©2014 Edelbrock LLC
Brochure #63-61169
Catalog #61169, 61175, 61179, 61189
Rev. 11/13/14 - QT
Page 1 of 2
VICTOR Jr. CNC CYLINDER HEADS
For Chrysler 426-572 HEMI
Catalog #61169, 61175, 61179, 61189
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.
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:
These Victor Jr. cylinder heads are designed for high
output 650+ hp Chrysler 426-572 engines. They feature fully CNC’d
combustion chambers and CNC blended seats for optimal air flow
performance. These cylinder heads also feature a revised exhaust
valve angle to accommodate larger intake valves. They also feature
brass tubes installed in exhaust pushrod holes to allow maximum
clearance with minimal port intrusion.
NOTE:
Complete cylinder heads, #61175 and #61179, are
assembled and prepared for installation right out of the box. Bare
cylinder heads w/ valves, #61189, are shipped with reamed and
machined valve stem guides, as well as a valve job to match the
included intake and exhaust valves. Customer must supply their
own valve springs, retainers, valve stem seals and valve locks.
Bare heads, 61169, are shipped with reamed and semi-finished
valve stem guides and seats. Bare heads will require final sizing
and a valve job to match the specific valves being used.
IMPORTANT NOTES: READ BEFORE BEGINNING INSTALLATION!
For a successful installation, the Edelbrock Victor Jr. Cylinder Heads
require some components other than original equipment parts. To
complete your installation, you will need the following items:
q
Head Gaskets (
Min. Bore 4.375”
): Edelbrock #7347 or Fel-Pro
#1104
q
Intake Manifold Gaskets: Fel-Pro #1234
q
Exhaust Gaskets: Fel-Pro #1462
q
Edelbrock Head Bolt Kit: Edelbrock #8513 or ARP 145-3901
CHECKING PISTON-TO-VALVE, VALVE-TO-BORE AND PISTON-TO-
HEAD CLEARANCES:
Prior to installation, it is highly recommended
that valve-to-piston clearances are checked and corrected to minimum
specs, if necessary. These cylinder heads have larger-than-stock
valve sizes and will not work with the valve pockets in stock pistons,
especially if a high lift cam is used. The use of aftermarket pistons
and/or custom machining to your pistons is required. Actual valve-to-
piston clearance should be specified by your camshaft manufacturer.
Valve-to-bore clearance should also be checked, and the top of the
bore notched for clearance, if necessary (
Min Clearance 0.030”
).
ACCESSORIES:
Although Edelbrock Cylinder Heads will accept
OEM components (valve covers, intake manifold, etc.), we highly
recommend that premium quality hardware be used with your new
heads. Continue to next column for hardware recommendations.
Head Bolts or Studs:
High quality head studs or head bolts with
hardened washers must be used to prevent galling of the aluminum
bolt bosses. Edelbrock head bolt kit, #8513, includes all bolts which
must be used with these cylinder heads.
Rocker Arms and Valve Train:
These heads are designed to use
stock offset rocker arm and valve train components.
CAUTION:
Before installing rocker shafts, check for burrs or
other obstructions on the machined saddles where the shaft sits.
Remove any burrs and clean saddles thoroughly, if necessary.
Valve Covers:
Edelbrock Victor Jr. CNC Chrysler cylinder heads
will accept factory style, Gen 2, HEMI valve covers and valve cover
gaskets.
Intake Manifold:
Although the stock intake manifolds will fit,
the Victor Jr. heads should be matched with an appropriate high
performance manifold. Follow the manifold or gasket manufacturer’s
recommendations for installation.
Exhaust Headers:
Although the stock exhaust manifolds/headers
will fit these Victor Jr. cylinder heads, it is highly recommended
to match these heads with appropriate high performance exhaust
headers. Follow the header manufacturer’s recommendations for
installation procedures.
Spark Plugs:
Use 14mm x 3/4” reach gasketed spark plugs. Heat
range will vary by application.
NOTE:
Use anti-seize on the plug threads to prevent galling in
the cylinder head, and torque to 10 ft./lbs. Do not overtighten
sparkplugs! If short reach plug is used, poor performance and
possible engine damage may occur.
Spark Plug Tube O-rings
Edelbrock has included lower spark plug
tube O-rings with PN 61175 & 61179 cylinder heads. The purpose
of these O-rings is to help seal the spark plug tube from leaking oil
into the cylinder when checking or changing spark plugs. It is still
expected that a small amount of oil can enter the chamber even with
the lower O-ring installed, but the volume will be greatly reduced.
These O-rings get installed into the head in the machined groove down
by the spark plug threads. The O-rings must be lightly oiled prior to
test fitting the spark plug tube with the valve cover off of the head.
The tube should push into the lower O-ring with light force. If a lot of
force is required to push/twist the tube through the lower O-ring there
