CFE 18 Degree Spread Port

CFE 18 degree spread port heads are available assembled or bare. Assembled heads are delivered standard with Victory titanium valves and Manley Nextech valve springs (.900 lift). Substitutions available for an additional charge.

CFE 18 Degree Spread Port Base Programs:

• Standard 18 degree spread port programs available in both square and oval port configurations depending on customers application. Programs are custom tailored to the customers manifold request, whether the engine requires a cast 1x4bbl or a sheet-metal tunnel ram is allowed.

CFE 18 Degree Spread Port Features:

• Up to 2.400" Intake Valve Diameter
• Up to 1.900" Exhaust Valve Diameter
• Ductile Valve Seats
• 11/32" alloy valve guides are standard
• Combustion Chamber volume of 95cc @ 4.500" bore
• Combustion Chamber volume of 97cc @ 4.600" bore

CFE 18 Degree Spread Port Requirements:

• Requires 4 left-hand .180 offset lifters and 4 right-hand .180 offset lifters for intake. On-center lifter can be used for exhaust.
• Utilizes a standard 18° "Big Chief" Style Piston.
• Utilizes a standard big block chevy header flange.

CFE 18 Degree Spread Port Options:

• Available 1x4500 Matched Cast Manifolds in either 9.800" or 10.200"
• Available 2x4500 Matched Cast Manifolds in either 9.800" or 10.200"
• Alloy valve seats.
• Steel Exhaust Guides for Nitrous Applications.
• 5/16" valve guides
• Rocker arm kits are available from Jesel and T&D:

Jesel Part Numbers

• 18 Degree CFE Spread Port - KPS-23097

T&D Part Number

• 18° CFE Spread Port - 3036