1974 manual big block numbers

[Peter H.]

Hi all first time post for me. I've just acquired a 1974 big block matching numbers mostly. I am trying to see if anyone knows of the number of manuals built. I've heard it vary from 155 to 800 , any help would be a help

thanks Ausy Pete

[Mike F.]

Re: 1974 manual big block numbers

Just a guess using available production figures (if accurate).
1974 Production was 37502, M20 & M21 installed was 12356, or 32.9%. (M20 = 8862, M21 = 3494)
LS-4 installed 3494, 32.9% of that would be 1149. If the LS-4 required the M21 then it would be 9.1% or 317 manual big blocks.

GM Archive .pdf for the 74,

http://www.gmheritagecenter.com/docs/gm-heritage-archive/vehicle-information-kits/Corvette/1974-Chevrolet-Corvette.pdf

[Michael W.]

Re: 1974 manual big block numbers

Pete-

GM kept no records of option combinations, so any numbers you might see floating around are pure speculation. We know how many cars had a manual transmission, and we know how many had a given engine option, but we don't know how many had a combination of the two. I would suspect that buyers who chose a big block would be more likely to choose a manual box than automatic.

[Peter H.]

Re: 1974 manual big block numbers

thanks DSCF1819.jpg