Billet Specialties 10421 Compressor Bracket User Manual
Billet Specialties For the car
For use with:
• Chevy small block
• Short water pump
• Sanden 508 AC compressor
1. Use Loctite® removable threadlocker 242 (blue) on all fasteners.
2. Bolt compressor bracket [A] to passenger side head using bolt [C]
3/8-16 x 1-1/4” SHCS and bolt [D] 3/8-16 x 2” SHCS. Tighten.
3. Reinstall bracket [A] and shim between bracket [A] and head at
bolt location [C] 3/8-16 x 1-1/4” SHCS to compensate for casting
variances. Tighten bolt [C] and [D].
4. Bolt compressor adjustment arm [B] to bracket [A] using bolt [E] 3/8-
16 x 1-1/4” SHCS and load washer. Do not tighten.
5. Bolt Sanden 508 compressor to bracket [A] and [B] using bolt [F] 3/8-
16 x 1-3/4” SHCS and [G] 3/8-16 x 1-1/4” SHCS, do not tighten. Bolt
compressor to bracket [B] using bolt [H] 3/8-16 x 1” SHCS, tighten.
6. Install compressor belt on front groove when using 2-groove pulleys.
7. Apply tension on compressor belt and tighten bolts [E] 3/8-16 x 1-1/4”
SHCS, [F] 3/8-16 x 1-3/4” SHCS, and [G] 3/8-16 x 1-1/4” SHCS.
Optional: For early heads (Pre 1987) with only 1 drilled and tapped
hole on passenger side head. Bolt bracket A to head using bolt
[D] 3/8-16 x 2” SHCS while aligning top of bracket parallel to valve
cover gasket surface. Spot drill head at bolt position [C] using
a 25/64” drill bit to provide adequate start for tap drill. Remove
bracket [A] and drill head using a 5/16” drill bit to a depth of ¾”.
Tap head with a 3/8-16 tap to provide at least 5/8” of thread.
#10421 Compressor Bracket Mount Instructions
Side Mount - Passenger Side
BILL OF MATERIALS
ITEM QTY.
DESCRIPTION
SIZE
A
Copressor Main Bracket
B
Compressor Adjustment Arm
C
3/8”-16 Socket Head Cap Screw
1-1/4”
D
3/8”-16 Socket Head Cap Screw
2”
E
3/8”-16 Socket Head Cap Screw
with 3/4” Load Washer
1-1/4”
F
3/8”-16 Socket Head Cap Screw
with Stainless Flat Washer
1-3/4”
G
3/8”-16 Socket Head Cap Screw
with Stainless Flat Washer
1-1/4”
H
3/8”-16 Socket Head Cap Screw
with Stainless Flat Washer
1”
Billet Specialties • 500 Shawmut Avenue • La Grange, Illinois 60526• Tech 708-588-0505 • Fax 708-588-7181
SANDEN 508
AC COMPRESSOR
H
B
F
G
E
D
A
C
Backside of compressor