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©2003 Edelbrock Corporation
Catalog 6564, 65640, & 65642
Page 2 of 2
Rev. 7/03
Edelbrock Corporation, 2700 California St., Torrance, CA 90503
Tech Line: 1-800-416-8628
Office: 310-781-2222
Tech Fax: 310-972-2730
E-Mail: edelbrock@edelbrock.com
4. Re-attach factory Y-pipe using supplied donut
gaskets and hardware.
5. Using the supplied tie wraps, tie back any wire
packs or soft lines that may come close to exhaust.
Be careful not to kink cable or lines.
6. Re-install 02 sensor into Y-pipe (use anti-seize on
threads).
FINAL INSPECTION
1. Check all hydraulic, vacuum and fuel lines, and
spark plug wires to ensure there is adequate
clearance to exhaust components.
2. Reconnect battery.
3. At this point, it is a good idea to look over the
complete installation to be sure nothing was
missed.
4. Start vehicle and bring up to normal operating
temperature and check for possible leaks, correct
as necessary.
5. Turn engine off and let cool then re-tighten all bolts
again. (Do not do while HOT!).
Note: Periodically check header bolts to ensure a
tight seal for best performance.
Part #6564 (Chrome)
Qty. Part # Description Qty. Part # Description
1 25-9176 Manifold left side 4 - Hex capscrews; 3/8”-16x2”
1 25-9177 Manifold right side 2 - V8 Port gaskets
12 - 6-Point bolts; 5/16”-18x1” 2 - Donut gaskets
12 - Lock washers; 5/16” 4 - 3/8” Flat washers
4 - Lock washers; 3/8” 2 - 11” Tie wraps
8 - Hardened flat washers; 5/16” 4 - 3/8-16 Hex nut
Part #65640 (Painted-Black)
Qty. Part # Description Qty. Part # Description
1 25-9239 Manifold left side 4 - Hex capscrews; 3/8”-16x2”
1 25-9240 Manifold right side 2 - V8 Port gaskets
12 - 6-Point bolts; 5/16”-18x1” 2 - Donut gaskets
12 - Lock washers; 5/16” 4 - 3/8” Flat washers
4 - Lock washers; 3/8” 2 - 11” Tie wraps
8 - Hardened flat washers; 5/16” 4 - 3/8-16 Hex nut
Part #65642 (Ceramic-Coated)
Qty. Part # Description Qty. Part # Description
1 25-9259 Manifold left side 4 - Hex capscrews; 3/8”-16x2”
1 25-9260 Manifold right side 2 - V8 Port gaskets
12 - 6-Point bolts; 5/16”-18x1” 2 - Donut gaskets
12 - Lock washers; 5/16” 4 - 3/8” Flat washers
4 - Lock washers; 3/8” 2 - 11” Tie wraps
8 - Hardened flat washers; 5/16” 4 - 3/8-16 Hex nut
PARTS LIST