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9. Re-install spark plug wires.
10. Re-fasten dip stick tube using spacer and bolt
supplied in kit (if needed).
11. Re-install air intake assembly.
12. With wire ties, route any hoses, wires or lines away
from headers as necessary.
Left Side
1. Disconnect spark plug wires from spark plugs.
2. Disconnect A.I.R. injection hose from exhaust
manifold check valve.
3. Disconnect E.G.R. tube from rear of manifold.
(Stock E.G.R. adapter fitting will be re-used.)
4. Disconnect temperature sensor wire.
5. Unbolt and remove manifold from top side.
6. Install flange gasket and one 3/8"-16 x 1" bolt, lock
washer, and flat washer at rearmost bolt hole (leave
bolt loose enough to accept Header).
NOTE: Thick washers are to be used on slotted
holes of port flange.
7. Install left side Header from top side.
8. Install all bolts and washers on left side (do not
tighten at this time).
9. Re-install E.G.R. tube to header using stock
adapter.
10. Align all parts and tighten left side flange bolts at
this time.
Qty.
Description
❑ 1
#25-9253 Header left side (#65252) Ceramic
❑ 1
#25-9254 Header right side (65252) Ceramic
❑ 1
#25-9233 Header left side (#65253) Ti-Tech
❑ 1
#25-9234 Header right side (#65253) Ti-Tech
❑ 12 Hex header bolts
❑ 2
Port gaskets
❑ 2
Donut gaskets
©2006 Edelbrock Corporation
Rev. 5/06 - DA/mc
HARDWARE SUPPLIED
Catalog #65252, #65253
Edelbrock Corporation, 2700 California St., Torrance, CA 90503
Tech Line: (800) 416-8628
Office: (310) 781-2222
E-Mail: Edelbrock@Edelbrock.com
11. Remove A.I.R. check valve from manifold and install
on A.I.R. fitting of header.
12. Connect A.I.R. injection hose to check valve.
13. Re-install spark plugs wires.
14. Re-install temperature sensor wire to temperature
sensor.
ASSEMBLY OF EXHAUST PIPE
1. Using supplied hardware and new donut gaskets
on both sides, re-attach the factory extension pipes
to the headers, and tighten bolts evenly to ensure a
tight seal.
2. Re-connect O2 sensors. Route O2 sensor wire
from loom to O2 sensors away from exhaust
components.
FINAL INSPECTION
1. Check all lines (hydraulic, vacuum, air conditioning
and fuel) to ensure there is adequate clearance to
headers. Use wire ties as needed.
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.
Qty. Description
❑ 6
3/8" Flat washers
❑ 1
1/4 Hex capscrew
❑ 6
3/8" Hex capscrews
❑ 18 3/8" Lock washers
❑ 4
Hardened washers (for header flange slotted holes)
❑ 6
3/8" Hex nuts
❑ 1
3/8" O.D. spacer
❑ 3
Wire ties
Page 2 of 2
Catalog #65252, #65253
Brochure #63-65252
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