carbs access fuel pumps gaskets install items manifolds efi heads cams access ... exhaust suspension shocks qwikdata index ls1/ls2 348/409 chevy cylinder heads ... and later gen iii iv ls series engines including 4.8l 5.3l 5.7l and 6.0l · dyno tests ... are capable of 457 hp and 438 ft/lbs of torque within 5 hp of competitor s fully cnc- ... chambers with port matched and blended intake/exhaust ports · 212cc intake ports flow ... heads for gen iii engines chamber size intake port size valve sizes in/ex bare single ... 65cc 212cc 2.02 1.57 n/a 61949 212cc intake ports flow 275 cfm conical progressive ... assembled with high-quality components including springs retainers stainless steel ... on convenience · cnc port matched 220cc intake and 90cc exhaust ports for optimum flow ...
index qwikdata shocks suspension exhaust ... cams access heads efi manifolds install items gaskets fuel pumps carbs access ... competition performer rpm olds 188cc intake ports · designed for high-performance ... more efficient burn outstanding hp and torque · valvetrain has been upgraded from the ... pedestal-mount system to an arp 7/16 screw-in stud and 3/8 pushrod-slot guideplate ... for increased valvetrain stability · #60517 is not ... w-30 performer rpm olds chamber size intake port size valve sizes in/ex bare single ... be easily modified for 1/2 bolts or studs by drilling the 1/2 counterbore ... aftermarket 7/16 stud rocker arms and 3/8 hardened pushrods ... required see pages 168-169 for specs match with edelbrock head gasket sets ... and performer rpm pontiac 215cc intake ports · designed for outstanding ...