ordered in the "F" section of the form. I also believe the "JJ" code was stamped inside the rims to designate "disc brake compatible." By 1970 all the wheels were disc compatible. There are a lot of different coding systems on rims. If you are asking what the Codes are for a 1970 14"x6" rim, Inside the rim, where the tire would cover it when installed, it would read, 14x6 JJ M4/9 or M4/0 810 (rim number) Then on the back lip it would read, M4/9 or M4/0 Number, Number, and then either "6.0" for the rim size or "WE" for the rim code. The "6.0" or "WE" would depend on when the car was built, early 1970 rims were coded by size, then mid-year that was changed to the rim"code letters". There is also a date code stamped into the back of the hub. This date commonly predates the "wheel assembly date" by 5-6 months, so the hubs were built a long time before the wheels were assembled. Now the above info was gathered from my book, from wholesale car order forms, and from some wheel articles I wrote for "The Buildsheet". Duane
Duane, I understand that I have to buy some books to make things easier. Your book and David Walkers "GS By The Numbers 1970". Can these be ordered at normal bookstores or must they be ordered at certain retailers in the US ? Here is a pic taken on the inside lip of the same rim. That would be January 27 1970 I assume, 7.0" wide. So they could have been put on the car from the factory.
Wouldn't V2 only have been used for a 14" chrome rim (assuming there was only one width 14" avail?) since the 15" chrome rim was part F7?
Dano- that's what I was talking about... My Sloan info has NO tire option (nothing highlighted in the "F" section), but does have option V2- chrome plated wheels. As my 70 is a November of 69 build, I would assume it's a 14" rim.. In regards to the OP's post, did 70 stage 1's only come with 15" rims? Or was there no "standard" when it came to wheels?
