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This system comes with 2 exhaust crush rings. On 4.8L & 5.3L
V8s, one will be used on the left side collector. 6.0L vehicles will
use one on the left side and one on the right side to replace
factory-installed crush rings.
1. On 4.8L & 5.3L V8s - Remove the donut gasket from
right side exhaust manifold. Using a pair of pliers,
remove the retaining ring from the donut gasket and
place the donut gasket in flare of factory exhaust pipe.
2. Using supplied hardware, re-attach the factory exhaust
pipes to the headers and tighten bolts evenly to ensure
a tight seal. (Note: The 7/16 x 2 bolts are to be used
on the right side of 4.8L & 5.3L V8s and the 7/16 x 1 ¾
Qty.
Part #
Description
1
25-9174
Manifold left side
1
25-9156
Manifold right side
4
-
Hex header bolts; 8mm x 1.25 x 30mm
8
-
Hex header bolts; 8mm x 1.25 x 25mm
2
-
Port gaskets
3
-
7/16" x 2 Hex bolts
6
-
7/16" x 1-3/4 Hex bolts
Qty.
Part #
Description
1
25-9225
Manifold left side
1
25-9226
Manifold right side
4
-
Hex header bolts; 8mm x 1.25 x 30mm
8
-
Hex header bolts; 8mm x 1.25 x 25mm
2
-
Port gaskets
3
-
7/16" x 2 Hex bolts
6
-
7/16" x 1-3/4 Hex bolts
Qty.
Part #
Description
1
25-9247
Manifold left side
1
25-9248
Manifold right side
4
-
Hex header bolts; 8mm x 1.25 x 30mm
8
-
Hex header bolts; 8mm x 1.25 x 25mm
2
-
Port gaskets
3
-
7/16" x 2 Hex bolts
6
-
7/16" x 1-3/4 Hex bolts
©2003 Edelbrock Corporation
Catalog 6500, 65000, & 65002
Part #6500 (Chrome)
Part #65000 (Painted-Black)
Part #65002 (Ceramic-Coated)
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
are for the left side of 4.8L & 5.3L V8s, or both sides on
6.0L V8).
FINAL INSPECTION
1. Check all lines (hydraulic, vacuum, air conditioning and
fuel) to ensure there is adequate clearance to headers.
2. Re-connect battery.
3. At this point, it is a good idea to look everything over and
make sure that nothing was missed in assembly.
4. Start vehicle and bring up to normal operating
temperature. Check for possible leaks.
5. Turn engine off and let cool. Tighten all bolts again.
PARTS LIST
Qty.
Part #
2
-
6
-
6
-
6
-
1
-
14
-
4
-
Qty.
Part #
2
-
6
-
6
-
6
-
1
-
14
-
4
-
Qty.
Part #
2
-
6
-
6
-
6
-
1
-
14
-
4
-
Page 2 of 2
Description
Exhaust crush rings
7/16" Lock washers
7/16" Hex nuts
7/16" Flat washers
EGR gasket
5/16" Lock washers (Header flange)
Hardened washers (for header flange)
slotted holes
Description
Exhaust crush rings
7/16" Lock washers
7/16" Hex nuts
7/16" Flat washers
EGR gasket
5/16" Lock washers (Header flange)
Hardened washers (for header flange)
slotted holes
Description
Exhaust crush rings
7/16" Lock washers
7/16" Hex nuts
7/16" Flat washers
EGR gasket
5/16" Lock washers (Header flange)
Hardened washers (for header flange)
slotted holes
Rev. 10/03
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