Originally Posted By Eric
Originally Posted By deaks
The 4.15 piston is only 468g though.


Are you using the Mahle pistons?


I'm using the 99497 ross pistons Eric and sorry but i got it wrong they're 486g but they're still the lightest of all the mopar BB pistons on their web page.
Mick

69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200#
best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft
best 60ft 1.36