SHV 252/252 R104 (Late)


1978-84 engines • hydraulic • hot street cam for small strokers • 74-80 inch engines • good power to6000 rpm • likes carb, pipes and increased compression • valve springs required

Most cam designers concentrate on getting the most power in a particular RPM range and disregard valve train clatter and power band width. The designers at VThunder® pay particular attention to ramp design to keep our cams as quiet as possible and lobe design to maintain as wide a power band as possible. VThunder® cams are made from 6150 aircraft quality steel for ultimate durability and resistance to premature cam failure from metalfatigue. We heat treat our cams to provide a case depth that allows for long term use under extreme loads. With the aid of computer controlled machining centers, VThunder® cams are held to extremely precise tolerances.

Gross Valve Lift Lobe Lift Duration @.053 Valve Timing Open/Close Lobe Center Line Lobe Separation Base Circle Radius Tappet Lift @TDC Valve Lift @TDC
IN. EX. IN. EX. IN. EX. IN. EX. IN. EX.     IN. EX. IN. EX.
.485 .485 .340 .340 252 252 22/50 50/22 104 104 104 .470" .120" .120" .171" .171"