Part TypeCylinder Head
BrandEDELBROCK
Package Height27.0
Package Width36.0
Package Length48.0
Weight226.0 PG
Carburetor QuantityOne
Intake Manifold IncludedYes
Retainers IncludedYes
Guideplates IncludedYes
Basic Operating Rpm Range1,500-6,500
Pushrods IncludedYes
Oiling StyleThrough head
Intake Manifold Fasteners IncludedYes
Valve Seats MachinedYes
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.548
Heat CrossoverNo
Camshaft StyleHydraulic roller tappet
Number Of Springs Per ValveSingle
Spark Plug StyleStraight
Damper Spring IncludedNo
Valve Lift With Factory Rocker Arm Ratio0.539 int./0.548 exh.
Fuel DeliveryOne Carb
Valve Stem Seals IncludedYes
Intake Valve Diameter1.94 in (49.276 mm)
Rpm Power RangeIdle-5500
Compression Ratio9.0: 1
Advertised Intake Duration296
Valve Guide MaterialManganese bronze
Outside Diameter Of Outer Spring1.46 in (37.1 mm)
Intake Duration At 050 Inch Lift234
Exhaust Duration At 050 Inch Lift238
Camshaft IncludedYes
Steam Holes DrilledNo
Rocker Arm Studs IncludedYes
Advertised Exhaust Duration300
Retainer MaterialSteel
Cnc-Machined Combustion ChamberNo
Duration At 050 Inch Lift234 int./238 exh.
Lifters IncludedYes
Exhaust Valve Diameter1.55 in (39.37 mm)
Part CategoryPerformance Parts
Cylinder Head MaterialAluminum
Intake MaterialAluminum
Intake StyleDual plane
Intake Port LocationStandard
EmissionNot Legal
Intake FinishNatural
Exhaust Valves IncludedYes
Locks IncludedYes
Intake Manifold Gaskets IncludedYes
Engine Make/SizeChevy Small Block
Intake Valve Lift With Factory Rocker Arm Ratio (I0.539
Lock Style7 degree
Rocker Arms IncludedYes
Horsepower315
Cylinder Head FinishNatural
Advertised Duration296 int./300 exh.
Valve Seat MaterialDuctile iron
FinishSatin
Valve Springs IncludedYes
Cylinder Heads IncludedYes
Valve Guides IncludedYes
Cnc-Machined Intake RunnerNo
Intake Valves IncludedYes
QuantitySold as a kit
Accessory Bolt Holes DrilledYes
Head Gaskets IncludedYes
Exhaust Port LocationStandard
Combustion Chamber Volume (Cc)64
Machined For O-RingNo
Timing Chain And Gears IncludedNo
Cylinder Head StyleAssembled
Part FitmentSemi Universal
Valve Stem Seal StylePositive stop
Intake Runner Volume (Cc)170
Cnc-Machined Exhaust RunnerNo
Vendor Part Number45909
Package Qty1
Package TypeEA