I am currently rebuild my '58 283 engine, 1 x 4, w/power glide.
My confusion is with the intake manifold.
The intake manifold that exists on my engine is casting # 3731398. According to the books I have been able to access this should be for 1957 corvette. However, the casting date code is clearly L87. Which I understand to be December 8, 1957.
All of the books I read, including NCRS 4th edition, indicate the intake manifold should be casting # 3746829.
Is it possible that they still cast an old casting number as late as December and placed this manifold on a corvette ? Do you think this manifold could be correct for a corvette assembled in January, 1958 (20th +-)?
I'm confused about this intake manifold. Please lend whatever assistance you can!
Thank you,
Cliff Kennedy
My confusion is with the intake manifold.
The intake manifold that exists on my engine is casting # 3731398. According to the books I have been able to access this should be for 1957 corvette. However, the casting date code is clearly L87. Which I understand to be December 8, 1957.
All of the books I read, including NCRS 4th edition, indicate the intake manifold should be casting # 3746829.
Is it possible that they still cast an old casting number as late as December and placed this manifold on a corvette ? Do you think this manifold could be correct for a corvette assembled in January, 1958 (20th +-)?
I'm confused about this intake manifold. Please lend whatever assistance you can!
Thank you,
Cliff Kennedy