The popular Mr. Gasket GM LS water necks are now available in black or a polished aluminum finish. The mounting holes on these water necks are slotted to fit all model years of the GM LS Series engines. Choose from the 30 degree swivel style or a straight water neck. These water necks match the new black and polished accessory drive brackets and are Ideal for use in engine swap applications.
Mr. Gasket GM LS Water Neck Swivel - 30 Degree Angle - Polished FinishPart #: 2670NA
- Length: 2.8"
- Width: 3.8"
- Height: 5.7"
- Emissions Code: 5
- Prop 65: No
REQUIRES a 2004-'08 GM LS Thermostat (i.e. #6367 160 degree, or # 6368 180 degree). Make sure the small air bleed port (located at the tab in the gasket) on the thermostat is facing upward. If necessary, the small tab can be cut off the gasket and thermostat rotated to move this air bleed to the top (this will allow any trapped air to escape). This will only be necessary when the swivel is moved a significant amount vs. the stock water neck.