Page 263 - 2020-2021 Racecar Engineering Drag Racing Parts and Accessories Catalog

2020 DRAG RACING

SB Chevy Comp/Super Gas Strut V-Clamp Kits
Front Weld-Up Header Kit Special V-clamps ease the installation or removal of custom
DTH762-91510 exhaust systems. Ideal when adding collector extensions,
Weld-up header kit mufflers, etc. Offered for 2-1/2" or 3" tubing, each kit
for popular small includes two weld-on V-clamp rings and stainless steel
block Chevys offers V-band clamp.
optimized port exit Part No. Description
angle and stepped 1-7/8"-2" primary tubes for increased horsepower DTH794-91225 V-Clamp Collar Assembly, 2-1/2" Dia.
(3-1/2" collector size). Kit is tack welded to ease changes or perform finish DTH794-91230 V-Clamp Collar Assembly, 3" Dia.
welding. Sold complete with CNC laser-cut flanges, pre-bent primary tubes,
gaskets, and bolts. Collectors must be purchased separately. Racing Header Gaskets
Custom die-cut gaskets perfectly match
Dynatech header flanges. Sold per pair.
Slip-On Collectors
Part No. Description
Bolt-on, right out of the box. Mild steel con- DTH794-00000 SB Chevy, Spread Port
struction collectors are 12" in length and each DTH794-00001 SB Chevy, Std. Port 23°
have an e-vac bung for easy installation of a DTH794-03001 SB Chevy, 18°/Dart
crankcase evacuation system or an oxygen DTH794-50001 BB Chevy Gen IV Round Port
sensor. Choose from black painted or silver ceramic coated. Sold each. Racing Header
Outlet Accessories
Slips Over Size Black Painted Silver Ceramic Coated
2-1/4" 4" DTH783-71240 — Part No. Description
2-3/8" 4" — DTH783-81241 DTH785-10094 18mm O2 Plug
DTH785-10096 Replacement O2/Crankcase Evacuation Bung Cylinder Head Shown
2-3/8" 4-1/2" DTH783-81245 DTH783-81246 DTH785-10095 O2 Sensor/Pan E-Vac Kit With DTH796-00100 Installed
2-1/2" 5" DTH783-91250 — DTH785-10097 18mm Weld-On Bung
DTH796-00100 SB Chevy Stahl Header Adapter
Merge Collectors
Split-Flow Race Mufflers
Unique reduction angle provides 5-10 added
horsepower and increases torque. Slip-on style, Straight-through muffler reduces the decibel
black painted collectors are sold individually. level of powerful street or strip engines and still
Part No. Slips Over Outlet Size maintains a powerful sound. Lightweight, aluminized muffler has dual pat-
DTH780-02518 2-1/4" 4" tern core with stainless steel sound absorbing material to prevent burnout.
DTH780-03519 2-3/8" 4-1/2" Available in oval and round styles.
DTH780-03510 2-1/2" 4-1/2" Part No. Description Inlet Outlet
DTH780-03519 2-3/8" 4-1/2"
DTH780-03510 2-1/2" 4-1/2" Oval Race Muffler (14" L x 7" W x 4-1/2' H)
DTH776-14252 Split-Flow Muffler 2-1/2" 2-1/2"
DTH776-14302 Split-Flow Muffler 3" 3"
Turndowns DTH776-14352 Split-Flow Muffler 3-1/2" 3-1/2"
Slips over existing exhaust pipe or collector end for a slight noise reduction. DTH776-14402 Split-Flow Muffler 4" 4"
Round Race Muffler (6" L x 5" Dia.)
Part No. Description DTH776-06302 Split-Flow Muffler 3" 3"
DTH780-00100 Turndown, 3" Dia. DTH776-06352 Split-Flow Muffler 3-1/2" 3-1/2"
DTH780-00200 Turndown, 3-1/2" Dia.
DTH780-00050 Turndown, 4" Dia.
Vortex Cone Muffler
Collector Extension The Vortex Cone Muffler is installed into the header collector
DTH780-00314 near the exit. This compact 304 stainless steel cone insert
reduces noise level without robbing horsepower. The unique
Collector extensions help increase bottom end torque for quicker 60' times.
Extension is 3" dia. x 14" long. Sold each. perforated and diagonal baffled design creates a vortex flow
which does not affect back pressure or scavenge perfor-
mance. Ultra lightweight-only a 1/2 pound of performance.
Clamp Collars
Includes mounting hardware. Sold each.
Connect collector extensions, X-pipes, or mufflers
Part No. Size
without welding. DTH772-32520 3" x 4.750" Long
Part No. Description DTH772-32530 4" x 7.250" Long
DTH794-90200 Clamp Collar Kit, 3" Dia. DTH772-32540 4.5" x 7.375" Long
DTH794-90350 Clamp Collar Kit, 3-1/2" Dia.
DTH794-90400 Clamp Collar Kit, 4" Dia.

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