Ford SB 260 289 302 Windsor LowRise Aluminum Intake Manifold [Satin] They're machined from billet aluminum

They're machined from billet aluminum for lasting durability and good looks

like lower cost steel ones

These retainers are available in a variety of lock angles and sizes to suit your needs

extending the life of the crankshaft and bearings for enhanced power and torque

Ford SB 260 289 302 Windsor LowRise Aluminum Intake Manifold [Satin] They're machined from billet aluminumThe Speedmaster LowRise Manifolds are our lowest profile manifold and is also the only one that is street legal on pollution controlled vehicles. It is set up to accept a square bore carbs. To remain street legal with a square bore carb, you must use one that is also approved as street legal for your application.