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Airflow Research (AFR) 0992NP - AFR 180cc SBC Eliminator Street Heads

Airflow Research (AFR) 0992NP - AFR 180cc SBC Eliminator Street Heads large image

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  • Cylinder Heads, Eliminator, Bare, Aluminum, 65cc Combustion Chamber, 180cc Intake, Chevy, Small Block, Pair
  • Application Specific
  • Estimated Ship Date: 3/1/2012
 
BrandAirflow Research (AFR)
Manufacturer's Part Number0992NP
Part TypeCylinder Heads
Product LineAFR 180cc SBC Eliminator Street Heads
Summit Racing Part NumberAFR-0992NP
 
Cylinder Head StyleBare
Cylinder Head MaterialAluminum
Cylinder Head FinishNatural
Combustion Chamber Volume (cc)65
CNC-Machined Combustion ChamberYes
Intake Runner Volume (cc)180cc
Exhaust Runner Volume (cc)64cc
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 IncludedNo
Intake Valve Diameter (in)2.020 in.
Exhaust Valves IncludedNo
Exhaust Valve Diameter (in)1.600 in.
Valve Springs IncludedNo
Damper Spring IncludedNo
Retainers IncludedNo
Locks IncludedNo
Valve Stem Seals IncludedNo
Rocker Arm Studs IncludedNo
Rocker Arms IncludedNo
Rocker Arm Nuts IncludedNo
Guideplates IncludedNo
Valve Cover Mounting StyleCenter and perimeter 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 CrossoverYes
QuantitySold as a pair.
NotesNot compatible with self-aligning rocker arms. Competition Street ported.
CalculatorCompression Calculator
 

These AFR 180cc SBC Eliminator street heads are available in your choice of straight or L98 angle plug versions. AFR 180cc heads feature a 75cc or 65cc combustion chamber with a 64cc exhaust port and a 3/4 in. thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight, 8mm, and have a 2.020 in. intake and 1.600 in. exhaust with AFR's hardened ductile iron interlocking valve seats. The AFR 180cc Eliminator street heads' exceptional flow characteristics, 23 degree valve angle, and standard valve spacing make them the perfect street heads for 327 to 350 c.i.d. engines in the idle to 5,500 rpm operating range (higher rpm ranges are possible, depending on the combination of parts). These cylinder heads carry CARB E.O. #D-250-2 when used on 1969-94 applications with the heat riser. AFR 180cc SBC Eliminator street heads are also available for your 1987 and later engines with centerbolt valve covers and two center intake bolts at 72 degree angles, and Vortec-style cylinder heads are available, too. Their dual valve cover bolt pattern is standard and their exhaust port is raised .100 over GM L98 cylinder heads.