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They feature extra-thick steel that's double-welded to the ring gear for added strength and anodized for corrosion resistance
capable of withstanding valve spring load up to 600lbs
Replacement Spring Isolator for PC12004 A-Arms
Speedmaster H-beam connecting rods are one of the strongest connecting rods available
Speedmaster pulley systems work with any type of cylinder head or manifold configuration
Chevy SBC 400 STD Main Bearings They feature extra-thick steel that'sThese Speedmaster main bearings are just what you need to freshen up your engine. Why? They use silicon aluminum bi metal construction. Silicon aluminum is the choice for many of today's engine manufacturers because of its high fatigue strength and superior temperature threshold. Bearing wear is dramatically reduced and the fatigue strength is greatly improved.
US$ 31.95
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US$ 63.50
