Performance Valvetrain

Dart 64110003 rocker arm stud girdle for Small Block Chevy Dart heads. Features 7/16-20in thread studs, includes polylocks, made from gold anodized aluminum, designed for racing builds to stabilize rocker arms. Enhances performance in high-performance...

Dart 64110001 rocker arm stud girdle for Big Block Chevy Dart heads. Features 7/16-20in thread studs, includes polylocks, made from gold anodized aluminum, designed for racing builds to stabilize rocker arms. Enhances performance in high-performance BBC...

Dart 63121502 valve guide for GM LS1. Features an 8mm valve, 2.150in long, 0.439in OD, made from manganese bronze, designed for racing builds to ensure precise valve alignment. Enhances durability in high-performance LS setups. Sold as each.

Dart 63121213 valve guide for Small Block Chevy intake/exhaust. Features an 11/32in valve, 2.250in long, 0.439in OD, made from manganese bronze, designed for racing builds to ensure precise valve alignment. Enhances durability in high-performance setups...

Dart 63121212 valve guide for Small Block Chevy. Features an 11/32in valve, 2.100in long, 0.439in OD, made from manganese bronze, designed for racing builds to ensure precise valve alignment. Enhances durability in high-performance setups. Sold as each.

Dart 63121210 valve guide for Small Block Chevy. Features an 11/32in valve, 1.950in long, 0.439in OD, made from manganese bronze, designed for racing builds to ensure precise valve alignment. Enhances durability in high-performance setups. Sold as each.

Dart 63121205 valve guide for Small Block Chevy. Features an 11/32in valve, 3.000in long, 0.502in OD, made from manganese bronze, designed for racing builds to ensure precise valve alignment. Enhances durability in high-performance setups. Sold as each.

Dart 63121201 valve guide for Small Block Chevy. Features an 11/32in valve, 1.950in long, 0.502in OD, made from manganese bronze, designed for racing builds to ensure precise valve alignment. Enhances durability in high-performance setups. Sold as each.

Dart 63121204 valve guide for Small Block Chevy. Features an 11/32in valve, 3.000in long, 0.502in OD, tapered design, made from manganese bronze, designed for racing builds to ensure precise valve alignment. Enhances durability in high-performance setups...

Dart 63121203 valve guide for Small Block Chevy. Features an 11/32in valve, 2.250in long, 0.502in OD, made from manganese bronze, designed for racing builds to ensure precise valve alignment. Enhances durability in high-performance setups. Sold as each.

Dart 63121202 valve guide for Small Block Chevy. Features an 11/32in valve, 2.100in long, 0.502in OD, made from manganese bronze, designed for racing builds to ensure precise valve alignment. Enhances durability in high-performance setups. Sold as each.

Dart 63121104 valve guide for Big Block Chevy. Features a 5/16in valve, 3.000in long, 0.502in OD, made from manganese bronze, designed for racing builds to ensure precise valve alignment. Enhances durability in high-performance setups. Sold as each.