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heat-treated to a maximum strength of 190
Speedmaster rocker arm adjusting nuts are high-quality polylocks designed for full roller rocker arms
Whether you're overhauling an engine or looking to upgrade your vehicle's performance
flexibility
These Speedmaster aluminum water pump pulleys are made from a 356 aluminum alloy that is heat-treated to T-6 specs
Chevy SBC 350 1.5 Ratio 7/16" Stainless Steel Roller Rocker Arm Set heat-treated to a maximum strengthSpeedmaster Stainless steel rollers are manufactured from heat treated stainless steel and alloy steel tip rollers. Speedmaster roller rockers are available in various ratios, so you are good to go. They feature greater strength and durability, capable of withstanding valve spring load up to 600lbs.
