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AFR 238cc LS3 Enforcer Cylinder Heads
Cylinder Head, 238cc LS3 Enforcer Head, Assembled, Aluminum, 72cc Chamber, Rectangular Intake Port, Chevy, 6.0L/6.2L/7.0L Small Block LS, Each
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Overview
Brand:
Manufacturer's Part Number:
1803
Part Type:
Product Line:
Summit Racing Part Number:
AFR-1803
Combustion Chamber Volume (cc):
72
Intake Runner Volume (cc):
238cc
Exhaust Runner Volume (cc):
92cc
Cylinder Head Style:
Assembled
Cylinder Head Material:
Cast aluminum
Camshaft Style:
Hydraulic roller
Intake Port Shape:
Rectangular
Intake Valve Diameter (in.):
2.080 in.
CNC-Machined Combustion Chamber:
No
CNC-Machined Intake Runner:
No
CNC-Machined Exhaust Runner:
No
Combustion Chamber Style:
Heart
Intake Port Location:
Standard
Exhaust Port Shape:
Oval
Exhaust Port Location:
Standard
Spark Plug Style:
Angle
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:
No
Retainers Included:
Yes
Retainer Material:
Steel
Locks Included:
Yes
Lock Style:
7 degree
Valve Stem Seals Included:
Yes
Valve Stem Seal Style:
Positive stop
Rocker Arm Studs Included:
No
Rocker Arms Included:
No
Rocker Arm Nuts Included:
No
Guideplates Included:
No
Valve Cover Mounting Style:
Centerbolt
Accessory Bolt Holes Drilled:
Yes
Intake Valve Angle:
12
Exhaust Valve Angle:
12
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
Finish:
Natural
Steam Holes Drilled:
No
Oiling Style:
Through pushrod
Machined for O-Ring:
No
Heat Crossover:
No
Remanufactured:
No
Quantity:
Sold individually.
AFR 238cc LS3 Enforcer Cylinder Heads
AFR's 238 LS3 Enforcer cylinder heads feature its 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. They are the first Enforcer castings with 100 percent AFR design. With a smaller valve and port, these heads outflow your OE LS3 casting by up to 20 cfm at low lifts, offering greater performance potential. The budget-friendly heads are perfect for your OEM engine operating below 6300 rpm. They come fully assembled with the identical components found in AFR's higher end CNC-ported cylinder heads—such as PAC Racing springs, Viton® valve seals, machined bead valve locks (not stamped), hardened spring seats, and one-piece 8mm 21-4N/21-8N stainless steel valves. They're available without any parts for DIY gearheads. Sold as a single piece; two are required per engine.
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