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Competition & Ultra High-Performance Heads(CHEVY)

Victor Jr. 23°

Ideal for racers looking for an affordable head that makes maximum power, the Victor Jr. 23° heads are designed for competition and ultra high-performance street small-blocks and accept standard valvetrain hardware. They have a 530-580 hp potential, out-of-the-box, for a cost effective, race-winning set-up. Combustion chamber sizes include 70cc or the 64cc version that is ideal for entry level racers or high-end street. The 64cc combustion chamber yields around 10.2:1 compression in a zero-deck flat-top 350-inch engine, and about 12.5:1 when used with a 12cc domed piston. Both versions of the Victor Jr. 23° head feature high-flow 215cc intake ports with CNC port-matched entries, .300" raised exhaust ports, hardened, ductile iron valve seats and manganese-bronze guides. A 9/16" thick deck surface provides superior gasket retention. See chart for more specs. Match with an Edelbrock Super Victor #2925 manifold for maximum power.

Victor Jr. 23° heads
Chamber Size Bare (single)
70cc #77639
64cc #77569
Victor Jr. 23° heads WITH 2.08"/1.60" valves
Chamber Size With Valves (single)
70cc #77649
64cc #77579
Victor Jr. 23° heads For Hyd. Roller* Or Mechanical Flat Tappet Cams
Chamber Size Complete (single)
70cc #77619
64cc #77589
Victor Jr. 23° heads For Roller Cams
Chamber Size Complete (single)
70cc #77629
64cc #77599

Dyno Test Data

In dyno tests on a 360 c.i.d. engine with 12.5:1 compression ratio, the Victor Jr. 23° heads made 464 ft/lbs. at 5000 rpm and 540 horsepower at 7000 rpm... that's 31 hp more than the leading competitor's as-cast head!

Victor Jr. 23° heads are designed for competition and ultra high-performance street small-block Chevys with standard 23° valvetrain hardware

Important Notes:

  • Use Head Bolt Kits for an easy installation.

    *Check cam manufacturers’ specs for compatibility with valve springs.

  • Edelbrock and Chapman Racing…

    Professionally Prepared, CNC-Ported Heads at an Affordable Price!

    Every set of Edelbrock/Chapman heads are race-ready, out-of-the-box. Edelbrock’s 60+ years of engineering experience combined with the design and machining skills of Chapman Racing produce maximum flow and performance for competition. Circle Track magazine wrote this about Mike Chapman, “He has attained a Zen-like mastery of cylinder head port design through a lifetime of experience… his stuff wins races and championships in everything from Daytona to the short tracks near you.” Edelbrock/Chapman wins races.

    Edelbrock/Chapman Victor 23° High-Port CNC

    Designed for high-output, small-block competition engines, the Victor 23° High-Port CNC heads are ideal for applications that require higher flow levels than those available from standard port heads. Fully CNC-ported by Mike Chapman and his team of expert machinists, these heads have 71cc combustion chambers and come in three intake port sizes. The valve cover rail is raised .600" and the rocker arm minimum offsets are: Intake .350" with zero offset on the exhaust side. These heads require intake and exhaust valves that are +.200" longer than stock or if 1.980" or taller valve spring height is desired, use .300" longer than stock valves. See actual flow figures at 28" of water. Match these heads with our Victor Series High-Port manifolds #2926, #2967, #2968 or #2971 for proven performance and a winning combination. SeeApplication Guide for Edelbrock/Chapman CNC-Ported Small-Block Chevy Heads.

    Edelbrock/Chapman Victor 18° CNC

    Victor 18° CNC heads have fully CNC-machined combustion chambers and CNC-ported intake/exhaust ports by Chapman Racing. An ideal match for Edelbrock Victor Series 18° manifolds, these heads are machined for 1.625" exhaust valves and 2.125" intake valves for the 236cc port and 2.180" intake valves for the 252cc and 256cc ports. They require valves that are +.600" longer than stock with rocker arm minimum offsets of .550" intake and .220" exhaust. Heads can be milled up to .100" to reduce chamber size. The intake flange is drilled for 1- and 2-piece manifolds and includes a center water outlet for auxiliary cooling system options. See actual flow numbers. See Application Guide for Edelbrock/Chapman CNC-Ported Small-Block Chevy Heads.

