RL1076 2F SNIPER THERMO HOUSE MOD FOR SNIPER TEMP SENSOR – TOYOTA LAND CRUISER (SN2-18)

RL1076 2F SNIPER THERMOSTAT HOUSING MODIFICATION FOR SNIPER TEMPERATURE SENSOR – TOYOTA LAND CRUISER

Here at Red Line Land Cruisers, located in Colorado Springs, we are continually pushing forward on the Holley EFI “Sniperization” of F & 2F Toyota engine development!

Toyota FJ40 Land Cruiser cylinder heads come in “two flavors!”

Why does this matter? Toyota FJ40 Land Cruiser cylinder heads come in “two flavors,” 2-Port and 3-Port heads across the range of 40-Series Land Cruisers. When adding the Holley Sniper System your your 40-Series, the headunit is equipped with an electronic water temperature sensor. If the cylinder head is the 3-Port design, you can use our 2F/F Reducing Bushing for the Holley Sniper Coolant Temperature Sensor and disregard this Thermostat Housing Modification. BUT, if your FJ40 2F Cylinder Head is a 2-Port design, then you can use our RL1076 2F Modified Thermostat Housing in order to place your Holley Sniper Coolant Temp Sensor in place.

Lets start with the “how do I know what type of cylinder head do I have?” Previous owner said it’s “all original,” but how do you verify that your motor is not Frankenstein’s cousin? Here is the “quick-vis-guide.”

IDENTIFY: WHAT CYLINDER HEAD DO YOU HAVE

If your 2F FJ40 Cylinder Head is a 2-Port design, we’ve modified the lower thermostat housing so you can install the Holley Sniper Coolant Temperature Sensor into it. We’ve recently discovered that some of you are crossing your fingers and “cross-threading” the Sniper Coolant Sensor’s NTP threads into the Toyota 2F Coolant Drain which is a BSPT threaded port. Maybe you are sealing it with some type of super-sealant or “gorilla-torquing” it to “permanently-sealed” status. While the “cross-threaded-way” may be a “fix-it-&-forget-it” backyard solution, we built a serviceable system.

Lower Thermostat Housing Modified for Sniper Coolant Sensor

The coolant and block stays the coldest the longest at the Coolant Drain location as the drain is below the combustion line and reward on the engine. But as the engine becomes heat-soaked, this portion of the engine block is the hottest.

A better way for the Holley Sniper Coolant Sensor to take water temperature readings

The 2F engine thermostat located within the thermo-housing is positioned up at the front of the engine between the block and cylinder head.  Water flowing through this area changes much quicker than within the block itself. This is where Toyota themselves have set up the water temp monitoring via the Thermostatic Vacuum Switching Valve (TVSV) for the carburetor to adjust for cold start parameters and normal running conditions. As electronic fuel injection is even more critical of monitoring temperatures, it is important to monitor coolant conditions as best possible, thus why not do it where Toyota themselves deemed it important.

Red Line Land Cruisers is providing you the easiest bolt-on solution with a Thermostat Housing modified for the SNIPER Temp Sensor for the EFI conversion of your 2F engine in your FJ40/60 Land Cruiser.

Hardware Included as the factory bolts will be too long and will bottom out when using the RL1076 housing. 

Since you will be removing the Upper and Lower Radiator Water Housings, you may as well change your thermostat and gaskets! Again, you want to give your 2F engine the very best chance of being as strong and reliable as possible when doing the 2F Sniper Conversion!

OPTIONAL ADD-ON KIT IN THE CHECK-OUT PULL DOWN:
• 90916-03014 THERMOSTAT
• 90430-40058 GASKET, THERMOSTAT
• 16341-60020 GASKET, WATER OUTLET
• 16343-60011 GASKET, WATER OUTLET HOUSING (discontinued: 16343-60010)

See all of our FJ 2F SNIPER accessories:
https://redlinelandcruisers.com/product-category/40-series/sniper-kit/

FJ60 2F SNIPER Accessories: https://redlinelandcruisers.com/product-category/60series/fj60-2f-sniper-kit/