HP Reaper Cast CNC Shredder Cylinder Head

The new HP Reaper Cast CNC Head starts off with a Shredder base head, giving a good platform to create a cost effective powerful Cylinder Head. We then install a 32mm Intake Valve, New Seat, and Full CNC Port to create a head that flows over 108CFM. The Exhaust side is a 25mm Exhaust Valve, but is also CNC ported to allow for better flow all the way around. You'll see that not every surface is touched throughout the port, that is because the Shredder base is already good sizing in those areas, and we don't want to lose flow just to wipe a surface. A 14cc Chamber gives the HP Reaper Cast CNC Shredder the ability to run a lot or a little compression, based on your preference. Check out all the HP Reaper Cast CNC details below:

• 32mm Intake Valve
• 25mm Exhaust Valve
• Full CNC Ports (Except where flow lost to over port)
• Comp 960 Valve Springs
• Titanium Retainers w/ Locks
• Spigot Style Intake Manifold w/ Pulse Fitting Installed
• Recommended to .420" Lift Cam/Rocker Set Ups

This combination is intended to perform well on 212cc, 236cc, and 247cc combinations. However, it is very functional and performs well on our 277cc combinations if you're looking for a cost effective head or run in a cast type head class. We pair these with the Gage Manufacturing 1.2 or 1.3 Roller Rockers, sold here on our site as well, to create a high quality well running piece. Check out the flow charts as well as compression ratio charts for your specific combo.