Quote:
Originally Posted by the427king
I thought 77 was first year for 6.6 w72,not 78..??
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Correct, but 1978-1979 had the good 481988 XX block which is a thicker casting than the 1977 500557 thin-wall. Plus there were cam changes and induction system tweaks which meant 220 horse versus 1977 200 horse. The 481988 XX blocks are in 8 and 9 second Pontiac drag racers running today.
And no WS6 in 1977 available, only 1978-79, which makes a decent-handling car a REALLY decent- handling car.