AFR AFR1121-60 CHEV SB 227CC ELIMINATOR COMP HEADS 65CC CHAMBER 1 PAIR COMPLETE

$3,745.00
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AFR AFR1121-60 CHEV SB 227CC ELIMINATOR COMP HEADS 65CC CHAMBER 1 PAIR COMPLETE
You'll be the baddest thing on four wheels with AFR 227cc SBC Eliminator Competition Racing heads. These Competition package heads kick up your power production. Intake ports, exhaust ports and cylinder heads are 100 percent CNC-ported with finer machine levels and improved port shaped details for optimum flow characteristics. Proudly made in the USA, these AFR 227cc SBC Eliminator heads have a 3/4 in. thick head deck ideal for nitrous or blower applications and come complete and ready to run with AFR power-proven components for ultimate power and reliability. Or, choose "bare" heads (no parts) to design your own ultimate power package. These heads are available in standard and spread port exhaust. Bolt on performance--AFR 227cc SBC Eliminator Competition Racing heads.60cc Chambers Upgrade
Specs:Application: Chev Small Block 302-327-350-400 C.I.D
Cylinder Head StyleAssembled
Cylinder Head MaterialAluminum
Cylinder Head FinishNatural
Combustion Chamber Volume (cc)60
CNC-Machined Combustion ChamberYes
Intake Runner Volume (cc)227cc
Exhaust Runner Volume (cc)80cc
CNC-Machined Intake RunnerYes
CNC-Machined Exhaust RunnerYes
Combustion Chamber StyleHeart
Intake Port ShapeRectangular
Intake Port LocationStandard
Exhaust Port ShapeSquare
Exhaust Port LocationRaised
Spark Plug StyleAngle
Intake Valves IncludedYes
Intake Valve Diameter (in)2.100 in.
Exhaust Valves IncludedYes
Exhaust Valve Diameter (in)1.600 in.
Valve Springs IncludedYes
Maximum Valve Lift (in)0.710 in.
Outside Diameter of Outer Spring (in)1.550 in.
Damper Spring IncludedYes
Number of Springs Per ValveDual
Retainers IncludedYes
Retainer MaterialChromoly steel
Locks IncludedYes
Lock Style10 degree
Valve Stem Seals IncludedYes
Valve Stem Seal StyleViton®
Rocker Arm Studs IncludedYes
Rocker Arm Nut Thread Size7/16-20 in.
Rocker Arms IncludedNo
Rocker Arm Nuts IncludedNo
Guideplates IncludedYes
Guideplate Pushrod Size5/16 in.
Valve Cover Mounting StylePerimeter bolt
Accessory Bolt Holes DrilledYes
Intake Valve Angle23
Exhaust Valve Angle23
Valve Guides IncludedYes
Valve Guide MaterialBronze
Valve Seats MachinedYes
Valve Seat Machine Style3-angle
Valve Seat MaterialDuctile iron
Steam Holes DrilledNo
Oiling StyleThrough pushrod
Machined for O-RingNo
Heat CrossoverNo
QuantitySold as a pair.
Notes60/40 Valve Spacing ,not compatible with self-aligning rocker arms. .050 Off-set or shaft mount rocker arms recommended for optimized Geometry. Exhaust port is raised 0.250 in. over stock. These cylinder heads are competition ported.

(AFR1121-60)

SKU AFR1121-60
Model # AFR1121-60
Brand AFR - Air Flow Research
Shipping Weight 1.0000kg
Unit Of Measure ea

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