TracTuff Extreme Clearance K Filler Neck – FWD

Description

This variant is for the FWD market. Please note that the product shown is just an example. These are made to order, so small revisions can be made to suit your specific needs. Large changes can be made, but do expect the price to reflect the additional effort.

Please, do not ask… I will not sell either component of this kit separately, as they are only meant to work together.

The outlet on the K24A, K24A2, and K20Z3 sits over the transmission, and I’ve seen that this creates trouble in several situations, and as the popularity of the k swap grows, I fully expect that this scenario will also. The four bolt block-off measures 11/16″ thick and takes less space than the traditional K20 cam sensor or is equal to the K24 cam sensor, giving you the MAXIMUM clearance possible. The flange uniquely merges the original water outlet with the traditionally unused EGR passage on RBB and RBC cylinder heads, sending water to the intake manifold flange surface, where a hybrid water bypass adapter re-merges the EGR port with the enlarged original water bypass port to achieve a level of flow that allows this unique water bypass to serve as an outlet.

I highly recommend the purchase of the M5 Drill and Tap Kit to support the standard upper link. Here is a “How to” drill the cylinder head for the optional M5 retaining bolt. The hardware kit includes installation hardware and o-rings (not shown) for the block-off and the water bypass outlet.

It is MADATORY that you open up the cylinder heads’ original water bypass port using the included template. The original passage, combined with the EGR passage, is not enough on its own, so the cylinder heads bypass port MUST be enlarged. DO NOT buy this product if you are not prepared or capable of performing this task. The template should be used to either scribe a line or paint the area, giving you a guide to stay within as you grind. The .500″ hole can easily be opened up to .830″ x .920″ at the widest points (approximately) to increase flow enough and be combined with the .750″ EGR passage to serve as the new outlet.

If you are using AN lines, it is IMPERATIVE that you design the upper radiator hose so that there is droop/ give in the hose so the engine’s movement does not push/ pull on the water bypass outlet; the upper link and/ or link and small M5 bolt combo should not be under stress. I cannot emphasize this enough! It’s even more critical in an FWD environment due to the short hose run!

The block-off does NOT have a heater outlet, but if you have the room, I can add a straight 11/16″ hose barb or -10 male flare. If you do not have the room, I recommend my M28 to -10 male flare adapter.

Photo Courtesy of kulitgarage