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Speedmaster aluminum crankshaft pulleys are manufactured from 356 aluminum that is heat-treated to T-6 specs
Our Speedmaster polished alternator brackets are brand new pieces that are stamped from heavy-gauge steel for strength and durability
Speedmaster piston oil ring spacers are manufactured from spring steel and install against the bottom sill of the oil ring groove
they're guaranteed for life
They have a minimum wall thickness of
Ford SB 289 302 351 Windsor 180cc 60cc Cast Iron Bare Cylinder Head Speedmaster aluminum crankshaft pulleys arePerformance Cast Iron cylinder heads are designed to be a direct replacement for your worn or cracked heads. These are new castings, modeled off OE castings for factory fit and finish. Some applications feature a thicker deck to solve common warping or cracking issues. Instead of spending the time and money refurbishing your existing heads, use Speedmaster cast iron cylinder heads.
