Edelbrock 770769 Installation Instructions

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©2008 Edelbrock Corporation
Brochure #63-770769
Catalog #770769
Rev. 1/08 - AJ/mc Page 1 of 3
GLIDDEN VICTOR SC-1 CYLINDER HEADS
For Ford Windsor Engines
Catalog #770769
INSTALLATION INSTRUCTIONS
®
PLEASE study these instructions carefully before beginning this installation. Most installations can be accomplished with common tools and
procedures. However, you should be familiar with and comfortable working on your vehicle. If you do not feel comfortable performing this installation,
it is recommended to have the installation completed by a qualified mechanic. If you have any questions, please call our Technical Hotline at:
1-800-416-8628, 7:00 am - 5:00 pm, Pacific Standard Time, Monday through Friday or e-mail us at [email protected]
.
IMPORTANT NOTE: Proper installation is the responsibility of the installer. Improper installation
will void your warranty and may result in poor performance and engine or vehicle damage.
DESCRIPTION: The Glidden Victor SC-1 cylinder head is designed for all out performance applications on Ford Windsor V8 blocks. It has a raised
intake port with an extended intake flange and a raised exhaust port designed to work with Yates headers. Water outlets are provided on the front and
rear of the head for external plumbing of a water crossover. For maximum head gasket retention, these heads include two auxiliary head bolt holes
per cylinder.
(Note: Provisions for these extra bolts are found only on aftermarket race blocks. Four of these bolt holes are partially drilled and will
need to be finished to be used.)
These heads have small ports and chambers that will require professional porting prior to installation. Valve guides
and seats are included but not installed, and the seat bores are undersized and shallow. Heli-coil thread inserts for valvetrain retention are also
included but not installed. We recommend Edelbrock intakes #2860, #2865 or #2868 for these heads.
NOTE: Prior to standard machining and heat treating procedures, this cylinder head was subjected to a process know as Hot Isostatic Pressing
(HIP). During this process the casting is exposed to heat in excess of 900° F and inert gas pressures of nearly 30,000 psi. This combination of
heat and pressure eliminates any gas pores remaining from when the head was orignially cast. By elevating the material density of the cylinder
head to nearly the level of billet aluminum, significantly increased durability and longevity under extreme conditions is achieved.
BEFORE BEGINNING INSTALLATION
IMPORTANT NOTES: READ BEFORE BEGINNING INSTALLATION!
For a successful installation, Glidden Victor SC-1 Cylinder Heads require
several specialized components. To complete your installation, you will
need the following items:
Head gaskets (using ten head bolts per head only); Fel-Pro
#1134 (4.180” bore), or #1135 (4.210” bore).
Intake manifold gaskets; these are currently in development by
Edelbrock, custom gaskets or other sealing solution will need
to be used until gaskets are available
Exhaust gaskets; Fel-Pro #1433 or equivalent.
Valve cover gaskets; Edelbrock #7569
Head Bolts/Studs; when using the standard 10 bolt per head
pattern, you will need five (5) bolts or studs 5” long, and five (5)
that are 4.5” long.
Valves; the valve guides supplied are sized for 5/16” stems on
the intake, and 11/32” on the exhaust.
Spark Plugs; 14mm x 3/4” reach x 5/8” hex, gasketed seal
(heat range to be determined by specific application)
Shaft mounted rocker assembly; Jesel and T&D have produced
application specific rockers for this head
Pistons; custom pistons are preferred for use with this head
due to its unique chamber and valve angle configuration.
Pistons designed for a Yates head should also work with
minimal modifcations
CHECKING ENGINE CLEARANCES: As with any competition engine
build, it is highly recommended that valve-to-piston clearances are
checked prior to installation and corrected to minimum specs, if
necessary. Minimum intake valve clearance should be .080”.
Minimum exhaust valve clearance should be .110”. The point of
minimum intake valve to piston clearance will usually occur
somewhere between 5° and 20° After Top Dead Center during valve
overlap. The point of minimum exhaust valve to piston clearance will
usually occur 20° to 5° Before Top Dead Center during valve overlap.
Some pistons may require notching depending upon the valves
selected for your application. Also make sure that there is adequate
clearance between the valves and the cylinder wall, as well as the
rocker arms to the valve cover and the rocker arm to the valve cover
rail (intake only).
REQUIRED MACHINE WORK: The intake and exhaust ports as
supplied are deliberately undersized to allow sizing and shaping to the
preference of the head porter. The valve seat provisions are also
undersized (2.180” intake and 1.600” exhaust from the factory) and
can be machined out to a maximum of 2.300” on the intake and 1.75”
on the exhaust. The valve seats can be sunk into the head by up to
.250” in order to increase chamber volume. The valve guide bores
have already been finished to .500” and the supplied guides simply
need to be installed.
COOLING REQUIREMENTS: Numerous water holes are cast and/or
drilled in this head. Three (3) 8-32 x 1/4” long set screws should be
installed with red Locktite in each tapped hole between the water core
and head bolt. Two (2) 5/16”-18 x 1/2” long set screws will plug the
appropriate holes on either end of the head. Use red Locktite on those
screws as well. A 3/4” and 1” NPT threaded hole is provided on each
end of the head to allow a variety of cooling solutions. Any hole that is
not plumbed, must be plugged.