GM Vortec 350 Valve Spring Beehive Conversion Kit .560 lift SBC

Description

Drop in(this means no machining...) beehive spring kit for GM Vortec heads 906/062, MAY FIT OTHER SBC HEADS, .560 lift max(depending on seal thickness, most sets I check have .520-550 clearance, springs are good to .560 , but you need to check seal to retainer clearance !), good for flat tappet cams or mild hyd rollers.
spring specs are 100# @1.800 265# @ 1.24.  Pac racings retainers,Powell beehive springs and Pioneer hardened locks.