I think it's the same fan as 70 L78. I've been told it has to do with noise and drone (frequency).
__________________
68 Acadian SS-350 auto/AC driver
70 Nova SS-396/375HP Bench Stick
72 Nova SS-350 5sp Mini Tubbed
67 Chevelle Conv. SS-427 clone
70 Chevelle SS-454 LS-5 M-22
|