E-TEC 170 AND E-TEC 200 ALUMINUM CYLINDER HEADS
For Small Block Chevrolet Using Vortec Style Manifolds
Part #60959, #60969 (Bare)
®
Part #60979, #60989 (Complete)
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: Edelbrock E-Tec 170 cylinder heads are designed for street/high performance use on 302, 327, 350, and 400 c.i.d. Small block
Chevrolet engines using Vortec style manifolds. E-Tec 200 cylinder heads are high-end street and racing cylinder heads intended for large
displacement small block Chevrolet engines. Both of these heads feature 64cc combustion chambers. Complete cylinder heads come assembled with
valvetrain parts capable of operating up to 6500 rpm. Higher rpm applications will require the use of suitable valvetrain parts, such as larger
valve springs and retainers. Other outstanding features include phosphor-bronze valve guides, ductile iron valve seats and premium one-piece,
stainless steel, high-flow valves, heat-treated machined steel retainers and valve locks, rocker studs, 5/16” guide plates, and heavy duty valve springs
which work with cams having valve lifts up to .600”. Spring load at .600” lift is 340 lbs. Check camshaft manufacturer’s spring load specifications
when using other than Edelbrock camshafts. These powerful heads use the stock Vortec location for intake and exhaust flanges and bolt holes,
and centerbolt valve cover rails for compatibility with original equipment and aftermarket parts. Bolt holes for exhaust and intake flanges and rocker
studs are fitted with helicoil inserts for increased strength.
APPLICATIONS:
60959 (bare) / 60979 (complete) - 302, 327, 350, and 400 c.i.d. Small block Chevrolet engines using Vortec style manifolds. They also
replace original equipment on 1996 through 1998 Vortec 5.7L equipped vehicles (C.A.R.B. E.O.
pending. Call Edelbrock for detailed information). E-Tec 170 feature high velocity 170cc intake
ports and 70cc exhaust ports. Complete heads feature installed 1.940” intake and 1.550” exhaust
valves.
60696 (bare) / 60989 (complete) - Intended for large displacement small block Chevrolet engines. E-Tec 200 cylinder heads feature
200cc intake and 78cc exhaust ports. Complete cylinder heads include 2.020” intake and 1.600”
exhaust valves.
Complete cylinder heads are assembled with the following components:
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Stainless steel, one-piece, swirl-polished intake and exhaust valves with under-cut stems for increased flow
2-ring positive oil control seals on 6097; High quality vitton lip seals with metal jacket on 6098
Edelbrock Sure-Seat valve springs #5767
Retainers #9724
Valve keepers #9616 for PN 6098, #9611 for PN 6097
Valve spring seats #5769
5/16” pushrod guide plates, or hardened washers* for use with self-aligning rocker arms.
*When using self-aligning rocker arms, remove guide plates and install the supplied hardened washers underneath the rocker studs.
NOTE: Complete cylinder heads are assembled and prepared for installation right out of the box. Bare cylinder heads will have valve
guides and seats installed, but will require final guide sizing and a valve job to match the valves you will be using.
Part #60959, 60969, 60979, 60989
Rev. 1/09 - AJ/mc
©2009 Edelbrock Corporation
Brochure #63-0155
Page 1 of 4
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Intake Manifold: Although stock Vortec intake manifold will fit,
Edelbrock E-Tec 170 Cylinder Heads are matched in size and
operating range with Edelbrock Performer, Performer RPM, and
Performer RPM Air-Gap Intake Manifolds. Part numbers 2116, 7116
and 7516. 7116, 7516, 2912 and 2913 are recommended for E-Tec
200. Do not use cork or rubber end seals supplied with gaskets. Set
the manifold on the engine with gaskets installed and measure the
gap between the block and the manifold end seal surface. Remove
the manifold and apply enough automotive O2 sensor-safe RTV
silicone sealer to fill the gap along front and rear of block,
overlapping gaskets at the four corners. Follow gasket
manufacturer’s recommendation for the use or non-use of sealant
for the type of intake gasket used. Install manifold and apply Loctite
242 thread locker or equivalent to the intake manifold bolt threads
and torque down to 11 ft./lbs. using the factory specs for torque
sequence.
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Exhaust Headers: Any header or manifold designed for original
equipment Vortec heads will fit Edelbrock E-Tec 170 Cylinder Heads.
E-Tec 200 will require the use of headers suitable for Fel-Pro #1405
(1-3/4” is minimum recommended). Exhaust ports are CNC-profiled
to match Fel-Pro #1404 exhaust gaskets for 6097 or 1405 for 6098,
which are recommended for these applications.
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 street-driven 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!
