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They are an economical solution to replacing failure-prone stock supports
Couple this Hi-Ram intake with the high flowing LS3 style cylinder heads has outstanding potential for naturally aspirated and forced induction applications
Their strong die-cast aluminum design ensures an excellent gasket seal and dissipates heat better than many other covers
flush-machined set screws for proper contact on the studs
while increasing thermal conductivity
7/16" Polylock Rocker Arm Nut Set (Suits: BBC 454 Stud Girdle) They are an economical solutionSpeedmaster rocker arm adjusting nuts are high quality polylocks designed for full roller rocker arms. Made from heat treated, premium grade 4140 chromoly steel, these adjusters provide 190,000 psi tensile strength for the utmost in reliability. Precision CNC machined threads to ensure optimum seat pressure, flush machined set screws for proper contact on the studs, and, best of all, they don't require any special tools for installation. They're
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