Owners manual

Page 2 of 2
©2012 Edelbrock LLC
Rev. 9/18/12 - QT/mc
Part #5090, 5093
Brochure #63-5093
Intake Manifold: Although stock intake manifolds will fit, Edelbrock
E-Street Chrysler Cylinder Heads are matched in size and operating
range with Edelbrock Performer Intake Manifolds #2186 for B engines
and #2191 for RB engines. Edelbrock #7225 intake gaskets (if used
with stock style valley pan - “B” or “RB” engines), Fel-Pro intake
manifold gaskets #1214 for “B” and #1215 for “RB” engines, and Mopar
performance #P4286825 for “B” and #P4286826 for “RB” engines
are recommended. Follow the manifold or gasket manufacturer’s
recommendations for installation.
Exhaust Headers: Some headers or exhaust manifolds designed for
original equipment heads will have reduced spark plug boot clearance.
Check and make sure there is enough header/manifold-to-spark plug
clearance BEFORE INSTALLING CYLINDER HEAD ON ENGINE. Exhaust
ports are CNC-profiled to match Fel-Pro #1414 exhaust gaskets which
are recommended for this application.
Spark Plugs: Use 14mm x 3/4” reach gasketed spark plugs. Heat
range may vary by application, but we recommend Champion RC-12YC
(or equivalent) for most applications. 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.
INSTALLATION: Installation is the same as for original equipment
cylinder heads. Consult service manual for specific procedures, if
necessary. Be sure that the surface of the block and the surface of the
head are thoroughly cleaned to remove any oily film before installation.
Use alcohol or lacquer thinner on a lint-free rag to clean. Apply oil or
suitable thread lubricant to head bolt threads and the underside of bolt
heads and washers. Torque to 70 ft./lbs. in three steps (40, 55, 70)
following the factory tightening sequence (see Figure 1). Apply a
continuous 1/8” bead of automotive RTV silicone sealer to end sealing
surfaces on block and along bottom of intake ports on cylinder head.
Also, apply a thin bead of sealer around intake ports on cylinder head
and gasket. Position intake gasket thin valley cover in place and tighten
bolts down. Then, place intake manifold in position and torque manifold
bolts to 25 ft. lbs.
Notes: 1) Rocker shaft hold-down studs, nuts and washers for 2 places
marked (S) in each head are supplied in this kit. 2) Double nut both
studs and screw them in until they reach the bottom. Install rocker shaft,
factory concave washer and hard washer supplied with this kit. Apply
30W oil to fine threads and under nuts and washers and torque nuts to
25 ft./lbs. A head bolt re-torque is recommended after initial start-up
and cool-down (allow 2-3 hours for adequate cooling).
SPECIFICATIONS:
Head Bolt Torque: 70 ft./lbs.
(in steps of 40, 55, 70)
Rocker Shaft Bolt Torque: 25 ft./lbs.
Combustion Chamber Volume: #5090 - 75cc
#5093 - 84cc
Deck Thickness: 5/8”
Valve Seats: Interlocking, compatible with any
fuel
Valve Size: Intake- 2.140”,
Exhaust - 1.810”
Valve Spring Diameter: 1.55”
Valve Spring Installed Height: 1.880”
Valve Spring Seat Pressure: 120 lbs.
Max. Valve Lift: .600”
13
9
7
5
1
3
11
17
16
12
8
4 2
6
10
14
15
(S)
(S)
Fig. 1
Diagram Showing Correct Cylinder Head Tightening Sequence
Edelbrock LLC • 2700 California St. • Torrance, CA 90503
Tech Line: [phone] • Office Line: 310-781-2222