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Home / Intake Hardware / Throttle Body Injection Kit / 8 Cyl Stack Injection / Ford 8 Cylinder Throttle Body Kits

E-Series Ford 289/302 Windsor Quad E-Series Stack Injection

This Ford 302 Windsor Stack Injection kit is supplied with 50mm Ram Tubes and Throttles.

50mm Throttles are capable of flowing up to 570HP*.

*NOTE: This is the flow rate of the Throttle Bodies, and does not indicate the power that your engine will produce as there are many other factors that will determine the max power produced by your engine.

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Product Options

Including GST for Australian Customers

AUD $3,995.00 (ex GST)
for International Customers

All variations of this product are currently out of stock.

Product Details


We rate our 50mm V8 Stack and Cross Ram kits at 580HP - 600HP. 

This, of course, does not mean that your engine will make that much power, but so long as the rest of the engine and tuning is up to it, this kit can support up to between 580HP and 600HP.


We want to supply your Throttle Body Kit just the way you want it.

That's why we offer both Sub Assembled Kits, and Full Assembled Kits.


By choosing the Fully Assembled Option above, you will receive:

- Each of your Throttle Bodies is precision factory assembled

- Throttle Shafts cut to correct lengths to suit your manifold

- Linkages are fitted and adjusted to ensure correct and smooth operation

  Note: Although we will supply a great linkage fitment, final linkage adjustment

  can only be carried out once the engine is running

- TPS "D" drive on the end of the shaft you stipulate so it's in the best position on your engine

- We may contact you with a few questions to ensure we supply the kit assembled to best

  suit your application


By choosing the Fully Assembled Option above, you will receive:

- Each of your Throttle Bodies is precision factory assembled

- Throttle Shafts are left long so you can trim them to suit your engine and manifold

- Linkages are supplied for you to fit and adjust once you have trimmed your Throttle Shafts

Multipoint Fuel Injection - is the preferred method of fuel delivery, with injectors at each cylinder port.  Using an appropriate ECU and Distributor you can run your V8 in sequential injection mode, gaining lower fuel consumption and better drivability than batch fire fuel injection.

TOTAL HEIGHT: 180mm - from Velocity Stack to Top of Intake Manifold Port

TPS Mounting and Drive - uses an 8mm shaft with 6mm across the "D".  The mounting holes PCD  for the TPS is 32mm.



8 Cylinder MAP Sensor Collector

If you are after great drivability with
great engine response, you should consider
using a MAP Sensor Collector for the ultimate
blend of power, throttle response and 



In the past, 12° throttle plates were the industry standard.  The problem with 12° throttle plates, is that as the plates are moved off the closed position, the change in airflow is huge.  It makes it very difficult to drive smoothly at lower throttle openings.

6° throttle plates improve off idle and cruise driveability making your vehicle far more enjoyable to drive.

Throttle Body Closed Angle - 6 Degree vs 12 Degree

Butterflies are secured to centreless ground brass shafts and screws are loctited to ensure reliability and serviceability. All are fitted with bearings rather than bushes to eliminate axial shaft movement.

Low stiction bearings for sharp throttle response.


800-982WINREFI Hardware - Ford 302 Windsor