Valvetrain

1.450 1/2 Smog Rotators (8pcs) & 1/2 Spring Cups (8pcs)

1.450 Smog Rotators replacement Spring Cups were designed to eliminate the rotators on the Exhaust of the late model Big Block Chevrolet along with the 1.450"spring cup for the Intake to align the valve train and protect the cylinder head. 1.740" OD x 1...

1.450" Smog Rotator Replacement Cups 8pcs

1.450 Smog Rotators replacement Spring Cups were designed to eliminate the rotators on the late model Big Block Chevrolet. 1.740" OD x 1.450"ID Spring Diameter x.710 Guide ID x .130 Wall Height .300 Thick Black Oxide ( 8 pcs ) Clay Smith recommends...

1.450 Regular Spring Cups 16pcs

1.450 Regular Spring Cups 1.540" OD x 1.450" ID Spring Diameter.710 Guide ID x .132 Wall Height x.052 Thick Black Oxide ( 16 pcs) Clay Smith recommends the use of Spring cups on all cylinder heads. They not only protect the head and shim, but also...

1.250" Spring Cup 16pcs

1.250 Spring Cup 1.250 Spring OD x.520 Guide ID x.145 Wall Height x .060 Thick Black Oxide (16 pcs)   Clay Smith recommends the use of Spring cups on all cylinder heads. They not only protect the head and shim, but also locate and align the...

11/32 Teflon P.C. Valve Seals .500 x .343 Stem 16pcs

11/32 Teflon P.C. Valve Seals .500 x .343 Stem 16pcs Teflon P.C. Seals have a spring loaded wiper to remove excess oil Clay Smith Performance Valve Guide Seals are manufactured from premium materials and designed to LAST!