
AFR - AIRFLOW RESEARCHPART NUMBER: 033-1121
227cc Eliminator Race Aluminum Cylinder Heads SB-Chevy
$2,69460$2994.00You Save$299.40
Competition Package Race Ready CNC Porting Eliminator HeadsStandard Exhaust Port Configuration 227cc Intake Port 80cc Exhaust Port
- 227cc Eliminator Race Aluminum Cylinder Heads
- SB-Chevy
- Competition Package Race Ready CNC Porting
- 65cc Combustion Chambers
- Standard Exhaust Port Configuration
- Angle Spark Plug
- Assembled
- Sold in Pairs, 2/pkg.
Small Block Chevy 227cc Eliminator Race Basic Package Components 100% CNC Ported Combustion Chambers 100% CNC Ported Exhaust Ports 100% CNC Ported Intake Ports Competition 5-Angle Valve Job Intake Valve, 2.100' x 5.006' o.a.l. Exhaust Valve, 1.600' x 5.024' o.a.l. 1.550' OD Solid Roller Dual Valve Spring, 225 lbs. on seat, .710' maximum lift, max RPM 7200-7400 10º Manley 4140 Chrome Moly Retainers 10º Valve Locks 7/16' Rocker Studs Adjustable 5/16' Guide Plates Viton Valve Seals Hardened Spring Cups Intake Valve Seats Exhaust Valve Seats Bronze Valve Guides Small Block Chevy 227cc Eliminator Race Head Specifications Head Torque w/Moly Lube 65-70 Ft. Lbs. Rocker Stud Torque 55 Ft. Lbs. Intake Port Gasket, 1.310' x 2.180' w/ 3/8' radius Fel-Pro 375-1206 - DO NOT PORT MATCH Intake Manifold to Fel-Pro Gasket. Exhaust Port Gasket Fel Pro 375-1405 Head Gasket 350ci Fel Pro 375-1003
400ci Fel Pro 375-1014Head Bolts & Studs Standard ARP Head Bolt Washers Manley Standard Stud Girdle AFR Offset 033-6208 Suggested Manifold AFR p/n 033-4801, AFR p/n 033-4802 or Edelbrock Vic Jr p/n 350-2975 or Super Victor p/n 350-2925 Spark Plug Starting Range Autolite 3910 Combustion Chambers 65cc Intake Port 227cc Exhaust Port 80cc Spring Pocket can be cut to 1.680, no deeper. Valve Spacing 60/40 Rocker Arms .450' Offset / Shaft Mount Valve Angle 23° Angle Mill .008' per cc Flat Mill .006' per cc NOTE: Flat and Angle mills might require a .120' thick head gasket.
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
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Part TypeCylinder Head
BrandAFR - AIRFLOW RESEARCH
Package Height8.9
Package Width12.1
Package Length24.5
Weight64.85 PG
Part CategoryPerformance Parts
Cylinder Head MaterialAluminum
Intake Port LocationStandard
Rocker Arm Nut Thread Size (In.)7/16"-20
Exhaust Valves IncludedYes
Locks IncludedYes
Retainers IncludedYes
Lock Style10 degree
Guideplates IncludedYes
Rocker Arms IncludedNo
Oiling StyleThrough pushrod
Rocker Arm Nuts IncludedNo
Cylinder Head FinishNatural
Valve Seats MachinedYes
Intake Valve Angle23
Maximum Valve Lift0.71 in (18.034 mm)
Valve Seat MaterialDuctile iron
Heat CrossoverNo
Number Of Springs Per ValveDual
Valve Springs IncludedYes
Spark Plug StyleAngled
Valve Seat Machine Style3-angle
Damper Spring IncludedYes
Valve Guides IncludedYes
Cnc-Machined Intake RunnerYes
Intake Valves IncludedYes
Combustion Chamber StyleHeart
QuantitySold as a pair
Valve Stem Seals IncludedYes
Intake Valve Diameter2.1 in (53.34 mm)
Accessory Bolt Holes DrilledYes
Exhaust Runner Volume (Cc)80
Exhaust Port LocationRaised
Valve Guide MaterialBronze
Outside Diameter Of Outer Spring1.55 in (39.4 mm)
Combustion Chamber Volume (Cc)68
Machined For O-RingNo
Exhaust Valve Angle23
Steam Holes DrilledNo
Rocker Arm Studs IncludedYes
Cylinder Head StyleAssembled
Part FitmentSemi Universal
Valve Cover Mounting StylePerimeter bolt
Retainer MaterialChromoly steel
Intake Runner Volume (Cc)227
Cnc-Machined Exhaust RunnerYes
Cnc-Machined Combustion ChamberYes
Exhaust Valve Diameter1.6 in (40.64 mm)
Vendor Part Number1121
Package Qty1
Package TypeEA
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