Page 634 - 2021-22 Auto Performance_Circle Track
P. 634
“TA-SS” Series Stock-Mount Shocks
- ing combinations. Ideal for Street Stocks, Hobby Stocks, and Sport Mod race cars. Factory repairable and revalvable.
Part No. Position Stroke Compression Rebound
Full/Mid-Size
GM and Ford; Camaro/Firebird, 1970-81
PROTASS100453
Front
4"
5
3
PROTASS100450
Front
4"
5
5
PROTASS1004511
Front
4"
5
11
PROTASS100458
Front
4"
5
8
PROTASS100460
Front
4"
6
6
PROTASS1004610
Front
4"
6
10
PROTASS100470
Front
4"
7
7
Camaro/Firebird, 1970-81
PROTASS200846
Rear
8"
4
6
PROTASS200862
Rear
8"
6
2
Full/Mid-Size GM
PROTASS201840
Rear
8"
4
4
PROTASS201846
Rear
8"
4
6
KATIE ROBINSON
Street Series Forged Pistons
Manufactured by Wiseco, ProTru Street Series are affordable are affordable forged pistons with features normally found only in - piston pins, Spirolox, and piston rings.
Part No. Bore Stroke Rod Length Comp. Ht. Comp. Ratio
MARCUS BERGLUND
SB Chevy 350 Street Series 23° Hollow Dome
WPTPTS502A3
4.030"
3.480"
5.700"
1.560"
12.0:1
WPTPTS502A4
4.040"
3.480"
5.700"
1.560"
12.2:1
WPTPTS502A6
4.060"
3.480"
5.700"
1.560"
12.2:1
SB Chevy 350 Street Series 23° Flat Top (2-Valve Pockets)
WPTPTS503A3
4.030"
3.480"
5.700"
1.560"
9.8:1
WPTPTS505A3
4.030"
3.480"
6.000"
1.260"
9.8:1
WPTPTS505A6
4.060"
3.480"
6.000"
1.260"
10.0:1
WPTPTS503A6
4.060"
3.480"
5.700"
1.560"
10.0:1
WPTPTS506A4
4.040"
3.750"
6.000"
1.125"
10.5:1
WPTPTS506A6
4.060"
3.750"
6.000"
1.125"
10.5:1
WPTPTS504A3
4.030"
3.750"
5.700"
1.425"
10.5:1
WPTPTS504A6
4.060"
3.750"
5.700"
1.425"
10.7:1
WPTPTS506A3
4.030"
3.750"
6.000"
1.125"
10.5:1
SB Chevy 400 Street Series 23° Hollow Dome
WPTPTS535AS
4.125"
3.750"
6.000"
1.125"
13.3:1
WPTPTS525A3
4.155"
3.750"
6.000"
1.125"
10.4:1
WPTPTS535A4
4.165"
3.750"
6.000"
1.125"
13.6:1
SB Chevy 400 23° Flat Top (2-Valve Pockets)
WPTPTS507A3
4.155"
3.480"
5.700"
1.560"
11.6:1
WPTPTS510A3
4.155"
3.750"
5.700"
1.425"
11.6:1
WPTPTS510A4
4.165"
3.750"
5.700"
1.425"
11.6:1
WPTPTS525A3
4.155"
3.750"
6.000"
1.125"
11.6:1
SB Chevy Gen. III LS1
WPTPTS523A903
3.903"
3.622"
6.098"
1.335"
10.7:1
Note: SB Chevy compression ratios are based upon 64cc combustion chamber volume.
632 TRACK
CIRCLE 2021-22
CHAPMAN RACING
