Tri-Y Crossover Headers SCH135VYCM For small block Chevy crate motors with Vortec cylinder heads, crossover headers feature a 4-in- WRLQWR7UL<FRQ¿JXUDWLRQIRU increased torque. Headers include “stepped” 1-5/8"-1-3/4" primary tubes and 3" dia. collectors. Fits Hamke, Howe, Lefthander, and Port City chassis. 180° Crossover Headers
Asphalt Late Model Headers (Cont.) Crate Motor Crossover Headers Fits crate engines in Bemco, Hamke, Howe, Lefthander, and Port City Chassis. Vortec/Fast Burn Part No. “H” Style Part No. Description SCH135CM SCH135HCM* Chevy Headers
Primary Tube Dia. 1-5/8" 1-5/8"
Collector Dia. x Length
3" x 8"
SCH135CM2** 3" x 8" SCH135VCM-3 SCH135VHCM-3* “Step” Headers 1-5/8"-1-3/4" 3" x 8" * “H” Style headers fit Howe, Port City, and Stock Clip Cars (#7 tube extend- ed toward the rear and angled for clearance of foot box and chassis bars). ** 602 Crate Conventional Crossover Headers — Chevy Headers
³+´VHULHVKHDGHUV¿WVPDOOEORFN&KHY\LQ Howe, Port City, Lefthander offset chassis, and earlier straight-up models. “H” Series Part No. Description Primary Tube Dia. Collector Dia. x Length SCHH180 Chevy Headers 1-3/4" 3-1/2" x 9" SCHH180V “Step” Headers 1-3/4"-1-7/8" 3-1/2" x 9"
Small block Chevy headers extend away from the cylinder head and wrap behind the engine. Available for standard exhaust port engines only. Standard Part No. Crate Motor Part No. Description Lower RH Door Exit SCH145 SCH145CM2** Chevy Headers
Lower RH Door Exit Headers are compatible with a stock bellhousing and use 48" extensions. Applications available to ¿WVWDQGDUGH[KDXVWSRUWVPDOOEORFN Chevy engines.
Primary Tube Dia.
Collector Dia. x Length
1-5/8"
3" x 8"
SCH145V — “Step” Headers 1-5/8"-1-3/4" 3-1/2" x 8" — SCH145VCM-3 “Step” Headers 1-5/8"-1-3/4" 3" x 8" SCH146 — Chevy Headers 1-3/4" 3-1/2" x 8" SCH146V — “Step” Headers 1-3/4"-1-7/8" 3-1/2" x 9" **602 Crate
Primary Tube Dia.
Collector Dia. x Length
Part No.
Description
SCH179-1 Chevy Headers 1-5/8" 3" x 8" SCH180-1 Chevy Headers 1-3/4" 3-1/2" x 9"
Dirt Late Model Headers Schoenfeld’s headers for small block Chevy-powered Dirt Late Models have long primary tubes for maximum torque and horse- power. Available in traditional and stepped tube design. Stepped tubes increase exhaust velocity, horsepower, and torque. Most headers are available in standard or spread exhaust port. Headers are also available for crate motor applications.
Mastersbilt and Warrior Chassis Both headers go over the frame. Standard Chevy Part No. Crate Motor Part No. Primary Tube Dia. — SCH141-505LVGCM-3 1-5/8"-1-3/4"
Collector Dia. x Length
3" x 8"
SCH142-505LVG
—
1-3/4"-1-7/8"
3-1/2" x 9"
Rocket Chassis/Bernheisel Both headers go over the frame. Standard Chevy Part No. Crate Motor Part No.
Spread Port Part No.
Chevy 18° Part No.
Primary Tube Dia.
Collector Dia. x Length
SCH141-525LV
—
— — —
— 1-5/8"-1-3/4" 3-1/2" x 8" — 1-5/8"-1-3/4" 3" x 8"
— SCH141-525LVCM-3
SCH142-525L SCH142-525LV
—
—
1-3/4"
3-1/2" x 8"
— SCH142-525LVSP SCH142-525LV18 1-3/4"-1-7/8" 3-1/2" x 9" American Made, Barry Wright, Bullitt, GRT, Larry Shaw, Raider, Rayburn, Stinger, and TNT Chassis %RWKKHDGHUVJRRYHUWKHIUDPH:LOOQRW¿W*57FRPSXWHUFDU Standard Chevy Part No. Crate Motor Part No. Spread Port Part No. Chevy 18° Part No. Primary Tube Dia. Collector Dia. x Length SCH141-605LVG — — — 1-5/8"-1-3/4" 3-1/2" x 8" SCH141-605LVG-3 SCH141-605LVGCM-3 — — 1-5/8"-1-3/4" 3" x 8" SCH142-605LG — — — 1-3/4" 3-1/2" x 8" SCH142-605LVG — SCH142-605LVGSP SCH142-605LVG18 1-3/4"-1-7/8" 3-1/2" x 9" GM LS Crate Motor in Bullit, GRT, Shaw, Rayburn or Warrier Chassis Part No. Description Primary Tube Dia. Collector Dia. x Length SCH142-605LGLS1 “605” Offset, Bullitt, GRT, Shaw, Rayburn, Warrior 1-3/4" 3-1/2" x 8"
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CIRCLE TRACK 2021-22
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