For use with:
• Chevy small block
• Short water pump
• Sanden 508 AC compressor
1. Use Loctite® removable threadlocker 242 (blue) on all fasteners.
2. Mounting for late model heads with 3 tapped holes in passenger side
head. Bolt compressor bracket [A] to passenger side head using bolt
[D] 3/8-16 x 3-1/4” SHCS, [E] 3/8-16 x 1-1/4” SHCS, and [G] 3/8-16 x 2-
1/4” SHCS. Hole location [G] in bracket [A] will need to be drilled out
with a 25/64” drill bit for this application. No need to use connector
bracket [C] for this conguration. Tighten.
Optional mounting on early heads may be required. If not, skip to
step 5.
3. Optional mounting for early heads (Pre 1987) with only 1 drilled &
tapped hole on passenger side head. Bolt bracket [A] to head using
bolt [E] 3/8-16 x 1-1/4” SHCS. Bolt connector bracket [C] to bracket
[A] using bolt [F] 3/8-16 x 1-1/4” SHCS and to water pump using bolt
[H] 3/8-16 x 2-1/4” SHCS. Shims may be needed at water pump to
compensate for casting variances. Spot drill head at bolt position [D]
using 25/64” drill bit to provide adequate start for tap drill. Remove
bracket [A] and [C] and drill head using a 5/16” drill bit to a depth of
1”. Hand tap head with a 3/8-16 tap to provide at least ¾” of thread.
4. Reinstall bracket [A] and [C] and shim between bracket [A] and
head at bolt location [D] 3/8-16 x 3-1/4” SHCS to compensate for
casting variances. Bolt bracket [C] to water pump using bolt [H]
3/8-16 x 2-1/4” SHCS. Shims may be needed at water pump to
compensate for casting variances. Tighten bolts [D], [E], [F], and [H].
5. Bolt compressor adjustment arm [B] to inside of the front ear of the
Sanden 508 compressor using bolt [L] 3/8-16 x 1” SHCS. Tighten.
6. Bolt Sanden 508 compressor with bracket [B] to bracket [A] using bolt
[I] 3/8-16 x 1-1/4” SHCS, [J] 3/8-16 x 11-3/4” SHCS, and [K] 3/8-16 x 1-
1/4” SHCS. Do not tighten.
7. Install compressor belt on front groove when using 2-groove pulleys.
8. Apply tension on compressor belt and tight bolts [I] 3/8-16 x 1-1/4”
SHCS, [J] 3/8-16 x 1-3/4” SHCS, and [K] 3/8-16 x 1-1/4” SHCS.
#10221 Compressor Bracket Mount Instructions
Top Mount - Passenger Side
BILL OF MATERIALS
ITEM QTY. DESCRIPTION SIZE
A 1 Compressor Main Bracket
B 1 Compressor Adjustment Arm
C 1
Water Pump To Main Bracket
Connector Bracket
D 1 3/8”-16 Socket Head Cap Screw 3-1/4”
E 1 3/8”-16 Socket Head Cap Screw 1-1/4”
F 1 3/8”-16 Socket Head Cap Screw 1-1/4”
G 1 3/8”-16 Socket Head Cap Screw 3-1/4”
H 1 3/8”-16 Socket Head Cap Screw 2-1/4”
I 1 3/8”-16 Socket Head Cap Screw 1-1/4”
J 1 3/8”-16 Socket Head Cap Screw 1-3/4”
K 1 3/8”-16 Socket Head Cap Screw 1-1/4”
L 1 3/8”-16 Socket Head Cap Screw 1”
W 1 Stainless Load Washer 3/4” x 3/16”
X 6 Stainless Flat Washer 3/4” x .060”
** 2 Stainless Flat Washer (Shims) 3/4” x .032”
** 2 Stainless Flat Washer (Shims) 3/4” x .010”
Billet Specialties • 500 Shawmut Avenue • La Grange, Illinois 60526• Tech 708-588-0505 • Fax 708-588-7181
K
X
A
E
TO WATER PUMP
C
X
H
X
F *G
D
W
I
J
X
B
X
L
* Denotes optional mounting sequence.
See instructions for details.
(9 pages)
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