    Edelbrock/Chapman Victor 15° CNC

    Starting with our Victor 18° head, we rolled over the casting another 3° and raised the valve seat to create two new heads that offer potential performance gains well beyond the 18° design. These heads are fully CNC machined by Chapman Racing Heads in the intake, exhaust and combustion chamber, and feature coolant passages around the center two exhaust seats and the center of the intake flange for auxiliary coolant plumbing. This high-flow port design with a reduced chamber volume makes the #61119 an excellent choice for virtually all forms of racing, while the larger intake port volume of #61139 is better suited to high rpm stick-shift drag racing applications. The intake flange is drilled for both one piece and two-piece 18° intake manifolds and the exhaust bolt holes are Heli-Coiled™ for added strength. #61139 is compatible with all standard 18° intake manifolds but is best matched to high flow drag race manifolds like our Glidden Victor dominator manifold #2859. See Application Guide for Edelbrock/Chapman CNC-Ported Small-Block Chevy Heads

    Important Notes:
    Use Head Bolt Kits for an easy installation.
     

    Big-Block Chevy Cylinder Heads

    Competition & Ultra High-Performance Heads

    Edelbrock/Chapman Victor Jr. CNC Rectangular Port

    Designed for competition big-blocks, this is a Chapman Racing CNC-ported version of the Edelbrock Performer RPM #60559 head. The casting is rolled over 1.5° before machining to decrease the size of the combustion chamber without shrouding the valves. Capable of 700+ hp on a 468-inch engine with 12.5:1 compression, this head comes with 2.25" intake and 1.90" diameter exhaust valves, both using 11/32" stems in Serdi-machined ductile iron seats. The high-velocity design of these heads is ideal for race and high-performance street. Sold without springs or retainers for a variety of valvetrain combinations. See chart below for information.

    Edelbrock/Chapman Victor Jr. CNC Oval Port

    Designed for competition big-blocks, this is a Mike Chapman CNC-ported version of the Edelbrock Performer RPM #60459 oval port head. The casting is rolled over 1-1/2° before machining to decrease the size of the combustion chamber without shrouding the valves. Capable of 650+ hp on a 468-inch engine with 12.5:1 compression, this head comes with 2.25" intake and 1.90" diameter exhaust valves, both using 11/32" stems in Serdi-machined ductile iron seats. The high-velocity design of these heads is ideal for race and high-performance street. Sold without springs or retainers for a variety of valvetrain combos. See chart below for information.

    Edelbrock/Chapman Victor CNC Rectangular Port

    Designed for large cubic-inch and high-horsepower big-blocks, these heads are CNC-ported by Mike Chapman for outstanding flow and horsepower. Designed for maximum race-ready performance, they’re capable of 875+ hp with fully CNC-machined 130cc combustion chambers and standard location 375cc intake ports that are CNC-machined at the entry and from the bowl area to the seat. The .750" raised exhaust ports are fully CNC-machined throughout. These heads deliver race-winning performance at an affordable price… no costly porting required. Get them now, before the competition does! Note: .400" longer-than-stock intake valves must be used unless spring pockets are machined for shorter valves. See chart on next page for information.

    Application Guide for Edelbrock/Chapman Big-Block Chevy Heads:

    Chamber Size Intake Port Intake Valve Size Exhaust Valve Size Valve Length (int/exh) Min. Cross Sectional Area Bare (single) With Valves (single)
    Victor Jr. CNC Rectangular-Port Heads
    112cc 320cc 2.25 1.90 +.100/.100 3.19 #60419 #60409
    Super Gas, Super Comp, Hi-Po Marine, all-out street, Pro Brackets
    Victor Jr. CNC Oval-Port Heads
    112cc 295cc 2.25 1.90 +.100/.100 .3.19 #60439 #60429
    Super Gas, Super Comp, Hi-Po Marine, all-out street, Pro Brackets
    Victor CNC Rectangular-Port Heads
    130cc 375cc 2.30 1.90 +.400/.100 3.25 #77659 N/A
    540+ c.i.d., Super Gas, Super Comp, Hi-Po Marine, Pro Brackets

    Victor Jr. 24° Rectangular Port

    The Victor Jr. 24° head #77459 is based on the Victor 24° head but with a smaller 300cc intake port t that is designed for smaller bore, smaller cubic-inch engines. It is ideal for competition engines up to 510 c.i.d. with 4.25” or bigger bores. Like the Victor 24° head, it has been angle machined 2.4° and the valve locations altered to both improve flow and combustion efficiency. The head shares the same exhaust ports and much improved valve train geometry of the Victor 24°, and the 300cc intake port flows 375+cfm while maintaining good velocity.This greatly improves throttle response and makes this head ideal for use with the throttle control devices common in Super class racing today. #77469 is a semi-finished head with seats and guides supplied but not installed, and #77459 is finished with a valve job and bowl blending and includes 2.25” intake and 1.90” exhaust valves with 11/32” stems. Springs, retainers, and locks are included for typical roller cams used in these applications. Note: The top of the bore may need to be relieved to clear the valves.


