Edelbrock 3881 - Manual (Page 2)

Catalog #3881
Rev. 6/06 - RS/mc ©2006 Edelbrock Corporation
Brochure #63-3881 Page 2 of 3
INSTALLATION PROCEDURE
• PREP AND TUNING FOR POWER:
NOTE: Local emission laws must be checked for legality prior to performing any ignition or ECU tuning.
Performer Series Intake Manifolds
1.
The Performer intake manifold does not require any additional tuning in most applications.
2. Performer manifolds deliver excellent drivability and power utilizing stock distributor settings. Some applications may benefit from resetting
the initial advance ±2° from the factory specification.
3. Aftermarket ignitions and more aggressive advance curves may be used with Performer packages.
4. Installation of aftermarket headers or camshafts may require additional tuning and may breach emissions regulations. Check local laws for
details.
• REMOVAL
1. Disconnect battery negative cable and drain cooling system.
2. Disconnect necessary electrical connections, control cables,
linkages, vacuum hoses, ventilation hoses, and coolant hoses at
throttle body and manifold. Do not disconnect fuel lines unless
absolutely necessary. Special tooling and procedures are required
to re-install fuel lines. See
"Fuel Line Removal and Installation".
3. Remove distributor cap and spark plug wires as an assembly. Place
reference mark on distributor for rotor alignment during
reassembly. Remove retaining bolt and distributor.
4. Disconnect throttle linkage and air inlet tubes. Unbolt EGR valve
from manifold and swing away (loosen pipe fitting on exhaust
manifold, if necessary).
5. Remove retaining bolts, upper intake manifold and gasket. Remove
accessory brackets attached to lower manifold. Remove heater
tube assembly from lower manifold. Remove retaining bolts, lower
manifold, gaskets, and seals.
6. Mark vacuum line locations. Vacuum lines will relocate to the stock
positions on the #3881, with the exception of the MAP sensor. Its
fitting will relocate from the top to the bottom of the plenum.
7. To facilitate easy assembly, tag all electrical connectors before
disassembly.
INSTALLATION
CAUTION: Do not use non-embossed high performance or
competition-type intake gaskets for street application. Due to
material deterioration under street driving conditions, internal
leakage of both vacuum and oil may occur. Use only recommended
gaskets when installing this manifold for street applications.
1. Clean all gasket surfaces. Apply a 1/8" bead of O2 sensor safe
silicone sealer at junction of cylinder head and cylinder block
surface BEFORE gaskets are installed.
2. Apply Edelbrock Gasgacinch sealant, #9300, to both sides of the
manifold as well as head surfaces. This procedure ensures a good
seal.
3. Install intake manifold gaskets on heads.
4. Eliminate the end seals. Instead, use RTV silicone sealers designed
for use with O2 sensors. Apply a bead of sealant approximately
1/4” high across the front and rear block end seal surfaces,
overlapping the intake gasket at the four corners. This method
eliminates end seal slippage and deterioration.
5. For ease of installation, we recommend using Edelbrock Manifold
Bolt & Washer Kit, #8584. It may be necessary to re-use the original
stud bolt to hold heater tube bracket in hole #3
(See Figure 1).
6. Install lower intake manifold and retaining bolts. Tighten bolts to
18-20 ft./lbs. in sequence
(See Figure 1).
7. If fuel rail and injectors were disconnected, install components with
new O-rings on fuel lines. Use only specified fuel resistant brown
O-rings. Lightly coat O-rings with clean engine oil before installing.
Clean fittings and replace garter spring if necessary.
8. Install 90° PCV hose fitting in rear of upper manifold before
installing on base. Use Teflon tape or thread sealer and orient the
fitting to the 4:00 o'clock position (viewed from the rear).
9. Install upper manifold and gasket (dry) using hardware supplied
(See Figure 1). Upper manifold must be positioned so that the
throttle body is towards the front of vehicle.
NOTE: Do not overtighten manifold base to manifold upper
fasteners. Use a short box or open end wrench only. Install
plenum cover and gasket (dry) with Allen head screws
provided.
10. Remove original throttle valve studs from stock manifold and install
in new manifold. To re-install remaining components, reverse
removal procedure. Adjust all control cables. If automatic
transmission equipped using an aftermarket throttle body, refer to
your throttle body instructions for transmission T.V. (throttle valve)
cable linkage adjustment.
Fill cooling system with coolant.
Connect battery negative cable.
11. A re-torque of the manifold bolts is recommended after several
operation cycles (start-up, bring to operating temperature, cool-
down). Re-torque when engine is cold.