Page 709 - 2021-22 Auto Performance_Circle Track
P. 709
Turn-Outs
Part No. Size Length
* Aluminized
Collector Extensions
12" 24" 30" 36" 48"
Elbows
Part No.
Dia. Angle
Center Line Radius
“B” “A” Length Length
SCH2525
2-1/2"
10"
SCH2525-3
2-1/2"
10"
SCH3023
3"
4-1/4"
SCH3025
3"
10"
SCH3026
3"
15-1/2"
SCH3523
3-1/2"
4-1/2"
SCH3524
3-1/2"
8"
SCH3525
3-1/2"
10"
SCH4025*
4"
10-1/2"
SCH5025
5"
12"
SCH2545
2-1/2"
45°
5-1/4"
6-1/2"
5"
SCH2590
2-1/2"
90°
5-1/4"
5-3/4"
5-3/4"
SCH3031
3"
30°
4"
6-1/2"
6-3/4"
SCH30310
3"
30°
5"
2"
7"
SCH3032
3"
30°
4"
15-1/2"
6"
SCH3042
3"
42°
4"
10"
10"
SCH3045
3"
45°
4"
5"
6"
SCH3081
3"
80°
5"
1-5/8"
5"
SCH3090
3"
90°
4"
5"
5-1/4"
SCH3091
3"
90°
5"
2"
2-1/2"
SCH35310
3-1/2"
30°
5"
2"
6"
SCH3531
3-1/2"
30°
5"
6-1/4"
6"
SCH3532
3-1/2"
30°
5"
15-1/2"
6"
SCH3542
3-1/2"
42°
5"
10"
10"
SCH3545
3-1/2"
45°
5"
6-1/2"
3-1/2"
SCH3560
3-1/2"
60°
5"
6"
1-1/2"
SCH3590
3-1/2"
90°
5"
5-1/4"
2-3/4"
SCH3591
3-1/2"
90°
5"
2"
2-1/2"
SCH4045
4"
45°
6"
3"
3"
SCH4090
4"
90°
6"
3"
3"
SCH5045
5"
45°
6"
6"
6"
SCH5090
5"
90°
5"
1-1/2"
1-1/2"
Description Length Length Length Length
Header Tab Kit
Part No. Description
Length
SCH4003-4
U-Bends
2-1/2"
—
SCH240025
—
—
SCH480025
3" Dia.
SCH120030
SCH240030
—
SCH360030
SCH480030
3-1/2" Dia.
SCH120035
SCH240035
SCH300035
SCH360035
SCH480035
4"
—
SCH240040
SCH300040
SCH360040
—
5"
—
SCH240050
—
—
—
SCH4000-6*
(6) Bolts, (6) Lock Nuts and (12) Washers, Works for Collectors on Tri-Y Headers
SCH016218U
1-5/8" O.D.
SCH017518U
1-3/4" O.D.
SCH018718U
1-7/8" O.D.
SCH020018U
2" O.D.
SCH4003-4 Kit Includes (8) Tabs, (4) Bolts, (4) Lock Nuts and (8) Washers
* Required when attaching collectors to Tri-Y headers.
Slip-Together Reducers
Part No. Description
Miscellaneous Bends
SCH4003-6
Kit Includes (12) Tabs, (6) Bolts, (6) Lock Nuts and (12) Washers
Part No.
I.D. O.D.
Part No. Description
Endurance Series Shaft-Mount Rocker Arms
Part No. Description
TRACK
CIRCLE 2021-22
SCH2530
3"
2-1/2"
SCH2535
3-1/2"
2-1/2"
SCH3030
3"
3"
SCH3035
3-1/2"
3"
SCH3530
3"
3-1/2"
SCH3535
3-1/2"
3-1/2"
SCH4035
4"
3-1/2"
SCHMB175
1-3/4" Diameter
SCHMB187
1-7/8" Diameter
SPN3500
Small Block Chevy 265-400, 1.5/1.5 Ratio
SPN3502
Small Block Chevy 265-500, 1.6/1.6 Ratio
SPN3503
Small Block Chevy 265-400, 1.65/1.65 Ratio NEW!
SPN3504
Small Block Chevy 265-400, 1.7/1.7 Ratio NEW!
SPN3508
Small Block Chevy 265-400, 1.5/1.6 Ratio
SPN3902
Small Block Chevy 265-400, 1.6/1.6 Ratio, AFR 23° Head NEW!
SPN3925
Small Block Chevy 265-400, 1.65/1.5 Ratio, AFR 23° Head NEW!
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