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This machined billet aluminium thermostat housing has been manufactured specifically for use on Small Block Magnum engines, and LA-engines fitted with the later version Mopar M1 Intake Manifold which requires a smaller diameter housing than other manifolds.

These new billet housings will last longer and aren't prone to cracking like cast part and will outlast the cast type many times over!

• Fits late model factory magnum manifolds and some M1 Mopar manifolds
• CNC precision machined
• High quality billet alloy material
• Max thermostat width 55mm
• Center to Center bolt hole distance approx 73mm