I believe that ABC are holes used for side mounts. I know GM shifted to sidemounts during 50's and started casting blocks for sidemount but also had front mount plates for replacement engines on older vehicles. On my truck I have a bracket that runs from A, across B, to D, which holds the generator/alternator.
My 1950 truck had center front mount only
My friends '57 truck, front crossmember, had ability for sidemount or front mount engines. The 235's where casted for side mounts untill front mounts where phased out. This truck had a '62 235 sidemount only replacement engine which I planned to use on my front mount only '50 truck.
I choose to make sidemounts on my frame and instead of milling block and exchanging mounting plate.
Somebody please correct me if Ive drawn some wrong conclusions
Last edited by Shellology; 12/30/2007 12:30 AM.
