In stock
SKU
W40DCOETWDOP

Datsun A14 A15 Oval Port - GENUINE WEBER Twin 40 DCOE Carburettor Conversion Kit

$1,790.00

This carburettor package is an excellent upgrade for those who are looking for more performance, power and torque, in a street able package. These carburettors provide a greatly improved throttle response.

The Weber carbs are a 40mm DCOE. These are more suited for modified street use cars. For more aggressive/track/racing, the 45mm carbs will be a better option for motors constantly revving 3500rpm +

We still have a limited number of GENUINE ORIGINAL ITALIAN MADE, DCOM carbs. Please call us if you prefer this option. The original Italian Webers are reconditioned to "As New" condition.

This is a Brand New, GENUINE Spanish-made Weber 40 DCOE carburettor with ram tubes. These are one of the most popular aftermarket sports carburettors fitted to most 4 Cylinder, 6 cylinder and some 8 Cylinder motors around the world. Generally an instant power and torque increase from most factory standard carburettors.

40 DCOE's are an excellent choice for motors 2.5L and below, especially if you are going for a throat per cylinder application. Generally 45 DCOE's would be used for more race type of setup where revs are going to be constantly higher. A 40 DCOE will still give you that sporty feel and great induction noise, just without the flatspots that a 45 DCOE would produce for small motors.

DCOE Carburettors have been around for a long time, many with different variations with calibration etc. The more older and efficient motors are getting today, tuners are finding it harder to tune the older model Weber's. In particular is the transition from progression to main circuits. Traditionally, most older Weber's used either a 2 or 3 hole Progression. This was fine to use in the day but we are demanding for smoother driving vehicles with the introduction of Computer Controlled cars. Weber are now producing a 4 Hole Progression carburettor to help eliminate flat spots off the mark and allowing tuners to refine their calibration to a more acceptable level.

These model DCOE's are a must if you are looking to get the best performance out of any engine. The benefits of fitting DCOE's are their fine tuning capabilities. With DCOE's, you can alter the following:

  • - Choke Venturis
  • - Booster Venturis
  • - Main Jets
  • - Air Jets
  • - Emulsion Tubes
  • - Idle Jets
  • - Idle Emulsion
  • - Pump Jet
  • - Cold Start Jet
  • - Needle Valve Size
  • - Idle Air Bleeds


A multitude of tuning areas that you just cannot do easily with most other brands of carburettors.

Know that you're buying a genuine Carburettor. See in our gallery for the photo that outlines where to tell if the carburettor is Genuine or not.

We Hand Prepare these carburettors, making sure that the following are set:

  • - Float levels to Weber Standard
  • - Throttle Butterflies are aligned and moving freely
  • - Mixture screws are set to a standard stetting
  • - Idle Speed screw is set to a standard setting
  • - Idle Air Bleed screws are set to zero


These are done so that we know you are getting a product that is more likely to bolt on and run for you without any hassle.

The kit comes with ram tubes included. If you prefer air filters, please contact us direct to organize them.

Redline linkage kit uses HEX rod (no slip) and all metal parts (no plastic)

The upgrade kit includes the following:

  • - 2 x 40 New Genuine Weber DCOE carburettors
  • - 1x Brand New Datsun A15 oval port intake manifold
  • - Gaskets and hardware to mount carb to manifold (Soft mount kits available as an upgrade option.)
  • - 1x Overhead linkage setup (The Hexagonal rod is not pictured to scale. It is zoomed in. Appropriate length rod will be in the package.)
  • - Ram Tubes (Air filters option available)

    ALL CARBURETTORS REQUIRE PREPARATION AND/OR ASSEMBLY, THIS WILL TAKE 2-4 DAYS
    CONTACT US FOR MORE EXPRESS SHIPPING OPTIONS!
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