- Neck rotates 360 degrees 30 degree angle for maximum versatility in engine swaps
- Die-cast aluminum for strength and durability and resist corrosion
- Thick mounting flange prevents warping and provides a positive coolant seal
- Chrome-plated for looks
- Allen head stainless steel bolt mount flush to flange for custom look
- Uses commonly available 1-1/2 radiator hose (casting I.D 1-3/16")
Note: Fits 1997-2020 GM LS Engines only, will not fit 2013-up Gen V engines. 1997-2003 & 2009 engines REQUIRE a 2004-2008 style thermostat. Use part number 6367 for 160 degree, or 6368 for 180 degree thermostat.
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