Page 705 - 2021-22 Auto Performance_Circle Track
P. 705
Dirt Late Model Headers (Cont.)
New Design Crate Motor
-
lar small block Chevy 602/604 crate motors. The 24" (from head surface to inside of left collector) Larry Shaw, Raider, Rayburn, Mastersbilt, Stinger, TNT, and Warrior.
Standard Part No.
Standard Part No.
Spread Port Part No.
Spread Port Part No.
18° Part No.
18° Part No.
Description
Description
Primary Tube Dia.
Primary Tube Dia.
Collector Dia.
Collector Dia.
Dia. x Length
Suffix
Description Suffix Description Suffix
Crate Motor Application Y Tri-Y Header **
Mid-Length Primary Style Headers
Mid-length primary headers
for small block Chevy offer a compromise between low-end torque and high-RPM horsepower.
Description
Crate 602
EXHAUST HEADER SUFFIX DESIGNATION GUIDE
V
“Stepped” Primary Tubes
N
Ford “N” Head Application
18
18° Chevy
CM
SP
Spread Port Application
Small Block Chevy - Fits Bandit, Dirt Works, GRT, Hoffman, Jet, Shaw, and BMS chassis
SCH1105
—
—
Chevy Headers
1-5/8"
3"
SCH1105V-3
—
—
“Step” Headers
1-5/8"-1-3/4"
3"
SCH1106
SCH1106SP
—
Chevy Headers
1-3/4"
3-1/2"
SCH1106V
—
SCH1106V18
“Step” Headers
1-3/4"-1-7/8"
3-1/2"
Crate Motor 24" to I/S Crate Motor 26" to I/S
‡ Standard Chevy. ** 602 Crate.
Long Primary Tri-Y Headers
Primary Tube Dia.
Collector Dia.
SCH181-406LVGCM2-3**
SCH181-606LVGCM2-3
1-5/8"-1-3/4"
3"
SCH181-406LVGCM-3
—
1-5/8"-1-3/4"
3"
SCH181-406LV3GCM-3
SCH181-606LV3GCM-3
1-5/8"-1-3/4"-1-7/8"
3"
—
SCH182-606LVG‡
1-3/4"-1-7/8"
3-1/2"
—
SCH182-606LVGCM-3
1-3/4"-1-7/8"
3"
—
SCH180-606LV23GCM-3
1-1/2"-1-3/4"-1-7/8"
3"
Small Block Chevy - Fits Ellis chassis
SCH1152
—
—
Chevy Headers
1-3/4"
3-1/2"
SCH1152V
—
—
Chevy Headers
1-3/4"-1-7/8"
3-1/2"
Long-Tube Primary Style Headers
Small block Chevy Tri-Y
headers have a four-into-
for increased torque and
horsepower. Sold complete with gaskets and bolts. Fits and most other chassis.
add torque and horsepower. Available for a variety of small block Chevy and small block Ford applications.
Standard Part No.
Standard Part No.
Crate Part No.
Part No.
Spread Port Part No.
Spread Port Part No.
Chevy 18° Part No.
Chevy 18° Part No.
Description
Description
Chevy Headers Chevy Headers
Collector Dia. x Length
3" x 8" 3-1/2" x 9"
Dia. x Length
Tube Dia.
Small Block Chevy - Fits BMS, Dirt Works, Hoffman, Jet, KMOD, Bob Pierce, Sardeson, Smiley’s, and Victory.
SCH1185
SCH1185CM2**
—
—
Chevy Header
1-5/8"
3"x8"
SCH1185V
—
—
—
Chevy “Step” Headers
1-5/8"- 1-3/4"
3-1/2" x 8"
—
SCH1185VCM-3
—
—
Chevy “Step” Headers
1-5/8"- 1-3/4"
3" x 8"
SCH1186
—
SCH1186SP
—
Chevy Headers
1-3/4"
3-1/2" x 8"
SCH1186V
—
SCH1186VSP
SCH1186V18
Chevy “Step” Headers
1-3/4"- 1-7/8"
3-1/2" x 9"
Standard Part No.
SCH14260LV3Y
13/15/18° Part No.
—
Description
“Step” Headers
Primary Tube Dia.
1-3/4"-1-7/8"-2"
Collector Dia.
3-1/2"
—
SCH14260LVY18
“Step" Headers
1-3/4"-1-7/8"
3-1/2"
—
SCH14360LVY18
“Step” Headers
1-7/8"-2"
3-1/2"
LS1-LS7
SCH14260LVYLS3
—
Fit Bob Pierce, GRT, Rayburn, Masterbuilt,Larry Shaw, Rocket and most other chassis.
1-3/4"-1-7/8"
3-1/2"x 9"
Fits Harris, Skyrocket and Victory
Tube Dia.
1-5/8" 1-5/8"
Dia. x Length
3" x 8" 3" x 8"
— —
Standard Part No.
SCH11619HCM SCH11619HCM2**
Description
— — — —
Primary Tube Dia.
Fits BMS, Hughes, Larry Shaw, TRE
—
SCH1146V
Standard Part No.
Standard Part No.
Headers “Step Headers"
Description
Description
1-5/8" 1-3/4"-1-7/8"
Cab Forward Style Headers
Small block Chevy-powered
use a cab forward design
Headers are compatible with Bicknell, Olsen, TEO, and Troyer chassis. Sold complete with gaskets and bolts.
Primary Tube Dia.
Primary Tube Dia.
Collector Dia. x Length
Fits Diamond Chassis
SCH1126V
“Step Headers”
1-3/4"-1-7/8"
3" x 8"
Small Block Ford - Standard Windsor
SCH3186
Ford Headers
1-3/4"
3-1/2" x 8"
Description
Primary Tube Dia.
IMCA long-tube headers utilizing long prima-
ry tubes for improved torque and horsepower. Available for standard and crate motor small block Chevys.
** 602 Crate.
Long-Tube Headers
Standard Part No.
Crate Part No.
Spec. Part No.
Collector Dia. x Length
** 602 Crate. CIRCLE 2021-22
—
SCH1122BUCM2*‡
SCH1122BCM2*
Headers
1-5/8"
3"x8"
SCH1122BV-3
—
SCH1122BVSH-3+# SCH1122BVUSH-3+
Step
1-5/8-1-3/4
3"x8"
SCH1124BV+
—
—
Step
1-3/4"-1-7/8"
3-1/2" x 9"
* D.I.R.T Sportsman division spec. header.
+ D.I.R.T. 358 division spec. header. # Std. Chevy flange. ** 602 Crate. ‡ New upswept design.
Standard Part No.
Crate Motor Part No.
Primary Tube Dia.
Collector Dia. x Length
Fit Hoffman, Kazzbuilt, MB Customs, Razor and Sidebiter
SCH1101
SCH1101CM2**
1-5/8"
3" x 8"
—
SCH1101V3CM-3
1-5/8"-1-3/4"-1-7/8"
3" x 8"
TRACK
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