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AFR | Enforcer Aluminum Cylinder Heads
These cylinder heads feature AFR's Permanent Mold "As-Cast" Technology surfaces on the intake runners, exhaust runners, and combustion chambers that allows for extremely accurate and repeatable port location/performance. This budget friendly head is perfect for your 350 to 400 cubic inch operating below 6000 RPM.
Part Type: Cylinder Head
Application: Chevrolet Small Block
Cylinder Head Material: A356 Aluminum
Bare or Assembled: Assembled
Combustion Chamber Size: 64cc
CNC Machined Combustion Chambers: No
Intake Valve Angle: 23
Exhaust Valve Angle: 23
Intake Port Volume: 195cc
CNC Machined Intake Port: No
Intake Port Flow: 251 cfm @ .600" Lift/ 28
Intake Port Location: Standard
Intake Port Shape: Rectangular
Intake Port Dimensions: 2.080" H x 1.270" x 5/16 Radius
Exhaust Port Volume: 76cc
CNC Machined Exhaust Port: No
Exhaust Port Flow: 197 cfm @ .600" Lift/ 28
Exhaust Port Location: Standard
Exhaust Port Shape: Square
Exhaust Port Dimensions: 1.380" x 1.420"
Spark Plug Style: Straight
Suggested Spark Plug: 14mm x .750"
Valve Guides: Yes
Valve Guide Spacing: N/A
Valve Stem Diameter: 8mm
Valve Seats: Yes (Ductile Iron)
Valve Job: 3-Angle
Intake Valve Diameter: 2.020"
Intake Valve Included: Yes
Exhaust Valve Diameter: 1.600"
Exhaust Valve Included: Yes
Suggested Valve Length: Intake: 5.000"/Exhaust: 5.030"
Valve Spring Pockets: 1.580" O.D. (Do not machine spring pad any deeper!)
Valve Springs Included: Yes, 1.290" Dual
Valve Spring Application: Hydraulic Roller, 140lbs. Seat, .600" Max Lift
Valve Springs Retainers Included: Yes
Valve Locks Included: Yes (7 Degree)
Valve Seals Included: Yes
Rocker Studs Included: Yes (3/8")
Guide Plates Included: Yes (5/16")
Valve Cover Mounting Style: Perimeter
Steam Holes Drilled: No
Heat Crossover: No
Manufacturer: Airflow Research
Manufacturer's Part Number: 1001
Weight: N/A
Warranty: Race Application, No warranty expressed or implied | https://www.airflowresearch.com/warranty/
Quantity: Sold as Each
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