370ci LS Shortblock for Boost with Callies 8 CWT Crank Piston:Flat Top The COMP mechanical cam is

The COMP mechanical cam is custom designed for this specific engine and makes full use of the Jesel Pro Aluminum shaft rockers

We are not fans of the excessive lightening we see on other billet blocks

Dailey's Engineering 6-stage dry sump

The block is paired with a Callies Ultra billet 4

370ci LS Shortblock for Boost with Callies 8 CWT Crank Piston:Flat Top The COMP mechanical cam isThis short block is intended for light boost to about 1,100 crank horsepower. The Callies Compstar center counterweighted crank with stock stroke brings a lot to the party. Having 8 instead of 6 counterweights increases stiffness by 25%. Harmonics are reduced because each cylinder has its own two counterweights. These two factors combine to minimize crank flexing thereby protecting the block, bearings and rods from excessive wear and fatigue. We have