Cylinder Head - Super 23 - Assembled - 2.020 / 1.600 in Valves - 195 cc Intake - 62 cc Chamber - 1.460 in Springs - Angle Plug - Aluminum - Small Block Chevy - Each

Cylinder Head - Twisted Wedge - Assembled - 2.020 / 1.600 in Valves - 170 cc Intake - 61 cc Chamber - 1.460 in Springs - Aluminum - Small Block Ford - Each

Crankcase Evacuation System - Weld-On - 12 AN Hose / Air Oil Separator / Breathers / Fittings / Check Valve / Nipple Included - Aluminum / Steel - Natural - 1-1/2 in Breather Tubes - Kit

Crankcase Evacuation System - Weld-On - 12 AN Hose / Air Oil Separator / Breathers / Fittings / Check Valve / Nipple Included - Aluminum / Steel - Natural - 1-3/8 in Breather Tubes - Kit

Valve Cover - Tall - 3.5 in Height - Hardware Included - Fabricated Aluminum - Clear Anodized - Short Bolt - Big Block Chevy - Pair

Oil Fill Cap - Push-In - Round - 1-1/4 in Valve Cover Hole - Aluminum - Polished / Satin - Each