a/c interchange

  1. 7

    A/C compessor issues

    I have a 77 A/C Auto car that I replaced the drive train (and almost everything else) to a 71 ls6 454. The car is a late build 77 and had the R4 compressor and no VIR . GM never built a corvette with a 454 and the R4 compressor. I have an A6 compressor and the corvette 454 mounting brackets...