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Are they HD rockers?



No they were plain old stock, I could have bought HD but decided to go with 1.6 rollers instead for future build possibilities.

70 Dart Swinger, 2850 lbs
SB 408, Bullet roller 264/268 @50 .636 SSDS stage 2 Edelbrock heads, 1 7/8 Headmans, 1050 dominator by Dom, 9.867 @ 133