INSTALLATION PROCEDURE
Installation is the same as for original equipment cylinder heads. Consult
service manual for specific procedures, if necessary. For 350 c.i.d. and
smaller engines (4.00” bore or less), we recommend Fel-Pro #7733-PT2
head gasket for applications up to 420 HP, #17030 marine gasket for up
to 450 HP and Fel-Pro #1003 beyond that level. Also, GM #10105117 or
Detroit gasket #5565HG. For 400 c.i.d. or larger, Fel-Pro #8364-PT for
moderate horsepower applications, and #1014 for high power
applications. Also, GM #10159455 or Detroit gasket #55431HG. In any
case, for 400 c.i.d. applications, steam holes must be drilled in
cylinder heads as shown in Fig. 2. 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 Teflon pipe sealant or suitable sealer to head bolt
threads. Apply 30W oil or suitable lubricant under side of bolt heads and
washers. Torque to 65 ft./lbs. in three steps (40, 55, 65) following the
factory tightening sequence (see Figure 1). A re-torque is recommended
after initial start-up and cool-down (allow 2-3 hours for adequate
cooling).
Figure 1 - SBC Cylinder Head Bolt Torque Sequence
Torque Bolts to 65 ft./lbs.
(Torque in 3 steps, gradually approaching final torque spec.)
Fig. 2 - Steam Hole Location for 400 c.i.d. engines only
Drill three 0.125” holes in each head using 400 c.i.d. head gasket as a
guide. Drill only the three lower steam holes (closest to the spark
plugs) as indicated in Fig. 2. Drill straight into the head (90º to the
deck) until drilling breaks through into water jacket (about 5/8”).
COOLANT STEAM HOLES ABSOLUTELY MUST NOT OVERLAP INTO
THE HEAD GASKET SEALING RING (FIRE RING) AREA.
SPECIAL INSTRUCTIONS FOR E-TEC ALUMINUM CYLINDER HEADS #60979 & #60989
Complete E-Tec cylinder heads #60979 and #60989 are sold with the pushrod guide plates and rocker studs installed, but they will require checking
for proper valve train and pushrod clearance before operating engine.
PUSHROD GUIDE PLATE ALIGNMENT: The pushrod guide plates are attached to the cylinder heads with two (each) rocker studs. There is enough
clearance around the stud holes to adjust the guide plates for optimum alignment of your valve train components.
1. After the heads have been bolted on your engine and torqued to specs, install your pushrods, rocker arms, and rocker arm adjusting
nuts.
Part #60959, 60969, 60979, 60989
Rev. 1/09 - AJ/mc
©2009 Edelbrock Corporation
Brochure #63-0155
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2. Check pushrod-to-cylinder head clearance. YOU MUST CHECK TO ENSURE THAT THERE IS CLEARANCE BETWEEN THE PUSHRODS
AND THE CYLINDER HEADS (.005” minimum).
3. If adequate clearance exists between the pushrod and head, slowly turn engine through at least two revolutions while watching pushrod.
Make sure that pushrod does not rub on the head either at full lift or when the valve is seated.
4. If pushrod rubs on the cylinder head, remove rocker arms, loosen the rocker studs and move the guide plate as needed to provide
clearance.
5. After checking all pushrods for proper clearance, ensure that the tip of the rocker arm is making adequate contact with the top of the
valve stem.
6. Carefully re-torque to 45 ft./lbs. any rocker studs that were loosened. Check alignment again to be sure that the guide plates did not
move while torquing the studs.
SPECIFICATIONS
Head Bolt Torque:
65 ft-lbs (in steps of 40, 55, 65)
Intake Bolt Torque:
11 ft./lbs.
Rocker Stud Torque:
Deck Thickness:
45 ft./lbs. (See Instructions)
5/8”
Combustion Chamber Volume:
Deck Surface Milling
64cc
Every .005”-.006” Removed is Approximately 1cc Decrease in Chamber Volume
(Maximum Deck Milling = 060”)
Intake Port Volume:
Exhaust Port Volume:
Valve Seats:
170cc (E-Tec 170)/200cc (E-Tec 200)
70cc (E-Tec 170)/78cc (E-Tec 200)
Hardened, Interlocking Ductile Iron. Compatible with Unleaded Fuels
Valve Size:
PN 60979 - Intake 1.940”, Exhaust 1.550”
PN 60989 - Intake 2.020”, Exhaust 1.600”
Valve Locks:
3/8” x 7º (#9612)
7º 4140 Steel (#9734)
1.450”
Valve Spring Retainers:
Valve Spring Diameter:
Valve Spring Installed Height:
Valve Spring Seat Pressure:
Valve Spring Pressure @ .581” Lift:
Maximum Valve Lift:
1.800”
120 lbs.
320 lbs.
.600”
Rocker Arms:
Adjustable, Non-Self Aligning, Roller Rocker Arms Recommended
Self-Aligning Rocker Arms Must Remove Guide Plates and Install Washers Under Rocker Studs
Pushrods:
.100” Longer than Stock Required with Stock Type Stamped Steel Rocker Arms.
Hardened Pushrods Required with Guide Plates
Spark Plugs:
14mm x 3/4” Reach, 5/8” Hex, Gasketed Seat
®
Edelbrock Corporation • 2700 California St. • Torrance, CA 90503
Part #60959, 60969, 60979, 60989
Rev. 1/09 - AJ/mc
©2009 Edelbrock Corporation
Brochure #63-0155
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