Edelbrock - 618369
Cylinder Head
Chevrolet
Big Victor
Big Block (Pro Port)
HIP d
14-deg. Intake Valve
Edelbrock products offer improved performance and aesthetics for a broad array of vehicles and engines. 'Proven performance' is the philosophy by which Edelbrock was founded and it continues to this day with the highest standards for performance and quality. Edelbrock core products are engineered, manufactured, and tested in the USA to ensure the best quality possible. This is further backed by some of the best warranties in the industry and a highly qualified technical support staff.
Cylinder Head Specifications: Combustion chamber volume: 92cc; Intake runner volume: 442 (lh) / 451 (rh); Exhaust runner volume: 189cc; Intake valve diameter: 2.45" (Valves Not Included); Exhaust valve diameter: 1.85" (Valves Not Included); Valve stem diameter: N/A; Valve guides: Manganese bronze; Deck thickness: N/A; Valve spring diameter: Pocket diameter 1.76" (springs not included); Valve spring maximum lift: N/A; Rocker stud: Use Jesel KPS-381754 shaft-mount; Guideplate: N/A; Pushrod diameter: N/A; Valve angle: 18deg x 4.0deg intake; 9deg x 3.9deg exhaust; Exhaust port location: N/A; Spark plug fitment: 14mm x 3/4 reach, gasket seat. Intended for high output, large cubic inch racing engines with 4.84" bore spacing, this head is an improvement over existing 18deg designs, such as the Big Chief & Big Duke. The casting is made from A-356 aluminum and is Hot Isostatic Pressing processed (HIP) for superior strength, durability, dimensional stability and exceptional finish quality. These cylinder head features CNC ported intake ports and a raised exhaust runner design for improved flow efficiency. Chambers are fully CNC ported and extra material is included in the deck to allow fine tuning of the combustion chamber design, if desired. Edelbrock and Pat Musi worked with Jesel to improve the valvetrain geometry, delivering Pro-Stock level technology on engines up to 10,000 rpm. Jesel's shaft-mounted system, #KPS-387154, is made from lightweight 7000 series aluminum and features a one-piece stand design that pairs the intake and exhaust stands for improved valvetrain stability. The intake features a 1.820" long fulcrum and is available in 1.60:11.95:1 rocker ratios; the exhaust features a 2.000" long fulcrum and available in 1.60:12.00:1 rocker ratios. Requires Edelbrock valve covers #4259. Match with Edelbrock Victor CNC Series manifolds #28003 and #28005. Pro-Port version available for custom porting.
List 1
PRODUCT NOTES:
CNC Ported - No
Construction Type - Pro-Port Raw
EGR Port - No
Exhaust Valve Diameter - (Suggested) 1.85
Family - Big Victor
Grade Type - Performance
Guide Material - Manganese Bronze
Guide Plates Included - No
Head Casting Number - N/A
Intake Valve Diameter - (Suggested) 2.45
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