McLeod 168 Tooth Steel Flywheel - 36 lb - Internal Balance - 1-Piece Seal - Small Block Chevy FLEX-BOOM-AV Block ports have 3/8"-24 threads

Block ports have 3/8"-24 threads that accept 3/16" inverted flare style fittings

"H" series headers #7 tube extended toward the rear and angled up to provide for more clearance for the foot box and chassis bars

Now there is a better way

Screw-On Cap

Holley Dominator EFI

McLeod 168 Tooth Steel Flywheel - 36 lb - Internal Balance - 1-Piece Seal - Small Block Chevy FLEX-BOOM-AV Block ports have 3/8"-24 threadsMcLeod steel flywheels are perfect for street applications where easy stop light acceleration is desired. Steel flywheels come in various weights and dimensions. For race applications, a heavier steel unit is ideal for helping launch a heavy car with a smaller engine with less torque and horsepower. They are CNC machined from billet alloy steel and have 1045 hardened steel ring gears. Product Description: Flywheel 168 Tooth 36 lbs Steel Internal