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BOLT KIT, Header, Special Cam-Lock design, Grade 8,

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BOLT KIT, Header, Special Cam-Lock design, Grade 8,
Item # 9432-2LA
MPN # 9432-2LA
Brand: Proform

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BOLT KIT, Header, Special Cam-Lock design, Grade 8, 3/8 inch-16 x 3/4 inch long, (12), Each bolt is permanently attached with a set of special cam locking washers, When sufficiently torqued, the washers super hardened external serrated teeth bite into and grip the bottom of the bolt head and the top surface of the header, After being self-locked in this manner, any bolt loosening rotational movement is blocked by the cam locking action created by the washers interfacing matching cams, Loosening the bolt is literally an uphill climb, Vibration that would ordinarily loosen other header bolts actually increases the cam locking tension, keeping the bolt secure, Because this simple cam locking method uses tension instead of friction, contact with oil actually facilitates the cam effect, When changing headers these bolts can be loosened with a normal wrench, re-lubricated then reused

Vehicle Applications


1947-1998 CHEVY TRUCK

1948-1979 F1-F350

1955-1957 TBIRD

1960-1976 MOPAR

1962-1979 NOVA

1964-1972 TEMPEST

1964-1987 CHEVELLE

1964-1988 CUTLASS

1965-1973 MUSTANG

WARNING: This product can expose you to chemicals including lead and DEHP, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to


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