Page 211 - 2017 Racecar Engineering Circle Track Parts and Accessories Catalog

SZ SERIES STEEL SHOCK ABSORBERS SZ SERIES DP
Digressive valve, SZ monotube gas shocks are used on modifieds and late IMCA DIRT MODIFIED
models. Shocks have 2" O.D. plated steel bodies and 1.81" (46mm) pistons for SHOCK ABSORBER
consistent, fade-free performance. Shocks are available in 7" and 9" strokes PACKAGE BILDP1
and may be converted to coil-overs. Specifically designed for IMCA dirt
Extended Compressed Rebound Compression
Part No. Length Length Stroke Damping Damping modifieds, specialized package takes the
BILS7Z-1090 20.00" 13.14" 7" 80 lbs. 600 lbs. guesswork out of ordering the correct
BILS7Z-3030 20.00" 13.14" 7" 160 lbs. 160 lbs. valving shock absorbers. Includes a set of
BILS7Z-3040 20.00" 13.14" 7" 160 lbs. 210 lbs. (4) SZ Series, digressive and linear valve
BILS7Z-3050 20.00" 13.14" 7" 160 lbs. 260 lbs. monotube gas, 2" O.D. steel bodied shock
BILS7Z-3060 20.00" 13.14" 7" 160 lbs. 320 lbs. absorbers with 1.81" (46mm) pistons.
BILS7Z-3530 20.00" 13.14" 7" 185 lbs. 160 lbs. Part No. Description
BILS7Z-3545 20.00" 13.14" 7" 185 lbs. 235 lbs. DP1 Shock Absorber Package
BILS7Z-4040 20.00" 13.14" 7" 210 lbs. 210 lbs. BILS7Z-DP1LF Left Front Shock Absorber
BILS7Z-4555 20.00" 13.14" 7" 235 lbs. 290 lbs. BILS9Z-DP1LR Left Rear Shock Absorber
BILS7Z-5030 20.00" 13.14" 7" 260 lbs. 160 lbs. BILS7Z-DP1RF Right Front Shock Absorber
BILS7Z-5050 20.00" 13.14" 7" 260 lbs. 260 lbs. BILS9Z-DP1RR Right Rear Shock Absorber
BILS7Z-5555 20.00" 13.14" 7" 290 lbs. 290 lbs. Optional DP2 Shock Absorbers
BILS7Z-6010 20.00" 13.14" 7" 320 lbs. 80 lbs. BILDP2LF Left Front Shock Absorber
BILS7Z-6020 20.00" 13.14" 7" 320 lbs. 120 lbs. BILDP2LR Left Rear Shock Absorber
BILS7Z-6040 20.00" 13.14" 7" 320 lbs. 210 lbs.
BILS7Z-6060 20.00" 13.14" 7" 320 lbs. 320 lbs.
BILS7Z-7030 20.00" 13.14" 7" 380 lbs. 160 lbs.
BILS7Z-7045 20.00" 13.14" 7" 380 lbs. 235 lbs.
BILS7Z-7060 20.00" 13.14" 7" 380 lbs. 320 lbs. SN SERIES RACER REBUILDABLE
BILS7Z-8040 20.00" 13.14" 7" 500 lbs. 210 lbs. SHOCK ABSORBERS
BILS7Z-8060 20.00" 13.14" 7" 500 lbs. 320 lbs. SN Series shocks, which are offered with choice of steel or
BILS9Z-2040 23.44" 14.94" 9" 120 lbs. 210 lbs. aluminum top with Schrader valve for charging, feature 2" O.D.
BILS9Z-2060 23.44" 14.94" 9" 120 lbs. 320 lbs. nickel plated steel bodies, 1.81" (46mm) pistons and are ideal
BILS9Z-2080 23.44" 14.94" 9" 120 lbs. 500 lbs. for use on modifieds, late models and sprints. Rebuilable/revalv-
BILS9Z-3030 23.44" 14.94" 9" 160 lbs. 160 lbs. able shocks may be disassembled and re-assembled for quick
BILS9Z-3050 23.44" 14.94" 9" 160 lbs. 260 lbs.
BILS9Z-3060 23.44" 14.94" 9" 160 lbs. 320 lbs. repair or valving change, and every single replacement part
BILS9Z-3530 23.44" 14.94" 9" 185 lbs. 160 lbs. is available separately for economical, do-it-yourself repairs.
BILS9Z-4010 23.44" 14.94" 9" 210 lbs. 80 lbs. Available with linear or digressive piston.
BILS9Z-4020 23.44" 14.94" 9" 210 lbs. 120 lbs. Extended Collapsed
Length
Description
Part No.
BILS9Z-4040 23.44" 14.94" 9" 210 lbs. 210 lbs. Aluminum Top Shock Absorbers Length Stroke
BILS9Z-4555 23.44" 14.94" 9" 235 lbs. 290 lbs. BILB46-LTA7 7" Linear Piston 20.23" 13.35" 6.88"
BILS9Z-5030 23.44" 14.94" 9" 260 lbs. 185 lbs.
BILS9Z-5050 23.44" 14.94" 9" 260 lbs. 260 lbs. BILB46-DTA7 7" Digressive Piston 20.23" 13.35" 6.88"
BILS9Z-5555 23.44" 14.94" 9" 290 lbs. 290 lbs. BILB46-LTA9 9" Linear Piston 23.60" 15.08" 8.52"
BILB46-DTA9 9" Digressive Piston
BILS9Z-6010 23.44" 14.94" 9" 320 lbs. 80 lbs. Steel Top Shock Absorbers 23.60" 15.08" 8.52"
BILS9Z-6020 23.44" 14.94" 9" 320 lbs. 120 lbs. BILB46-LTA7S 7" Linear Piston 20.08" 13.50" 6.58"
BILS9Z-6040 23.44" 14.94" 9" 320 lbs. 210 lbs. BILB46-DTA7S 7" Digressive Piston 20.08" 13.50" 6.58"
BILS9Z-6060 23.44" 14.94" 9" 320 lbs. 320 lbs. BILB46-LTA9S 9" Linear Piston 23.44" 15.16" 8.28"
BILS9Z-7030 23.44" 14.94" 9" 380 lbs. 160 lbs. BILB46-DTA9S 9" Digressive Piston 23.44" 15.16" 8.28"
BILS9Z-7060 23.44" 14.94" 9" 380 lbs. 320 lbs.
STEPS FOR PURCHASING REBUILDABLE-REVALVABLE SHOCKS:
1. Choose shock length and style
2. Choose corresponding valve kit
3. Fill kit
4. Oil
SZ SERIES
“COB” STEEL SHOCK ABSORBERS SN SERIES SHOCK
Bound to be popular on late models and modifieds, 2" O.D. steel bod-
ied SZ Series shocks use 1.81" (46mm) pistons to provide consistent, REPLACEMENT STEEL TOP
fade-free performance. Specialized, “COB” digressive pistons with BILE4-LG0-Z015A00
check valves installed on the compression side, create less bleed and Replacement steel cap has a provision for a Schrader valve.
more damping force on the rebound side, particularly at low piston
speeds. May be converted to coil-over application.
Extended Compressed Rebound Compression
Part No. Length Length Valving Valving
BILS7Z-7-2COB 20.00" 13.14" 7 2
BILS7Z-8-2COB 20.00" 13.14 8 2
BILS7Z-9-2COB 20.00" 13.14" 9 2
BILS7Z-10-2COB 20.00" 13.14" 10 2
BILS7Z-12-2COB 20.00" 13.14" 12 2

RON MILLER JOHN BERGLUND
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