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Dynatech® Long Tube Modified Headers, 1-3/4 Primary, 3-1/2 Collector

SAME DAY SHIPPING! Most orders ship within 24 hours.

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Specs
Material Type:
Steel
Sold in Quantity:
Pair
Finish:
Painted
Flange Style:
Square Port
Header Tube Type:
Chassis
MFG. Part #:
701-10510
Gasket(s) Included:
Yes
Hardware Included:
Yes
Garage Sale:
No
Tube O.D.:
1.75
Port Height:
1.73
Port Width:
1.35
Flange Thickness:
.25
Collector Diameter :
3.50
Drivers Side Dimension A:
23.00
Drivers Side Dimension B:
5.10
Drivers Side Dimension C:
21.13
Passenger Side Dimension A:
14.13
Passenger Side Dimension C:
29.38
Collector Length:
8.00
Notes
There is no "B" dimension for the passenger side header.
Dynatech®® Long Tube Modified Headers, 1-3/4 Primary, 3-1/2 Collector
Dynatech®® Long Tube Modified Headers, 1-3/4 Primary, 3-1/2 Collector
Dynatech®® Long Tube Modified Headers, 1-3/4 Primary, 3-1/2 Collector

Click image to enlarge

Please NOTE the following about this product:

  • This item is sold as a pair.
  • This product is discontinued.

Details

Reviews

Q & A

What's in the Box

These Dynatech® Mid-Length Headers are designed to deliver a smooth power band and will fit your BMS, Dirt Works, GRT, Harris, Jet or Shaw chassis. They fit small-block Chevy applications with angle-plug or straight-plug heads and come with gaskets, bolts and hardware.
 
  • Includes gaskets, bolts and hardware.
  • Works with angle-plug or straight-plug SBC. 

These headers will work with the following chassis:

  • BMS
  • DirtWorks
  • Hot
  • Pro
  • Jet
  • KMod
  • Smileys
  • Quick
  • Pierce
  • Hoffman
  • Sardeson
  • Victory 
  • GRT
  • Harris
  • Shaw

Item Details

1.75" Tube w/ 3.5" Collector

Customer Reviews

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All Dynatech® IMCA Modified headers are built with CNC laser-machined flanges. With port holes accurate to .003" and total warp less than .025", you can be assured that you will get all the performance and quality possible from your headers. 

Fits Dirt Works, Champion, Hot, Pro, New Shaw, Lightning and other chassis. 3-1/2" collector.

  • Long tube design with proper range of the tube lengths to deliver maximum power, but with a flatter torque curve
  • CNC laser-machined flanges

Clearance!

NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS

 

Dynatech® Mid Lenght Headers, 1-3/4 Primary, 3-1/2 Inch Collector
(Part #31170110410)
                        
These Dynatech® Mid-Length Headers are designed to deliver a smooth power band and will fit your BMS, Dirt Works, GRT, Harris, Jet or Shaw chassis. They fit small-block Chevy applications with angle-plug or straight-plug heads and come with gaskets, bolts and hardware.

Fits these chassis: 

  • BMS
  • Dirt Works
  • GRT
  • Harris
  • Jet
  • Shaw

Header Dimension Chart

Item Details

1.75" Tube w/ 3.5" Collector
Dynatech® Long Tube Modified Headers, 1-5/8, 1-3/4 Primary, 3 Collector
(Part #31170110310)
                        

These Dynatech® Long-Tube Headers have longer primary pipes to produce maximum torque and horsepower. They come with gaskets, bolts, hardware and fit small-block Chevys with angle-plug or straight-plug heads.

Header Dimension Chart

  • Includes gaskets, bolts and hardware. 
  • Works with angle-plug or straight-plug SBC. 

These headers will work with the following chassis:

  • BMS
  • DirtWorks
  • Hot
  • Pro
  • Jet
  • KMod
  • Smileys
  • Quick
  • Pierce
  • Hoffman
  • Sardeson
  • Victory

Item Details

1.625"-1.75" Tube w/ 3" Collector
Dynatech® Long Tube Modified Headers, 1-3/4 - 1-7/8, 3-1/2 Collector
(Part #31170110610)
                        
These Dynatech® Mid-Length Headers are designed to deliver a smooth power band and will fit your BMS, Dirt Works, GRT, Harris, Jet or Shaw chassis. They fit small-block Chevy applications with angle-plug or straight-plug heads and come with gaskets, bolts and hardware.
 
  • Works with angle-plug or straight-plug SBC. 
  • Includes gaskets, bolts and hardware. 

These headers will work with the following chassis:

  • BMS
  • DirtWorks
  • Hot
  • Pro
  • Jet
  • KMod
  • Smileys
  • Quick
  • Pierce
  • Hoffman
  • Sardeson
  • Victory
  • GRT
  • Harris
  • Shaw

Item Details

1.75"-1.875" Tube w/ 3.5" Collector
Left Side Crash Replacement Modified Long Tube Design Header, 1-3/4 In
(Part #31170110511)
                        

Left hand side crash replacement headers for modified long tube design header. 

Tube Size: 1.750"

Application: Small Block Chevy