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Chevrolet Small/Big Block Thermostat Housings

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Billet Specialties thermostat housings are precision machined from 6061-T6 billet aluminum and feature a polished or black anodized finish.

Product Features:
• Buna N® O-rings for a positive seal
• O-ring seal eliminates the need for a gasket or sealant
• Swivels for proper hose angle
• Uses 1-1/2” I.D. Radiator Hose
• Stainless steel mounting hardware included
Note: Will not fit with Tune Port Injection