3 row radiator UY,IO,OO, NO A/C
You certain about the originality of the radiator ? Codes are unusual: UY tag is either a COPO curved neck 4 core, or a 396 w/A/C 4 core. IO tank code is a 4 core BB curved neck (which would match the pics above), OO is BB manual trans. Look for the date codes on the radiator - if they are a close match, this could get better. My L78 is a three core manual, pretty sure it's an original to the car. Possible HD rad ordered for this one, but who knows ? Now, if it only had a BE coded rear end stuffed under it -
Regards,
Steve
Performance axle ratio (3.73, 4.10) L78's began getting HD cooling (4 core curved neck) at some point in the model year thinking April. for sure by May they were-
If I am not mistaken someone did a report or write up here or maybe Yenko about the performance axle ratio and HD cooling... maybe an extra charge associated with the axle ratio? ?
I know of 3 more May L78's 3.73 and 4.10 cars with their original curved neck radiators, only in the last 6 months have I verified the cars.
Drop the gas tank... see if the build sheet is there. use a paint brush or womans make up brush to whisk any loose dirt off and if brittle do not attempt to remove with out a plan if it is stained black from grease or undercoating it can be saved.