Edelbrock Victor 12-Degree CNC LS7 6-Bolt Cylinder Heads 77678

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Part Number: EDL-77678

$1,801.95

Cylinder Head, CNC, Victor 12 Degree, Aluminum, Bare, 69cc Chamber, 291cc Intake Runner, 6-Bolt Flange, Chevy, LS7, Each
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Edelbrock Victor 12-Degree CNC LS7 6-Bolt Cylinder Heads 77678

Edelbrock Victor 12-Degree CNC LS7 6-Bolt Cylinder Heads 77678

EDL-77678

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Part Number: EDL-77678

Estimated Ship Date: Oct 30, 2026

$1,801.95

Estimated Ship Date: Oct 30, 2026 Would you rather pick it up?

Overview

Brand:
Manufacturer's Part Number:
77678
Part Type:
Product Line:
Summit Racing Part Number:
EDL-77678
UPC:
085347776788
Combustion Chamber Volume (cc):
69
Intake Runner Volume (cc):
291cc
Cylinder Head Style:
Bare
Cylinder Head Material:
Cast aluminum
Camshaft Style:
Hydraulic roller
Intake Port Shape:
Rectangular
Intake Valve Diameter (in.):
2.200 in.
CNC-Machined Combustion Chamber:
Yes
CNC-Machined Intake Runner:
Yes
CNC-Machined Exhaust Runner:
Yes
Combustion Chamber Style:
Heart
Intake Port Location:
Raised
Exhaust Port Shape:
Round
Exhaust Port Location:
Raised
Spark Plug Style:
Angle
Intake Valves Included:
No
Exhaust Valves Included:
No
Exhaust Valve Diameter (in.):
1.615 in.
Valve Springs Included:
No
Damper Spring Included:
No
Retainers Included:
No
Locks Included:
No
Valve Stem Seals Included:
No
Rocker Arm Studs Included:
No
Rocker Arms Included:
No
Rocker Arm Nuts Included:
No
Guideplates Included:
No
Accessory Bolt Holes Drilled:
Yes
Intake Valve Angle:
12
Exhaust Valve Angle:
12
Valve Guides Included:
Yes
Valve Guide Material:
Manganese bronze
Valve Seats Machined:
Yes
Valve Seat Machine Style:
3-angle
Valve Seat Material:
Copper infiltrated
Cylinder Head Color:
Natural
Finish:
Natural
Steam Holes Drilled:
No
Oiling Style:
Through pushrod
Machined for O-Ring:
No
Heat Crossover:
No
Remanufactured:
No
Quantity:
Sold individually.
Notes:
Features 0.220 in. raised intake ports and 0.100 in. raised exhaust ports. Can be used with stock or aftermarket valve train and intake manifolds.

Edelbrock Victor 12-Degree CNC LS7 6-Bolt Cylinder Heads

Edelbrock Victor CNC 12-degree 6-bolt LS7 cylinder heads are specifically designed for maximum effort naturally aspirated and boosted applications. They feature .220 in. raised intake runners and .100 in. raised exhaust ports that provide a better line of sight into the cylinders and allow for an improved short turn. The raised intake runner design fits both stock and aftermarket LS7 intake manifolds and can be used with stock or aftermarket valvetrains. The heads utilize the GM LS 6-bolt design, making them compatible with the GM LSX block and all aftermarket iron or aluminum 6-bolt per cylinder LS race blocks. The design offers increased clamping capacity over the standard factory 4-bolt configuration and improves head gasket sealing, making them ideal for high-compression, naturally aspirated engines and high-boost applications.

Edelbrock Victor CNC cylinder heads feature a 12-degree valve angle and fully CNC-machined ports for maximum airflow. CNC-machined runners and chambers, as well as the .220 in. raised intake ports and the valve angle, increase overall flow capability, while a revised water jacket design enhances thermal conductivity and tunability. The manganese bronze valve guides withstand long wear with emphasis placed on holding precision tolerances on valve seat concentricity, allowing the valves to seal securely, eliminating leak down and increasing cylinder pressure during engine operation. Finally, the .700 in. thick deck and .400 in. raised valve cover rail make these heads ideal for maximum horsepower and high valve lift applications.

All Edelbrock Victor CNC heads feature patented Clean Cast Technology, a process that eliminates casting flaws and promotes a smoother internal surface finish for greater air and coolant flow. These benefits provide more power and increased cooling ability.

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WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.

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