Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures.
| Type | BC1070 IN/BC1089 EX | 
| Free Length | 2.231″ | 
| Seat | 1.975″ @ 58 lbs | 
| Open | 1.500″ @ 154 lbs | 
| Coil Bind | 1.320″ | 
| Retainer | BC2070 | 
| Keepers | BC2940 | 
| Net Cam Lift | 0.490″ / 12.45mm | 




				
				
				
				
				
				
				
				
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