Brand: Airflow Research (AFR)
Manufacturer's Part Number: 912
Part Type: Cylinder Heads
Product Line: AFR 190cc Vortec Eliminator Street Cylinder Heads
Automotive Fittings Part Number: AFR-0912
Combustion Chamber Volume (cc): 65
Intake Runner Volume (cc): 190cc
Exhaust Runner Volume (cc): 64cc
Cylinder Head Style: Assembled
Cylinder Head Material: Cast aluminum
Intake Port Shape: Rectangular
Intake Valve Diameter (in.): 2.020 in.
CNC-Machined Combustion Chamber: Yes
CNC-Machined Intake Runner: No
CNC-Machined Exhaust Runner: No
Combustion Chamber Style: Heart
Intake Port Location: Standard
Exhaust Port Shape: Square
Exhaust Port Location: Raised
Spark Plug Style: Straight
Intake Valves Included: Yes
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in.): 1.600 in.
Valve Springs Included: Yes
Maximum Valve Lift (in.): 0.600 in.
Camshaft Style: Hydraulic roller
Outside Diameter of Outer Spring (in.): 1.290 in.
Damper Spring Included: Yes
Number of Springs Per Valve: Dual
Retainers Included: Yes
Retainer Material: Chromoly steel
Locks Included: Yes
Lock Style: 7 degree
Valve Stem Seals Included: Yes
Rocker Arm Studs Included: Yes
Rocker Arm Nut Thread Size: 3/8 in.-24
Rocker Arms Included: No
Rocker Arm Nuts Included: No
Guideplates Included: Yes
Guideplate Pushrod Size: 5/16 in.
Valve Cover Mounting Style: Center and perimeter bolt
Accessory Bolt Holes Drilled: Yes
Intake Valve Angle: 23
Exhaust Valve Angle: 23
Valve Guides Included: Yes
Valve Guide Material: Bronze
Valve Seats Machined: Yes
Valve Seat Machine Style: 3-angle
Valve Seat Material: Ductile iron
Cylinder Head Color: Natural
Steam Holes Drilled: No
Oiling Style: Through pushrod
Machined for O-Ring: No
Heat Crossover: No
Remanufactured: No
Quantity: Sold as a pair.
Description:
AFR 190cc Vortec Eliminator Street cylinder heads have exceptional flow characteristics, are 50-state street legal, and the preferred choice over rebuilt factory heads. They feature 100 percent CNC-ported chambers, A356 aluminum castings, and high-quality components.

These heads are recommended for street, strip, and towing engines operating up to 6,000 rpm from 350 to 383 cu. in. For performance, strength, and ease, install AFR 190cc Vortec Eliminator Street cylinder heads.

Additional features include:

* 3/4 in. extra-thick head deck
* 2.020 in. intake and 1.600 in. exhaust valves
* Center and perimeter valve cover bolt patterns
* 0.100 in. raised exhaust port
* Not compatible with self-aligning rocker arms