TracTuff J Series Water Neck Flanges - V2
The J Series engine has been finding its way into several rear wheel drive swaps, and I've seen some real creative solutions to make the engine fit up against the firewall; some were convoluted and others looked like they would hurt water flow, so I decided to jump in and take a stab at it!
The two-bolt neck had to be taller to line up with the four-bolt neck (due to the offset cylinder heads), so the two would line up without a custom molded hose. Further complicating things, the flanges had to have an offset water passage that was slightly higher than the cylinder head outlet ports for the flanges to clear the edge/ corner of the block's deck. It all paid off because the combo only takes up 2.10" of space!
The four bolt flange uses an OEM gasket (Not Included), incorporates an early M12 x 1.5 J Series ECT sensor port, a 1/8" NPT accessory port, and a -16 ORB outlet. The 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. A custom -8 ORB to 11/16" hose fitting or plug is included so you can choose whether or not to connect a heater core.
The flange-to-flange connection is optional... customers have asked to be able to order it without any welded tube and associated hardware, and I have not had a chance to reshoot the product photos.
- Billet flanges as machined... meaning NO welded tube, silicone hose, or hose clamps (not shown).
- A length of fiber reinforced silicone hose, two hose clamps, two lengths of bead rolled 1.25” aluminum tube welded to each flange (shown).
- 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).
- 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 have the means to hold the water pump inlet tube like the V1 flanges, so you will need to run the J Series Water Pump Inlet or come up with your 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, but a couple of customers have asked for one to be added, so I have made it a non-mandatory option above.