PAC 1.500” Dual springs

PAC 1.500” Dual springs 
 
Pac Racing springs is the originator of the 1.500” dual spring.  This spring changed the evolution of the drag race engine.  Allowing similar lift capabilities as its triple spring counter parts, the 1.500” dual springs offer higher spring rates and lighter spring/retainer packages allowing for more RPM, lighter seat loads and better valve train dynamics. 

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