    Victor Jr. 24° (as-cast Ports)
    Chamber Size Bare (single) With Valves (single)
    118cc #77469 #77459

    Victor 24° As-Cast Rectangular Port

    The Victor 24° is the best standard port location head available for large bore (4.470" and larger) big-block Chevys. Based on the Victor head #77609, it features a rolled over deck, altered valve locations, partially CNC’d chambers and exhaust throats for cost-effective performance, and revised 118cc combustion chambers. The head has been angle machined 2.4° and the valve locations moved to improve flow and combustion efficiency. The new valve spread accommodates valve sizes up to 2.40" intake or 1.92" exhaust. The 340cc ports are significantly smaller than the 77609 but flow 390 cfm, producing a higher velocity flow for improved throttle response. All geometry has been developed using Pro/E 3-D software to ensure the ultimate valve train tracking and stability. #77409 is finished with a valve job, port match and bowl blending, and comes with 2.30" intake and 1.88" exhaust valves, 1.625" Manley springs (250 lbs. @ 2.000" installed height), and 10° titanium retainers & locks. #77419 is a bare head without port matching or bowl blending. Other features include: 11/32" diameter manganese-bronze valve guides; ductile iron interlocking valve seats; Heli-Coiled™ exhaust bolt holes; and raised exhaust ports capable of flowing 300+ cfm. The valve cover rail is raised an additional .25" to retain the oil during valve adjustments. Matching stud girdle #7796 must be used with stud mounted rocker arms.


    Victor 24° (as-cast)
    Chamber Size Bare (single) With Valves (single)
    115cc #77419 #77409

    Matching Stud Girdle for Victor 24° heads ....#7796

    Victor Bare Rectangular Port

    Victor rectangular port heads have 800+ hp potential for high-rpm or large displacement big-blocks. The intake ports are raised .100" and exhaust ports raised .750" for greatly improved flow and more power. Two auxiliary head bolt holes are included for maximum head gasket retention. Intake valve spring pockets are raised .400", requiring .400" longer-than-stock intake valves unless spring pockets are machined for shorter valves. The valve cover rails have been raised .250" to reduce valve cover leaks. Includes standard valve cover bolt pattern and accepts standard location rectangular-port manifolds. Fits all big-block Chevys. Note: These heads require professional head preparation. See chart for specs.

    Victor (as-cast)
    Chamber Size Bare (single)
    117cc #77609

    Important Notes:
    Use Head Bolt Kits for an easy installation.

    Cylinder Heads for Small-Block Ford

    Street Legal & Street High-Performance Heads

    Performer Ford

    Performer 50-state street legal heads provide outstanding bolt-on performance for 1965-95 289, 302 and 351 Windsor V8s. Capable of 300+ hp when matched with the Edelbrock Performer Power Package, the 1.90" intake valves are for use with stock pistons and the high-flow 2.02" intake valves are for use with aftermarket pistons notched for valve clearance. Will not accept rail rockers. Ford 289-302 V8s require Head Bolt Bushings #9680 and either Edelbrock Head Bolt Kit #8552 (7/16") or stock head bolts. Hardened pushrods required, we recommend Edelbrock #9632. See chart for more specs. Note: 1986 5.0L must have pistons notched for clearance.

    Street legal Performer with 1.90" intake valves
    Chamber Size Bare (single) Complete (single)
    60cc #60319 #60329
    Street legal Performer with 2.02" intake valves
    60cc #60349 #60359
    Street legal Performer with 2.02" intake valves machined for Fel-ProŽ Loc Wire™ gasket
    60cc N/A #60279

    Read about the powerful Edelbrock small-block Ford heads in the article titled "Hot Heads" published in the March 1996 issue of Muscle Mustangs and Fast Fords written by Alan Scrimager.

    Test Results with Edelbrock Performer Total Power Package...

