Victor Jr Big-Block Chevy Cylinder Heads
Victor Jr Big-Block Chevy 77485
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Original Price: $2,284.00
Edelbrock 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.
Combustion Chamber Volume (cc): 106
Intake Runner Volume (cc): 300cc
Exhaust Runner Volume (cc): 128cc
Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Intake Port Shape: Rectangular
Intake Valve Diameter (in.): 2.250 in.
Cylinder Head Finish: Natural
CNC-Machined Combustion Chamber: No
CNC-Machined Intake Runner: No
CNC-Machined Exhaust Runner: No
Combustion Chamber Style: Semi-open
Intake Port Location: Standard
Exhaust Port Shape: Square
Exhaust Port Location: Raised
Intake Valves Included: Yes
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in.): 1.900 in.
Valve Springs Included: Yes
Maximum Valve Lift (in.): 0.775 in.
Outside Diameter of Outer Spring (in.): 1.540 in.
Damper Spring Included: No
Number of Springs Per Valve: Dual
Retainers Included: Yes
Retainer Material: Steel
Locks Included: Yes
Lock Style: 7 degree
Valve Stem Seals Included: Yes
Valve Stem Seal Style: Positive stop
Rocker Arm Studs Included: Yes
Rocker Arm Nut Thread Size: 7/16-20 in.
Rocker Arms Included: No
Rocker Arm Nuts Included: No
Guideplates Included: Yes
Guideplate Pushrod Size:3/8 in.
Valve Cover Mounting Style: Perimeter bolt
Accessory Bolt Holes Drilled: Yes
Intake Valve Angle: 24
Valve Guides Included: Yes
Valve Guide Material: Manganese bronze
Valve Seats Machined: Yes
Valve Seat Machine Style: 3-angle
Valve Seat Material: Ductile iron
Steam Holes Drilled: No
Machined for O-Ring: No
Heat Crossover: No
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.
- Matching stud girdle #7797 must be used with stud mounted rocker arms. Deck thickness: 9/16″, rocker stud diameter: 7/16″, pushrod diameter: 3/8″ (width of slot in guide plate).