GM LSx 210cc Enforcer Cyl Head 64cc Assembled - Single Head

AFR 210cc LS1 Enforcer Cylinder Head - Assembled

When you're after reliable performance on a budget, AFR's 210cc LS1 Enforcer heads bring quality without breaking the bank. Made with our Permanent Mold "As-Cast" Technology, these heads provide accurate and repeatable port locations, perfect for LS engines operating below 6300 RPM. Fully assembled with PAC Racing springs, Viton seals, machined bead valve locks, and 8mm 21-4N stainless steel valves, these heads are ready to install. If you’re a DIY enthusiast, we also offer them bare for custom builds.

Included Components

• 8mm Bead Lock Intake Valve: 2.020" x 4.900" O.A.L., AFR #7207
• 8mm Bead Lock Exhaust Valve: 1.600" x 4.900" O.A.L., AFR #7228
• PAC Racing Spring: 1.290" OD, 140 lbs on seat, .600” max lift, Max RPM 6300-6500, AFR #8017
• Chrome Moly Retainers: 7° 1.245” O.D x .885” I.D, AFR #8514
• Bead Lock Valve Keepers: AFR #9007
• Viton Valve Seals: .620" O.D x .490" I.D, AFR #6615
• Hardened Valve Spring Locator: 1.380" O.D x .570" I.D, AFR #8042

Flow Chart

Specifications & Features

• Material: A356 Aluminum
• Intake Port Volume: 210cc
• Exhaust Port Volume: 82cc
• Combustion Chamber Size: 64cc
• Valve Angle: 15°
• Deck Thickness: 0.425"
• Minimum Bore Diameter: 3.900"
• Spark Plug: 14mm x .750" Tapered Seat
• CARB Status: Not legal for highway use; dedicated racing vehicle use only.

Recommended Components

• Head Gasket: Factory GM LS2
• Intake Port Gasket: GM or FAST
• Exhaust Port Gasket: GM#12558573
• Head Bolts (97-03): AFR #6330
• Head Studs (97-03): AFR #6331
• Suggested Manifold: FAST 90mm, 92mm, or 102mm
• Spark Plug Starting Range: NGK TR55