$$2,027.95Engine \ Cylinder Heads \ Chevy Small Block Aluminum Heads77139
EDL77139
Edelbrock 77139 LT1 Chevy Victor Jr. Cylinder Heads 320cc, 57cc Chambers, Assembed, Each
The Edelbrock part # 77139 Victor Jr. LT1 (Gen V) cylinder heads are an excellent upgrade for ultra high-performance on GM Gen V LT1 racing engines. The biggest change and advantage of Victor Jr. is the revised exhaust ports, which have been moved 1.5' horizontally to improve air flow. This revision will require the use of custom exhaust ...
Edelbrock77139 LT1 Chevy E-STREET Victor Jr. Cylinder Heads

Edelbrock

Edelbrock 77139 LT1 Chevy Victor Jr. Cylinder Heads 320cc, 57cc Chambers, Assembed, Each

Item #: EDL77139

Mfg Part #: 77139

UPC #: 085347771394

Applies To Continental U.S. orders only

Specifications
Cylinder Head Specifications
Cylinder Head Style
Assembled
Cylinder Head Material
Aluminum
Intake Port Shape
Rectangular
Intake Valve Diameter (in)
2.200 in.
Cylinder Head Finish
Natural
Combustion Chamber Volume (cc)
57cc
CNC-Machined Combustion Chamber
Yes
Intake Runner Volume (cc)
320cc
Exhaust Runner Volume (cc)
110cc
CNC-Machined Intake Runner
Yes
CNC-Machined Exhaust Runner
Yes
Intake Port Location
Standard
Exhaust Port Shape
Round
Exhaust Port Location
Spread
Spark Plug Style
Angled
Intake Valves Included
Yes
Exhaust Valves Included
Yes
Exhaust Valve Diameter (in)
1.600 in.
Valve Springs Included
Yes
Maximum Valve Lift (in)
0.750 in.
Outside Diameter of Outer Spring (in)
1.320 in.
Damper Spring Included
No
Number of Springs Per Valve
Single
Retainers Included
Yes
Retainer Material
Titanium
Locks Included
Yes
Lock Style
7 degree
Valve Stem Seals Included
Yes
Valve Stem Seal Style
Positive stop
Valve stem diameter (in)
0.313 in.
Rocker Arm Studs Included
No
Rocker Arm Nut Thread Size
N/A
Rocker Arms Included
No
Rocker Arm Nuts Included
No
Guideplates Included
No
Guideplate Pushrod Size
N/A
Guideplates Material
N/A
Deck thickness
0.750
Valve Cover Mounting Style
Perimeter bolt
Accessory Bolt Holes Drilled
Yes
Valve Guides Included
Yes
Valve Guide Material
Bronze
Valve Seats Machined
Yes
Valve Seat Machine Style
N/A
Valve Seat Material
Ductile iron
Steam Holes Drilled
No
Intake Valve Angle
N/A
Oiling Style
Through pushrod
Machined for O-Ring
No
Heat Crossover
No
Spark plug fitment
14mm x 3/4" reach, gasket seat
Quantity
Sold individually.
Notes
Notes Conventional factory rocker arms are retained, exhaust bolt pattern shifted 1.500 in. forward on driver’s side and 1.500 in. back on passenger side. Factory intake mounting.
Applications
Make
Chevrolet
Engine Size
6.2L/376
Engine Family
Chevy small block
General
Brand
Edelbrock
Item #
EDL77139
Mfg Part #
77139
UPC
085347771394
Description

The Edelbrock part # 77139 Victor Jr. LT1 (Gen V) cylinder heads are an excellent upgrade for ultra high-performance on GM Gen V LT1 racing engines. The biggest change and advantage of Victor Jr. is the revised exhaust ports, which have been moved 1.5" horizontally to improve air flow. This revision will require the use of custom exhaust manifolds and headers. They have been designed with high flow intake/exhaust ports and back cut intake valves for improved air flow. The valve position has also been revised to accommodate interlocking valve seat rings and larger valves. The intake valve has been increased to 2.20" diameter and has hollow stem valves with a 45° seat angle, while the exhaust valve has a diameter of 1.60" and utilizes a 50° seat angle. It's designed with a thicker deck and more material in the intake, exhaust and port walls for improved strength, durability and for additional porting and deck milling. This cylinder head features fully CNC machined intake ports, combustion chambers and exhaust ports for improved performance. The Victor Jr. retains the stock rocker arm, intake port and spark plug tip location for use with factory components. Like all of our other cylinder heads, these have been designed, tested and cast from 356 aluminum and heat treated to T-6 specs in our facilities in Southern California to guarantee you get the best from a name you can trust. Looking for custom LT1 headers? Please contact Kooks Exhaust and Headers at (866) 586-5665 for more details about their LT1 headers for the Edelbrock Victor Jr. cylinder head!

Customer Reviews
Share your thoughts with other customers
Login to leave a review
Questions & Answers
Be first to ask a question

TEASoftware