- Engines & Components
- Cylinder Heads
- AFR Small Block Chevy 235cc Eliminator Race Aluminum Cylinder Heads
Raised Runner Performance from a Standard Location Port SB-Chevy 60/40 Head
With the price of big displacement SBC engines fraction of what they were years ago, the allure to go BIG is stronger than ever. To help quench the thirst of that large displacement monster AFR is proud to offer our largest direct bolt on 23° Chevy head yet. At 235cc's, any small block under 400 cubic inches can just look the other way. It has the same geometry as AFR's 227cc head and will accept all the same rocker arms, stud girdles, etc. AFR offset stud girdles are the only special parts required. Requires shaft mount rockers or .050'' offset intake rocker arm for durability and reliability of valve train components.
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With the .050'' offset the intake rocker arm will be at a slight angle and the roller tip will not be perfectly parallel or centered on the valve. It will feature a larger 2.125'' diameter intake valve. Exhaust valve diameter stays the same, at 1.600'' diameter, with a little more flow from its larger runner volume. The big news is in the intake port design which pushes this standard location intake port over 340 CFM's! That's 18° head territory and this head should be able to generate power figures that rival those heads (725+ HP). As well the exhaust port and bolt pattern are raised .250'' (1/4'') over GM L98 head, this rarely affects header or chassis fitment. These 235cc aluminum cyilnder heads are available in either standard port or spread port exhaust configurations. Spread port heads have the center exhaust ports spread apart 5/8'' over stock L98 GM heads. The reason for spread port heads is to achieve additional cooling in the center of the head where the heat concentration is greatest. As standard headers do not fit, spread port headers are required since the center ports are spread further apart then stock GM products. The increased spacing on the exhaust port also requires the use of exhaust gasket Fel-Pro p/n 375-1409. Spread port heads only come with a Stahl bolt pattern. AFR's spread port head has all the benefits and features of AFR's standard head. .
235cc Eliminator Race Cylinder Head Features:
- 100% CNC Ported Combustion Chambers
- 100% CNC Ported Exhaust Ports
- 100% CNC Ported Intake Ports
- Competition 5-angle Valve Job
- 235cc Intake Ports
- 80cc+ Exhaust Ports
- Bead Lock Intake Valve, 2.125'' x 5.006'' Overall Valve Length
- Bead Lock Exhaust Valve, 1.600'' x 5.024'' Overall Valve Length
- PAC Racing Valve Springs
- 10° Retainers
- 10° Bead Lock Valve Keepers
- 7/16'' Rocker Studs
- Adjustable 5/16'' Guide Plates
- Viton Valve Seals
- Hardened Spring Cup
- Intake Valve Seats
- Exhaust Valve Seats
- Bronze Valve Guides
- Standard or Spread Port Exhaust Bolt Pattern
