New PAC Racing Valve Springs - Engine Builder Magazine

New PAC Racing Valve Springs

The PAC-1369 spring is a proven winner in Mountain Motor Pro Stock and Top Sportsman applications.

This PAC spring can handle well over 1.300 valve lift run after run. It is a proven winner in Mountain Motor Pro Stock and Top Sportsman applications. This modern spring design can effectively enhance your racing engine valvetrain performance.

Specs include:
450lbs @ 2.550 
1675lbs @ 1.250
942 Rate 
Max Coil Bind 1.180 

 

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