Brand:
Airflow Research (AFR)
Manufacturer's Part Number:
Part Type:
Top End Kits
Product Line:
AFR Enforcer Top End Kits
Cylinder Heads Included:
Yes
Camshaft Included:
No
Camshaft Type:
Hydraulic Roller Tappet
Intake Manifold Included:
Yes
Fuel Delivery Style:
Carbureted
Carburetor Included:
No
Throttle Body Included:
No
Fuel Rails Included:
No
Fuel Injectors Included:
No
Intake Material:
Aluminum
Intake Color:
Natural
Intake Style:
Single plane
Intake Manifold Name:
Airflow Research Enforcer
Timing Chain and Gears Included:
No
Lifters Included:
No
Gaskets Included:
Yes
Cylinder Head Style:
Assembled
Cylinder Head Material:
Cast aluminum
Cylinder Head Color:
Natural
Combustion Chamber Volume (cc):
64
CNC-Machined Combustion Chamber:
No
Combustion Chamber Style:
Heart
Intake Runner Volume (cc):
185cc
Exhaust Runner Volume (cc):
64cc
CNC-Machined Intake Runner:
No
CNC-Machined Exhaust Runner:
No
Intake Port Location:
Standard
Intake Port Shape:
Rectangular
Exhaust Port Shape:
Square
Exhaust Port Location:
Standard
Spark Plug Style:
Angle
Intake Valves Included:
Yes
Intake Valve Diameter (in.):
2.020 in.
Exhaust Valves Included:
Yes
Exhaust Valve Diameter (in.):
1.600 in.
Intake Valve Angle:
20
Exhaust Valve Angle:
20
Valve Springs Included:
Yes
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 Arms Included:
No
Rocker Arm Studs Included:
Yes
Rocker Arm Nuts Included:
No
Guideplates Included:
Yes
Guideplate Pushrod Size:
5/16 in.
Pushrods Included:
No
Valve Covers Included:
Yes
Valve Cover Material:
Cast aluminum
Valve Cover Color:
Polished
Valve Cover Mounting Style:
Perimeter bolt
Accessory Bolt Holes Drilled:
Yes
Valve Guides Included:
Yes
Valve Seats Machined:
Yes
Valve Seat Machine Style:
3-angle
Valve Seat Material:
Ductile iron
Steam Holes Drilled:
No
Machined for O-Ring:
No
Heat Crossover:
No
Quantity:
Sold as a kit.
Notes:
Designed for 8.2 deck height.
AFR Enforcer Top End Kits
AFR offers Enforcer top-end kits for a wide range of Chevy and Ford small block engine applications from the 1950s and up. The kits include straight or angle plug Enforcer cylinder heads (* see below)—plus single or dual plane intakes, valve covers, gaskets, head bolts, intake manifold bolts, spark plugs and more. Order the kit recommended for your year/make and engine.
* AFR SBC Enforcer cylinder heads feature Permanent Mold "As-Cast" Technology surfaces on the intake runners, exhaust runners and combustion chambers that allow for extremely accurate and repeatable port location/performance. These budget-friendly heads are perfect for your 350 to 400 cu. in. engine operating below 6,000 rpm. They come fully assembled with the identical components found in AFR's higher end CNC-ported cylinder heads, such as ARP rocker studs, PAC Racing springs, Viton® valve seals, AFR adjustable guide plates, machined bead valve locks, hardened spring cups and ductile iron seats, and one -piece 8mm 21 4N stainless steel valves.
