Seller notes

COMP Cams - 54-473-11 LSR Rectangular Port 247/263 Hydraulic Roller Cam for GM LS GEN III/IV 400+c.i., high RPM applications with major modifications and rectangular port cylinder heads. Camshaft Series:LSR Rectangular Port Large Displacement Cam Type:Hydraulic Roller Grind Number:297LRR HR14 Basic Operating RPM Range:2,400-7,000 Intake Duration at .050 Inch Lift:247 Exhaust Duration at .050 inch Lift:263 Advertised Intake Duration:297 Advertised Exhaust Duration:313 Lobe Separation:114 Intake V...

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