    Engine dynamometer testing was done on a Ford 302 c.i.d. engine with 9.5:1 compression and low octane fuel. The engine was equipped with an Edelbrock intake manifold #2121, Edelbrock Performer-Plus camshaft #2122, Edelbrock Performer Series carburetor #1405 and Edelbrock Performer heads #6025. The results indicated a broad power band with 291 horsepower at 5500 rpm and 309 ft/lbs. of torque at 4000 rpm. See power graph. It's proven performance from a name you can trust... Edelbrock.

    Professionals Use and Recommend Edelbrock Heads

    "Since their introduction, we have sold or recommended Edelbrock Ford heads to over 80 satisfied customers. We use Edelbrock heads because of the ease of installation, excellent top-end power production, and strong low-end torque. We appreciate the excellent out-of-the-box machined surface finish and casting quality, and the heli-coiled bolt holes make for a very durable piece." Charlie Bruno - Charlie's Mustangs, San Jose, California

    Performer RPM Ford

    Designed for non-emissions 289, 302, and 351-Windsor Ford engines, these direct bolt-on heads deliver maximum performance in the 1500-6500 rpm range for high performance street. 1.90" intake valves are for use with stock pistons and high-flow 2.02" intake valves are for aftermarket pistons notched for valve clearance. Will not accept rail rockers. Ford 289-302 V8s require Head Bolt Bushings #9680 and either Edelbrock Head Bolt Kit #8552 (7/16") or stock head bolts. See chart for more specs.

    Read about the powerful Edelbrock small-block Ford heads in the article titled "Hot Heads" published in the March 1996 issue of Muscle Mustangs and Fast Fords written by Alan Scrimager.

    Performer RPM with 1.90" intake valves
    Chamber Size Bare (single) Complete (single)
    60cc #60219* #60229*
    Performer RPM with 2.02" intake valves
    60cc #60249* #60259*
    Performer RPM with 2.02" intake valves machined for Fel-ProŽ Loc Wire™ gasket
    60cc N/A #60269*
    POLISHED Performer RPM with 2.02" intake valves
    60cc N/A #602519*

    Important Notes:
    With Ford heads, use Head Bolt Kits #8552 (7/16") or #8553 (1/2").

    Test Results with the Edelbrock Performer RPM Total Power Package...

    Engine dynamometer testing was done on a Ford 302 c.i.d. engine equipped with an Edelbrock manifold #7121, Performer RPM cam #7122, Performer Series carb #1405 and Performer RPM heads #6025 with 9.5:1 compression and pump gas. The results: 367 hp at 6500 rpm and 340 ft/lbs. of torque at 4500 rpm... proven performance from Edelbrock. See Power Package graph.

    Performer 5.0/5.8L Heads

    Check out the Edelbrock Performer RPM II manifold #7123 … this design outperforms all of the competition!

    Direct bolt-on heads for 1982-95 5.0L and 5.8L (351-W) V8s originally equipped with pedestal mount rocker arms. On a ’93 5.8L engine torque improved more than 80 ft/lbs. over stock when these heads were combined with the Edelbrock Total Power Package. They accept 1982-95 5.0L V8 pedestal mount rocker arms and valvetrains. 1.90" intake valves are for use with stock pistons and 2.02" intake valves are for aftermarket pistons notched for valve clearance. These heads will not accept rail rockers. Ford 5.0L engines require Edelbrock Head Bolt Bushings #9680 and either Edelbrock Head Bolt Kit #8552 (7/16") or stock head bolts. See chart for more specs. Note: 1986 5.0L must have pistons notched for clearance.

    See 5.0L Power Package Graph for matching components. Read about the powerful Edelbrock small-block Ford heads in the article titled "Hot Heads" published in the March 1996 issue of Muscle Mustangs and Fast Fords written by Alan Scrimager. Also read "Aluminum Head Meltdown" published in the October 1996 issue of Super Ford written by Tom Wilson.

    Performer 5.0/5.8L with 1.90" intake valves
    Chamber Size Bare (single) Complete (single)
    60cc #60369 #60379
    Performer 5.0/5.8L with 1.90" intake valves machined for Fel-ProŽ Loc Wire™ gasket
    60cc N/A #60289
    Performer 5.0/5.8L with 2.02" intake valves
    60cc #60389 #60399
    Performer 5.0/5.8L with 2.02" intake valves
    60cc N/A #60299

    Important Notes:
    Use Head Bolt Kits for an easy installation.

     

     

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