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Speedmaster black-oxide coated chromoly intake manifold bolts are rated at 170
while increasing your engine performance
They are made from stamped steel and feature a chrome plated finish for good looks and durability
most notably the cylinder heads
These flex joints can take consistent punishment
Chevy GM LS1 LS2 LS3 LS6 LS7 L92 LSX Manual Flywheel Bolt Kit (12Pt) Speedmaster black-oxide coated chromoly intakeThese High Performance series flywheel bolts from Speedmaster are far superior to OEM hardware. These bolts are forged from aerospace alloy and heat treated prior to thread rolling and machining. They feature an exclusive, flat, 12 point head design and a larger than stock shank diameter, for increased strength and improved register.
