TracTuff J Series Water Neck Flanges - V2
The J Series engine has been finding its way into several Rear Wheel Drive chassis, and I've seen some creative attempts making the cooling system work while being pressed up against a firewall. Some were very convoluted, and others looked like they would hinder water flow or create troublesome air pockets, so I decided to take a stab at it.
The two-bolt flange had to be taller than the four-bolt flange for the two to line up; a common theme with V motors due to the offset cylinder heads. Further complicating things, the flanges both had to have raised offset water passages so that the flanges would clear block casting features. Redesigning the camshaft thrust cover allowed the combo to work within a space of just over two inches (2.10" to be exact)!
The four bolt flange uses an OEM gasket (Not Included) to seal, incorporates an early M12 x 1.5 J Series ECT sensor port, a 1/8" NPT accessory port, and a -16 ORB outlet port that can be used or plugged depending on your configuration goals. The -16 ORB outlet will allow you to choose between a 1.25" standard hose, a -16 male flare or an XL (Extra-Long) -16 male flare fitting to make your upper radiator hose connection. The two-bolt flange uses an o-ring (included) to seal against the cylinder head and incorporates a -8 ORB heater outlet port. You have the option of a -8 ORB to 11/16" hose fitting or -8 ORB plug.
The flange-to-flange connection is optional... customers have repeatedly asked to be able to order just the billet flanges without any welded tube or associated hardware, so they can create their own unique solution. I just haven't had a chance to reshoot the product photos to reflect this.
- Billet flanges as machined... meaning NO welded tube, silicone hose, or hose clamps (not shown).
- Billet flanges with two lengths of bead rolled 1.25” aluminum tube welded to each flange, a length of fiber-reinforced silicone hose, and two hose clamps (shown)
- Billet flanges with two lengths of 1.25” aluminum tube with welded single o-ring -20 Wiggins/ Hydraflow bungs welded to each flange, a purple quick disconnect clamshell, sleeve, and two o-rings (not shown).
- Billet flanges with two lengths of 1.25” aluminum tube with welded single o-ring -20 Wiggins/ Hydraflow bungs welded to each flange, a black quick disconnect clamshell, sleeve, and two o-rings (not shown).
NOTE: These unique flanges do not include or incorporate a thermostat, nor do they have any means of holding the OEM water pump inlet tube that sits in the valley, like the V1 flanges do. You will need to run my inline thermostat and J Series Water Pump Inlet, or come up with your own solution. I also offer a side exit option that routes the outlet along the driver-side valve cover for those who are interested.
The flange was not designed with a fan switch port; it's technically not the correct location for it, but a couple of customers have insisted on one being added, so I have made it a non-mandatory option above.