OEM Heater Core 1964-1967 GTO Lemans Tempest Chevelle 442 Skylark w/o A/C.

Original factory heater core that I removed from a personal 1966 SS 396 in the 80s

The car was wrecked and I parted it out. This part has sat in a box and is not tested.

Look at how perfect the fins are not a bend.