Dart Race Series 18 Degree Cylinder Heads for Small Block Chevy, Cylinder Head, Race Series 18 Degree, Aluminum, Bare, 67cc Chamber, 237cc Intake Runner,Chevy,327/ 350/ 400,Ea...
Dart Cylinder Heads
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Cylinder Head, Race Series 18 Degree, Aluminum, Bare, 67cc Chamber, 237cc Intake Runner,Chevy,327/ 350/ 400,Ea... Improve performance over standard 23 degree cylinder heads.
These Dart Race Series 18 degree cylinder heads for small block Chevy offer much improved flow and performance characteristics over conventional heads.
Features include:
* Shallow combustion chamber design to improve combustion and allow the use of larger valves for improved airflow
* 67cc as-cast chamber volume can be machined down to 48cc
* Interlocking ductile iron valve seats are compatible with stainless steel or titanium valves
* Valve seats will accommodate up to 2.180 in. intake and 1.625 in. exhaust valves | Part Number: | DRT-14100000 | | Cylinder Head Style: | Bare | | Cylinder Head Material: | Aluminum | | Cylinder Head Finish: | Natural | | Combustion Chamber Volume (cc): | 67 | | CNC-Machined Combustion Chamber: | No | | Intake Runner Volume (cc): | 237cc | | CNC-Machined Intake Runner: | No | | CNC-Machined Exhaust Runner: | No | | Combustion Chamber Style: | Heart | | Intake Port Shape: | Rectangular | | Intake Port Location: | Standard | | Exhaust Port Shape: | Square | | Exhaust Port Location: | Spread | | Spark Plug Style: | Angle | | Intake Valves Included: | No | | Exhaust Valves Included: | No | | Valve Springs Included: | No | | Damper Spring Included: | No | | Retainers Included: | No | | Locks Included: | No | | Valve Stem Seals Included: | No | | Rocker Arm Studs Included: | No | | Rocker Arm Nut Thread Size: | 7/16-20 in. | | Rocker Arms Included: | No | | Rocker Arm Nuts Included: | No | | Guideplates Included: | No | | Valve Cover Mounting Style: | Perimeter bolt | | Accessory Bolt Holes Drilled: | Yes | | Intake Valve Angle: | 18 | | Exhaust Valve Angle: | 18 | | Valve Guides Included: | Yes | | Valve Guide Material: | Manganese bronze intake/Phosphorous bronze exhaust | | Valve Seats Machined: | Yes | | Valve Seat Machine Style: | 4-angle intake/3-angle exhaust | | Valve Seat Material: | Ductile iron | | Steam Holes Drilled: | No | | Oiling Style: | Through pushrod | | Machined for O-Ring: | No | | Heat Crossover: | No | | Quantity: | Sold individually. | | Notes: | Features dual drilled exhaust flange for standard and spread port headers. | |
