66-73 stock small block heads?????

Correct this then.....:finga:

:wack:

.500" springs.... = springs for .430" - .480" lift (340 spec) and 6500rpm.

tell a newbie that OE Orange Stripe 340 Valve Springs came in anything performance SB then.....

Single Springs with Dampeners...No Valve Rotators....good to ANYTHING Under .500"

:violent2: :banghead: