Riser 

Additional Details:

• Size: 4" or 101.6mm
• For: Crusader GM Small Block V8 305-350cu.in. (Models 220 & 270)
• For: Crusader GM Big Block V8 454cu.in (Models CH350 and 454XL)

Use With:

• 18-1925: Manifold
• 18-1926: Manifold
• 18-1929: Manifold
• 18-1933: Manifold
• 18-8523: Exhaust Elbow Mounting Kit
• 18-1918: Elbow
• 18-1928: Elbow w/ 4" Outlet
• 18-1934: Elbow w/ 3" Outlet
• 18-0305-1: Exhaust Elbow Gasket
• 18-0309-1: Exhaust Elbow Gasket

Interchanges/Replaces

Barr

• CR 20 97772

Crusader

• 97772

Mallory

• 9-40401

Osco

• 7772