Edelbrock.com - Cylinder Heads - Chevrolet - Big Block

CYLINDER HEADS - Chevrolet - Big Block - Victor Jr.


	Performer RPM RPM XT Victor Jr. Victor

Competition & Ultra High-Performance Heads

Edelbrock/Chapman Victor Jr. CNC Oval or Rectangular Port

Chapman Racing CNC-ported version of Edelbrock Performer RPM heads
High-velocity port design is ideal for Super Gas, Super Comp, Hi-Po Marine, all-out street, Pro Brackets
Smaller-than-stock 11/32" valve stems promote excellent flow and lighter valve weight

EDELBROCK/CHAPMAN VICTOR JR. CNC RECTANGULAR PORT
Chamber Size	Intake Port	Intake Valve Size	Exhaust Valve Size	Valve Length	Min. Cross Sectional Area	Bare (single)	With Valves (single)
112cc	325cc	2.250	1.900	+.100	3.19	#60419*	#60409*
Based on Performer RPM head #60559, capable of 700+ hp on a 12.5:1 C.R. 468-inch engine

EDELBROCK/CHAPMAN VICTOR JR. CNC OVAL PORT
112cc	295cc	2.250	1.900	+.100	3.19	#60439*	#60429*
Based on Performer RPM head #60459, capable of 650+ hp on a 12.5:1 C.R. 468-inch engine Note: Sold without springs or retainers for a variety of valvetrain combinations. See Cylinder Heads Specs for information.

Victor Jr. 24� Rectangular Port

Based on the Victor 24° head but with a smaller 300cc intake ports designed for competition engines up to 510 c.i.d. with 4.25" or bigger bores
Ideal for use with the throttle control devices common in Super class racing today
#77459 is finished with a valve job and bowl blending and includes 2.250" intake and 1.900" exhaust valves with 11/32" stems
#77469 is a semi-finished bare head with seats and guides supplied but not installed

VICTOR JR. 24°
For use with mechanical roller cams

Chamber Size	Intake Port Size	Valve Sizes (in/ex)	Bare (single)	Complete (single)
118cc	300cc	2.250"/1.900"	#77469	#77459
BBC Victor Jr 24-deg. Stud Girdle				#7797
Note: The top of the bore may need to be relieved to clear the valves. #77469 heads require professional head preparation.

VICTOR JR. 24°
For use with hydraulic roller cams

*	Not legal for sale or use on pollution controlled motor vehicles.