Z28 Valve Springs Kit w/ Steel Retainers HD Locks for Chevrolet SBC 327 350 400Complete set of z28 valve springs for GEN I and II Small Block Chevy (not for vortec) engines. Includes chrome moly steel retainers and heat treated locks. Valve Spring Specs Max Lift: . 550" Type: Single W Damper Valve Material: Chrome Silicon Spring Diameter: 1. 250" Installed Height: 110# @ 1. 700" Open Load: 285# @ 1. 210" Retainer Specs Lock Angle: 7 degree Material: 4140 chrome moly steel Notes: heat treated; black oxide finish Lock Specs

146025-KIT Includes:

Intake Duration at 050 inch Lift: 220

9 Wideband Oxygen Sensor provides realtime Fuel Map Learn

050" 209/216 | Lift

including both flat tappet & roller valve trains

(2) Chevrolet Performance Knock Sensor Grommet - 12558177

Comp Cams VVT Phaser Lock Kit

050"  218° N   230° N  220° A 232° A  Duration @

Crankshaft Bolt - Click Here

Enginetech RCF302B Rebuild Ford 5

Enter the Mishimoto 2010-15 Camaro SS L99 direct-fit catch can kit

53” Wide