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Vehicle Info NeededEDELBROCKPART NUMBER: 350-77485
Victor Jr. 24° Aluminum Cylinder Head for Big Block Chevy
$1,57095
Ships on 10/20/2026
Lowest Price GuaranteeVictor Jr. 24° Aluminum Cylinder HeadsRectangular Intake Ports: 300cc
- Big Block Chevy 396-502ci
- Port Volume: 300cc/129cc
- Valve Springs for Hydraulic Roller
- Valve Size: 2.25"/1.90"
- 106cc Combustion Chamber
- Assembled, Sold Individually
- A356 aluminum casting heat treated to T6 specifications
- Extra thick deck and extra material in the spring pockets for use with high-lift camshaft and heavy spring combinations
- Exhaust port exits are raised .534" for impressive flow and great power on competition big blocks up to 510ci with 4.310" or larger bore
Combustion Chamber Volume: 106cc Intake Runner Volume: 300cc Exhaust Runner Volume: 128cc Intake Valve Diameter: 2.25' Exhaust Valve Diameter: 1.90' Valve Stem Diameter: 11/32' Valve Guides: Manganese Bronze Deck Thickness: 9/16' Valve Spring Diameter: 1.550' Valve Spring Maximum Lift: 0.700' Rocker Stud: 7/16' Guideplate: Hardened Steel Pushrod Diameter: 3/8' Valve Angle: 24° Exhaust Port Location: Raised .534' Spark Plug Fitment: 14mm x 3/4' Reach,
Gasket SeatValve Lift Intake Exhaust .100' 72 64 .200' 140 122 .300' 213 167 .400' 273 199 .500' 318 223 .600' 342 240 .700' 346 251 Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28' H2O 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
BrandEDELBROCK
Package Height6.8
Package Width10.1
Package Length23.7
Weight40.35 PG
Retainers IncludedYes
Guideplates IncludedYes
Valve Seats MachinedYes
Heat CrossoverNo
Number Of Springs Per ValveDual
Damper Spring IncludedNo
Cylinder Head TypeRectangular Port
Valve Stem Seals IncludedYes
Intake Valve Diameter2.25 in (57.15 mm)
Valve Guide MaterialManganese bronze
Outside Diameter Of Outer Spring1.54 in (39.1 mm)
Steam Holes DrilledNo
Rocker Arm Studs IncludedYes
Retainer MaterialSteel
Cnc-Machined Combustion ChamberNo
Exhaust Valve Diameter1.9 in (48.26 mm)
Part CategoryPerformance Parts
Cylinder Head MaterialAluminum
Intake Port LocationStandard
Rocker Arm Nut Thread Size (In.)7/16"-20
EmissionNon-Emissions
Exhaust Valves IncludedYes
Locks IncludedYes
Engine Make/SizeChevy Big Block (396-502)
Lock Style7 degree
Rocker Arms IncludedNo
Rocker Arm Nuts IncludedNo
Cylinder Head FinishNatural
Intake Valve Angle24
Maximum Valve Lift0.775 in (19.685 mm)
Valve Seat MaterialDuctile iron
FinishCast Aluminum
Valve Springs IncludedYes
UsageCompetition
Valve Seat Machine Style3-angle
Valve Guides IncludedYes
Cnc-Machined Intake RunnerNo
Intake Valves IncludedYes
Combustion Chamber StyleSemi-open
QuantitySold individually
Accessory Bolt Holes DrilledYes
Exhaust Runner Volume (Cc)128
Exhaust Port LocationRaised
TypeComplete
Combustion Chamber Volume (Cc)106
Machined For O-RingNo
PreparationBolt On (Not Required)
Cylinder Head StyleAssembled
Part FitmentSemi Universal
Valve Cover Mounting StylePerimeter bolt
Valve Stem Seal StylePositive stop
Intake Runner Volume (Cc)300
Cnc-Machined Exhaust RunnerNo
Vendor Part Number77485
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
