AFR 185cc SBF Renegade 20 Degree Street Heads 1387

These AFR 185cc aluminum cylinder heads for small block Ford engines shave 50 pounds compared to cast iron. These heads are competition ready with a five-angle valve job and CNC-ported combustion chambers, exhaust, and intake ports. The 72cc combustion chambers, 185cc intake runners, and a ¾ in. thick head deck make them a perfect fit with nitrous or forced induction. AFR uses stainless 2.02 in. intake/1.60 in. exhaust valves, 0.600 max lift hydraulic roller dual valve springs, 7-degree Manley steel retainers, â…œ in. ARP rocker studs, and bronze valve guides. They are drilled for ½ in. head bolts and have no provisions for use with an air pump or EGR valve.Brand: Airflow Research (AFR)
Manufacturer's Part Number: 1387
Part Type: Cylinder Heads
Product Line: AFR 185cc SBF Renegade 20 Degree Street Heads
HP Direct Part Number: AFR-1387
Combustion Chamber Volume (cc): 72
Intake Runner Volume (cc): 185cc
Exhaust Runner Volume (cc): 68cc
Cylinder Head Style: Assembled
Cylinder Head Material: Cast aluminum
Camshaft Style: Hydraulic roller
Intake Port Shape: Rectangular
Intake Valve Diameter (in.): 2.020 in.
CNC-Machined Combustion Chamber: Yes
CNC-Machined Intake Runner: Yes
CNC-Machined Exhaust Runner: Yes
Combustion Chamber Style: Heart
Intake Port Location: Standard
Exhaust Port Shape: Square
Exhaust Port Location: Standard
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.
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: Perimeter bolt
Accessory Bolt Holes Drilled: Yes
Intake Valve Angle: 20
Exhaust Valve Angle: 20
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.
Notes: These cylinder heads are competition ported.