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while the extruded body has a tensile strength over 60
then highly polished and chrome plated for lasting beauty
Speedmaster valve locks are designed for stock or performance engines using 7 degree valve locks
They feature extra-thick steel that's double-welded to the ring gear for added strength
They provide higher power and torque transmission
Chevy SBC 350 1.50 7/16" Self Aligning Stainless Steel Roller Rocker Arm Set while the extruded body hasSpeedmaster 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.
