68gtx
Well-Known Member
thinking about putting together a six pack for my gtx, but looking around have found aluminum inatkes and cast iron intakes that both say they were original equip, which ones did they come with?
restoration would have date coding if you really wanted to be technical.
if have a M-code... aluminum
if you car was built was 70 or 71. cast iron.
a 70 car with a mid fall '69 build date might have a aluminum one. im not sure on the cut off date is
just buy the after market edelbrock its identical to the 69 factory except it says edelbrock on it and paint it up it looks and works great
I was following the discussion and I have a 70 RR 6pk with 36,000 original miles on it. I had it appriased and the appriasier pointed out the the manifold is alum. I thought it was cast iron since it was painted. Where would I find the "M" Code on the manifold or on the build sheet?
Thanks for the information good to know.
Your 1970 model is not an "M" code car, only the 69 lift off hood cars are M code six pack cars.
The "M" is the 5th digit in the V.I.N. for "special engine." So yes, it is on the broadcast sheet (in the V.I.N.) and on the V.I.N. plate on the car.
Your 70 is a "V" code car.
There is no "M" on the intake manifold. The above posters were indicating that the "M" code (69 six pack cars) got the aluminum manifolds. However some early 70s models also got an aluminum intake (left overs from the 69 production) rather than the cast iron. I would suspect your 70 is an early car.