AFR3001 - AFR CYLINDER HEADS ALUM ENFORCER AS CAST 325/122CC FITS BB CHEV EACH

AFR 3001 Big Block Chevy ENFORCER CYLINDER HEAD.

Sold Singularly. Need a Quantity of 2 per Engine

BB Chevy, Aluminium, 325cc Intake Runner, 122cc Chambers, Assembled, 24 Degree

AFR's 3001 325cc BBC Enforcer Cylinder heads feature AFR Permanent Mold “As-Cast” Technology surfaces on the intake runners, exhaust runners and combustion chambers that allows for extremely accurate and repeatable port location/performance. This budget friendly head is perfect for your 509 to 540 Cubic Inch operating below 6500 RPM. Heads come fully assembled with the identical components found in their higher end CNC ported cylinder heads; such as ARP rockers studs, PAC Racing springs, viton valve seals, AFR adjustable guide plates, machined bead valve locks (not stamped), hardened spring seats and ductile iron seats (not powdered metal) and one piece 8mm 21 4N Stainless Steel valves.

3-angle Valve Job

As Cast Combustion Chambers

As Cast Exhaust Ports

As Cast Intake Ports

11/32" Intake Valve, 2.250" x 5.500" O.A.L

11/32” Nail Head Exhaust Valve, 1.880” x 5.450” O.A.L.

PAC Racing #1940 1.550” OD Hydraulic Roller Dual Valve Spring 175 lbs. on seat, .725” maximum lift, Max RPM 6500-6700

10º Manley Steel Retainers 1.500” O.D x 1.120” I.D x .705” I.D

10° 11/32" Valve Locks with lashcap recess

ARP 7/16" Rocker Exhaust Studs

ARP 7/16" Rocker Intake Studs

3/8” Guide Plates

11/32" Viton Valve Seals

Hardened Valve Spring I.D Locator 1.550” O.D x .780” I.D