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DISCOUNTS FOR ALL ACTIVE AND VETERAN EDUCATORS FIREFIGHTERS LAW ENFORCEMENT MEDICAL MILITARY CALL CHAT EMAIL TEXT FOR MORE DETAILS MAY EXCLUDE CERTTAIN ITEMS AND SOME RESTRICTIONS APPLY

AFR 210cc LSX \"ENFORCER\" 15 Degree Street Cylinder Head (Bare)

AFR 210cc LSX "ENFORCER" 15 Degree Street Cylinder Head (Bare)

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The Enforcer LS heads are listed as LS1 heads, simply because the cathedral-port head requires a 3.900-inch minimum bore size to fit the intake and exhaust valves without undue shrouding or potential outright physical contact.

The 210cc intake runner flows 262cfm at .600 inch of lift, while the 82cc exhaust runner flows 207cfm at the same .600 inch of lift - which is better than 243/799 flow numbers we've seen, on both sides of the head.

The 64cc combustion chamber volume allows for decent compression numbers. It houses a 2.020-inch stainless-steel intake valve and a 1.600-inch stainless exhaust valve, both in the familiar 8mm small-block stem diameter and riding in bronze valve guides.

The assembled version of the head features a premium-grade, chrome-silicon 1.290-inch-diameter dual valvespring with 140 pounds on the seat and is good for .600 inch of maximum lift at 6,500 rpm. Those specs will cover what's found on a typical street LS engine.

Holding those springs in place is a set of steel 7-degree retainers and AFR's standard 7-degree 8mm valve locks. The bare "No Parts" version of the LS Enforcer head will carry the part number 1502, while the fully assembled version will be P/N: 1501.

Since we know everyone in the LS world is going to ask how and why these heads are better than the best OEM cathedral-port cylinder heads, we decided to pose that exact question to Tim Torrecarion, marketing and sales director for AFR, directly. "Performance-wise, I would say the Enforcer and 243/799 heads are comparable," Torrecarion explains. "But, the main advantages of the Enforcer heads are that they are brand new versus used, and that they come with high-quality valvetrain components - PAC Racing valvesprings, Viton valve seals, hardened spring cups, machine locks, ductile-iron seats, and AFR stainless-steel valves. Those are the same components you get with our full-CNC cylinder heads."

LIFT----0.200---0.300---0.400---0.500---0.550---0.600
Intake--148-----209-----253-----268-----262-----262
Exhaust-105-----150-----180-----199-----204-----207


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  • Model: 1502
  • FROM: AFR (AIR FLOW RESEARCH)

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we added this on Wednesday 05 February, 2020.

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