Brand: Airflow Research (AFR)
Manufacturer's Part Number: 1381-716
Part Type: Cylinder Heads
Product Line: AFR 195cc SBF Competition Cylinder Heads
Automotive Fittings Part Number: AFR-1381-716
Combustion Chamber Volume (cc): 58
Intake Runner Volume (cc): 195cc
Exhaust Runner Volume (cc): 70cc
Cylinder Head Style: Assembled
Cylinder Head Material: Cast aluminum
Intake Port Shape: Rectangular
Intake Valve Diameter (in.): 2.050 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: Raised
Intake Valves Included: Yes
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in.): 1.600 in.
Valve Springs Included: Yes
Maximum Valve Lift (in.): 0.650 in.
Camshaft Style: Hydraulic roller
Outside Diameter of Outer Spring (in.): 1.270 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: 7/16 in.-20
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: 5-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: Will not accept EGR or AIR pump. Minimum bore diameter of 4.000 in. is required. Exhaust port is raised 0.125 in. over stock. These cylinder heads are competition ported. Not compatible with OEM pistons.
Description:
AFR 195cc SBF competition cylinder heads feature 100 percent CNC-machined intake ports, exhaust ports, and combustion chambers. Manufactured in A356 aluminum and assembled with high-quality components, these AFR 195cc SBF competition heads are recommended for displacements up to 408 cu. in., and operating up to 6500-6800 rpm. They are not compatible with OEM pistons. They are available with or without EGR and air pump, as well as with either 58cc or 72cc chamber sizes.

Components for these AFR cylinder heads include:

* Competition 5-angle valve job
* 8mm bead lock intake valve
* 8mm bead lock exhaust valve
* PAC racing spring 1.270 in. O.D. hydraulic roller dual valve spring; 155 lbs. on seat, .650 in. maximum lift, maximum rpm 7000 to 7200
* 7 degree chromoly retainers
* 7 degree bead lock valve keepers
* 7/16 in. rocker studs
* Adjustable 5/16 in. guide plates
* Viton® valve seals
* Hardened valve spring I.D. locator
* Ductile iron intake valve seats 2.131 in. O.D x 1.680 in. I.D x .375 in. deep
* Ductile iron exhaust valve seats 1.650 in. O.D x 1.350 in. I.D x .375 in. deep
* Bronze valve guides
* Air injector reducer bushing