Edelbrock torker ii 5021 User Manual
©2005 Edelbrock Corporation
Brochure #63-0426
Catalog #5021
Rev. 7/05 - RS/mc
Rev. 7/05 - RS/mc
Page 2 of 2
Edelbrock Corporation • 2700 California St. • Torrance, CA 90503
Tech Line: 800-416-8628 • E-Mail: Edelbrock@Edelbrock.com
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PREP AND TUNING FOR POWER:
1. Generally speaking, the stock jetting for a Performer or Thunder Series carburetor will not need changing. Specific applications
1. Generally speaking, the stock jetting for a Performer or Thunder Series carburetor will not need changing. Specific applications
may show an increase in power by tuning the fuel mixture.
2. Aftermarket distributor curve kits may be used with Torker II intake manifolds. A basic ignition curve of 12° to 14° initial, and a
total of 36° to 38° advance is a good starting point.
3. Use modified or high performance cylinder heads such as our Performer or Performer RPM. Port matching is not required.
4. The compression ratio should be at least 9.5 to 1 to work properly with Torker-Plus camshafts.
5. Installation of aftermarket headers, camshafts, or both with an Edelbrock Torker II series intake manifold may lean carburetor
4. The compression ratio should be at least 9.5 to 1 to work properly with Torker-Plus camshafts.
5. Installation of aftermarket headers, camshafts, or both with an Edelbrock Torker II series intake manifold may lean carburetor
calibration. Should this condition occur, recalibrate as shown in your carburetor’s owners manual.
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CAMSHAFT AND HEADERS: Torker II intake manifolds are compatible with aftermarket camshafts and headers. Header primary tube
diameter should be 1-5/8”. Edelbrock has developed a camshaft for use with this intake manifold - Torker-Plus #5022. Please check
the catalog or website for rpm and application guidelines.
diameter should be 1-5/8”. Edelbrock has developed a camshaft for use with this intake manifold - Torker-Plus #5022. Please check
the catalog or website for rpm and application guidelines.
INSTALLATION INSTRUCTIONS
1. Use only recommended intake gaskets set when installing this intake manifold.
2. Fully clean the cylinder head intake flanges and the engine block end seal surfaces.
3. Apply Edelbrock Gasgacinch sealant P/N 9300 to both cylinder head flanges and to
2. Fully clean the cylinder head intake flanges and the engine block end seal surfaces.
3. Apply Edelbrock Gasgacinch sealant P/N 9300 to both cylinder head flanges and to
the cylinder head side of the gaskets, allow to air dry, and attach the intake gaskets.
4. Do not use cork or rubber end seals. Use RTV silicone sealer instead. Apply a ¼"
high bead across each block end seal surface, overlapping the intake gasket at the
four corners. This method will eliminate end seal slippage.
four corners. This method will eliminate end seal slippage.
5. Install the intake manifold and hold-down bolts. On early model heads, there is no
support underneath manifold bolts 5, 6, 7 and 8. Hand tighten these ONLY, using a
6” box end wrench being careful not to damage the manifold. Torque the remaining
manifold bolts in two steps by the sequence shown in Figure 2 to 18-20 ft/lbs.
6” box end wrench being careful not to damage the manifold. Torque the remaining
manifold bolts in two steps by the sequence shown in Figure 2 to 18-20 ft/lbs.
6. See Figure 3 for Firing Order and Cylinder Numbering.
SPECIAL NOTICE: For any applications of this manifold requiring a firing order
other than 1-5-4-2-6-3-7-8, change to appropriate firing order. For example, if the
351-W firing order is required, change to 1-3-7-2-6-5-4-8.
351-W firing order is required, change to 1-3-7-2-6-5-4-8.
Figure 3 - Ford 289-302 c.i.d. V8
Firing Order: 1-5-4-2-6-3-7-8
Turn Distributor Clockwise to Advance Timing
Figure 2 - Intake Manifold Tightening Sequence
Tighten Bolts 5, 6, 7, & 8 HAND TIGHT ONLY on Early Models
Torque Remaining Bolts to 18-20 Ft./Lbs.
Figure 1 - Bracket Assembly
Stock Bracket
Edelbrock Bracket
Intake Manifold