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Edelbrock Cyl Head BBC Victor Jr 24 Deg Rect Port 300cc 106cc Combustion Chamber

SKU: EDE77485

Cylinder Heads

EDE Victor Cylinder Head...

Edelbrock Cyl Head BBC Victor Jr 24 Deg Rect Port 300cc 106cc Combustion Chamber

SKU: EDE77485

Cylinder Heads

EDE Victor Cylinder Head...

A$3,598.20
IN STOCK! Est Ship 4-7 days. In stock at 2 locations (more than 10 available)

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Description

Cylinder Head - Victor JR. - Assembled - 2.250 / 1.900 in Valves - 300 cc Intake - 106 cc Chamber - 1.550 in Springs - Angle Plug - Aluminum - Big Block Chevy - Each

Edelbrock Cyl Head BBC Victor Jr 24 Deg Rect Port 300cc 106cc Combustion Chamber

The Edelbrock part #77485 Big-Block Chevy Victor Jr. 24deg cylinder head features an extra thick deck and extra material in the spring pockets for a heavy-duty casting that can be used with high-lift cam and heavy spring combinations. Edelbrock equips the complete 774815 cylinder head with a spring packages to suit hydraulic roller cams. The 300cc rectangle ports produce impressive flow and great power on competition big-blocks up to 510 c.i.d. with 4.310" or larger bore. Exhaust port exits are raised .534" to greatly improve exhaust flow and power.

Additional Information

Edelbrock part #77485 Victor Jr. 24 Degree is a complete cylinder head designed for Big Block Chevy 396-502 V8 engines. The 300cc rectangle ports produce impressive flow on competition big-blocks up to 510 c.i.d. with 4.310" or larger bore.

Application Summary

Chevrolet:Big-Block Mark IV:396 (6.5L)-502 (8.2L)

Part Type

Engine Cylinder Head

Data: v4.2 - Upd: 2026-11-08 08:19:35

Features

  • For Complete Heads Use PN[77459]

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

CNC Ported:No
Camshaft Type:Hydraulic Roller
Combustion Chamber Volume:106
Construction Type:Complete
Cylinder Head Type:Rectangular Port
Deck Thickness:0.5625
Description:Victor Jr. Series Cylinder Head
EGR Port:No
Emission:Non-Emissions
Engine Make/Size:Chevy Big Block (396-502)
Exhaust Port Location:+0.500
Exhaust Runner Volume:129
Exhaust Valve Diameter:1.90
Family:Victor Jr.
Finish:Cast Aluminum
Flange Type:Rectangle Intake
Grade Type:Performance
Guide Material:Manganese Bronze
Guide Plate Material:Hardened Steel
Guide Plates Included:Yes
Horsepower:600-800
Intake Runner Volume:300
Intake Valve Diameter:2.25
Material:Aluminum
Part Number:ede77485
Push Rod Diameter:(Suggested) 0.375
Quantity:Sold Individually
Retainer Included:Yes
Rocker Arm Stud Diameter:0.4375
Seat Angle:Exhaust 45 deg/Intake 45
Seat Material:Ductile Iron
Series:Victor Jr.
Type:Complete
Usage:Racing
Valve Angle:24
Valve Included:Yes
Valve Spring Diameter:1.55
Valve Spring Maximum Lift:0.700
Valve Springs Included:Yes
Valve Stem Diameter:0.3438

Product Downloads

# Document Type Download
1. Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 00:25:30

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Edelbrock
StreetFX SKU ede77485
SFX Item ID 4237315
Accounting SKU ede-77485
Manufacturer SKU 77485
Manufacturer UPC 85347774852
Alternative References 77485, EDB77485, EDL-77485

Cylinder Head, Victor Jr. 24 degree Rectangular Port, Aluminum, Assembled, Chevy, Big Block, Each

These Edelbrock Victor Jr. 24 degree rectangular port cylinder heads for Big Block Chevy feature smaller 300cc intake ports designed for competition engines up to 510 cu. in. with 4.250 in. bores or larger. They are ideal for throttle control devices common in Super class racing today. The cylinder heads include 2.250 in. intake and 1.900 in. exhaust valves with 11/32 in. stems.

