Edelbrock 77139 Victor Jr Cylinder Head, Chevy LT1 /LT4, Complete

#32577139

Edelbrock 77139 Victor Jr Cylinder Head, Chevy LT1 /LT4, Complete

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.

$2,376.95

/each

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Product Summary

Assembled Cylinder Head Style, Aluminum, Natural

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 45deg seat angle, while the exhaust valve has a diameter of 1.60" and utilizes a 50deg seat angle.

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Key Specs

Cylinder Head Style	Assembled
Material Type	Aluminum
Finish	Natural
Combustion Chamber Volume	58cc
Intake Runner Volume	320cc

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Edelbrock 77139 Details

The Edelbrock part #77139 Victor Jr. LT1 (Gen V) cylinder head is 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 45deg seat angle, while the exhaust valve has a diameter of 1.60" and utilizes a 50deg 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 the other cylinder head, this has 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.

Guides & Documents

Cylinder Heads Installation Instructions (32577139)

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

WARNING:

Cancer and Reproductive Harm – www.P65Warnings.ca.gov

CARB warning

Edelbrock 77139 Specifications

KEY SPECS
MFG. Part #	77139
Brand	Edelbrock
Cylinder Head Style	Assembled
Material Type	Aluminum
Finish	Natural
Combustion Chamber Volume	58cc
Intake Runner Volume	320cc

GENERAL
Exhaust Runner Volume	110cc
CNC-Machined Runners	Yes
CNC-Machined Combustion Chamber	Yes
Spark Plug Style	Angle
Intake Port Shape	Rectangle
Intake Port Location	Standard
Exhaust Port Shape	Round
Exhaust Port Location	Spread
Intake Valve Diameter	2.2"
Intake Valves Included	Yes
Exhaust Valve Diameter	1.6"
Exhaust Valves Included	Yes
Valve Spring Included	Yes
Spring Diameter	1.32"
Damper Spring Included	No
Number of Springs Per Valve	Single
Maximum Lift	0.75"
Machined for O-Ring	No
Valve Seats Machined	Yes
Valve Seat Material	Ductile Iron
Valve Stem Seals Included	Yes
Valve Guides Included	Yes
Valve Guide Material	Bronze
Locks Included	Yes
Lock Style	7 Degree
Retainers Included	Yes
Retainer Material	Titanium
Rocker Arms Included	No
Rocker Arm Studs Included	No
Rocker Arm Nuts Included	No
Oiling Style	Through Pushrod
Heat Crossover	No
Steam Holes Drilled	No
Valve Cover Mounting Style	Perimeter Bolt
Notes	Conventional factory rocker arms are retained, exhaust bolt pattern shifted 1.500 forward on driver’s side and 1.500 back on passenger side. Factory intake mounting.
Sold in Quantity	Each
GTIN Code	085347771394

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Fitment

2014 Chevy Corvette

6.2 Chevy LT V8

2015-2018 Chevy Corvette

Chevy LT V8 Gen V 6.2 LT1
Chevy LT V8 Gen V 6.2 LT4