PRP 4540 GM Chevy LS LS1 LS2 LS6 Billet Thermostat Housing Straight Water Neck

PRP 4540 LS thermostat housing straight / water neck

• Fits LS1, LS2, LS6, and pre-2008 LS7 style engines
• May also fit 4.8, 5.3 and 6.0, please compare your current housing with the photo
• Will not fit 2008+ LS3, LS7, LS9, LSA, L76, or L92 water pumps
• Machined from solid 6061-T6 aircraft grade billet aluminum in the USA
• Replaces factory angled housing
• Accepts factory size hose: 1.5"
• For use without thermostat