Page 284 - 2017 Racecar Engineering Circle Track Parts and Accessories Catalog

I.M.C.A. MODIFIED STOCK CLIP-OVER RAIL HEADERS
HEADERS Header collectors exit over rails on
Precision-welded small block stock front clip cars, allowing more
flexibility with engine positioning
Chevy headers have the longest than chassis headers. Small block
possible tubes for maximum torque Chevy headers fit angle or straight plug heads.
and horsepower, and are available with standard
or “stepped” primary tubes. Standard Chevy “A” Tube Collector
Size
Part No.
Standard Chevy Spread Port Tube DTH701-19310 1.750" 3.5"
“A” Part No. “B” Part No. Size Collector Application
DW/Shaw/GRT/Harris, DTH701-29310 1.750"-1.875" 3.5"
DTH701-10410 – 1.750" 3.5"
Mid-Length
Dirt Works/Pierce, MERGE COLLECTORS FOR HEADERS
DTH701-10610 – 1.750"-1.875" 3.5"
Long Tube Merge collectors will squeeze out that last 5-10 horsepower.
DTH701-16510* – 1.750" 3.5" Harris, Skyrocket Not a typical “bolt-on and go” part, it may require dyna-
DTH701-29810 DTH702-29810 1.750"-1.875" 3.5" Dirt Works, Shaw mometer testing to reach full potential. A merge collector
* Signifies headers compatible with GM 602/604 crate engine applications. minimizes the area at the primary tube to collector
juncture, creating a gradual transition to main-
CAMARO tain as much exhaust velocity as possible.
CLIP HEADERS Maintaining exhaust gas velocity is the key
Street stock small block Chevy to reaching maximum efficiency. Collectors
are 100% TIG-welded. Sold Individually.
headers fit 1970-81 Camaro,
1970-77 Monte Carlo, 1964- Part No. Slip Over Outlet Material
77 Chevelle and 1975-79 DTH780-01513 1.625" 3.00" Mild Steel
Nova with the engine in the stock DTH780-01514 1.750" 3.00" Mild Steel
or with additional setback. Manufactured DTH780-00515 1.875" 3.50" Mild Steel
from long-lasting 17 gauge steel with opti- DTH780-00516 2.000" 3.50" Mild Steel
mized tube length and CNC laser cut flanges,
headers may be used with straight plug heads MERGE COLLECTORS FOR SYSTEMS
or "602" crate engines. Clears the OEM clutch linkage. “Y” PIPE
Standard Chevy “A” Tube
Part No. Size Collector Application MERGE COLLECTOR 2x1
1970-81 Camaro, Dynatech “Y” pipes provide extra horsepower
DTH701-20910* 1.625" 3.0"
1964-77 Chevelle and torque over normal dual exhaust. In noise
* Signifies headers compatible with GM 602/604 crate engine applications. restricted classes, cars equipped with the “Y” pipe
will outperform “X” pipe equipped cars.
MONTE CARLO CLIP HEADERS Part No. Inlet Outlet
Small block Chevy street stock headers fit 1972-87 DTH780-21200 3.00" 3.50"
Monte Carlo/Malibu/Grand Prix/Cut- DTH780-21204 3.00" 4.00"
lass/Regal and 1970-81 Camaro with DTH780-21206 3.50" 4.00"
the engine in the stock location. May DTH780-21208 3.50" 5.00"
be used with straight or angle plug
cylinder heads. Headers require use
of a short style oil filter and
will not clear manual clutch U-TAB KITS
linkage ball, OEM air conditioner The same kits Dynatech uses on headers fitted
box, rear or side engine mounts. with slip-on collectors. Four tabs are typically used
Standard Chevy “A” Tube per collector. DTH794-00310
Part No. Size Collector Application Part No. Description
1972-87 Monte Carlo, U-Tab Kit,
DTH701-21910 1.625" 3.0" DTH794-00310
Grand Prix, Cutlass, Regal Includes (2) Tabs, (1) Bolt, (1) Nut And Washers
1972-87 Monte Carlo, U-Tab Kit,
DTH701-31910 1.625"-1.750" 3.0" DTH794-00313
Grand Prix, Cutlass, Regal Includes (4) Tabs, (2) Bolts, (2) Nuts And Washers
1972-87 Monte Carlo, U-Tab Kit
DTH701-22010 1.750" 3.5" DTH794-00320
Grand Prix, Cutlass, Regal Includes (8) Tabs, (4) Bolts, (4) Nuts And Washers

PATTI RYLAND FRED RYLAND
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