Product Attributes
BrandEdelbrock
Manufacturer's Part Number77485
Part TypeCylinder Heads
Product LineEdelbrock Victor Jr. 24 Degree Rectangular Port Cylinder Heads for Big Block Chevy
UPC085347774852
Combustion Chamber Volume (cc)106
Intake Runner Volume (cc)300cc
Exhaust Runner Volume (cc)128cc
Cylinder Head StyleAssembled
Cylinder Head MaterialCast aluminum
Camshaft StyleHydraulic roller
Intake Port ShapeRectangular
Intake Valve Diameter (in.)2.250 in.
CNC-Machined Combustion ChamberNo
CNC-Machined Intake RunnerNo
CNC-Machined Exhaust RunnerNo
Combustion Chamber StyleSemi-open
Intake Port LocationStandard
Exhaust Port ShapeSquare
Exhaust Port LocationRaised
Intake Valves IncludedYes
Exhaust Valves IncludedYes
Exhaust Valve Diameter (in.)1.900 in.
Valve Springs IncludedYes
Maximum Valve Lift (in.)0.775 in.
Outside Diameter of Outer Spring (in.)1.540 in.
Damper Spring IncludedNo
Number of Springs Per ValveDual
Retainers IncludedYes
Retainer MaterialSteel
Locks IncludedYes
Lock Style7 degree
Valve Stem Seals IncludedYes
Valve Stem Seal StylePositive stop
Rocker Arm Studs IncludedYes
Rocker Arm Nut Thread Size7/16 in.-20
Rocker Arms IncludedNo
Rocker Arm Nuts IncludedNo
Guideplates IncludedYes
Guideplate Pushrod Size3/8 in.
Valve Cover Mounting StylePerimeter bolt
Accessory Bolt Holes DrilledYes
Intake Valve Angle24
Valve Guides IncludedYes
Valve Guide MaterialManganese bronze
Valve Seats MachinedYes
Valve Seat Machine Style3-angle
Valve Seat MaterialDuctile iron
Cylinder Head ColorNatural
Steam Holes DrilledNo
Machined for O-RingNo
Heat CrossoverNo
RemanufacturedNo
QuantitySold individually.

Manufacturer Attributes
Quantity Sold Individually
Seat Material Ductile Iron
Retainer Included Yes
Valve Included Yes
Guide Plate Material Hardened Steel
Seat Angle Exhaust 45 deg/Intake 45
Valve Spring Diameter 1.55
Flange Type Rectangle Intake
Exhaust Port Location +0.500
Exhaust Runner Volume 129
EGR Port No
Horsepower 600-800
Construction Type Complete
Intake Valve Diameter 2.25
Camshaft Type Hydraulic Roller
Deck Thickness 0.5625
Valve Angle 24
Valve Springs Included Yes
CNC Ported No
Grade Type Performance
Combustion Chamber Volume 106
Exhaust Valve Diameter 1.90
Valve Spring Maximum Lift 0.700
Guide Material Manganese Bronze
Series Victor Jr.
Material Aluminum
Family Victor Jr.
Push Rod Diameter (Suggested) 0.375
Intake Runner Volume 300
Rocker Arm Stud Diameter 0.4375
Guide Plates Included Yes
Valve Stem Diameter 0.3438
Product Class Engine Cylinder Head
Construction/Type Edelbrock part #77485 Victor Jr. 24 Degree is a complete cylinder head designed for Big Block Chevy 396-502 V8 engines. The 300cc rectangle ports produce impressive flow on competition big-blocks up to 510 c.i.d. with 4.310" or larger bore.
Vehicle Designations Chevrolet:Big-Block Mark IV:396 (6.5L)-502 (8.2L)
Vehicle Brief Edelbrock BBC Cylinder Head
Market Description The Edelbrock part #77485 Big-Block Chevy Victor Jr. 24deg cylinder head features an extra thick deck and extra material in the spring pockets for a heavy-duty casting that can be used with high-lift cam and heavy spring combinations. Edelbrock equips the complete 774815 cylinder head with a spring packages to suit hydraulic roller cams. The 300cc rectangle ports produce impressive flow and great power on competition big-blocks up to 510 c.i.d. with 4.310" or larger bore. Exhaust port exits are raised .534" to greatly improve exhaust flow and power.

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