555ci Big Block Chevy Long Block, Hydraulic Roller NA, Street

This high quality, 555 cubic inch Big Block could be a big upgrade to your ride. This long block can either replace what you now have or be the foundation for a new custom build. We keep these long blocks in stock so it can be yours now. These long blocks feature a Dart block and Dart cylinders heads that we machine on our 5-axis CNC from porter castings.  The head finish machining processes includes a CNC valve with bowl blending. The rotating assembly consistes of a Callies’ crank and rod set topped with J&E pistons.  The heads are assembled with Inconel exhaust and stainless-steel intake valves, a Manley spring kit and Scorpion rockers.   The hydraulic roller design is intended for naturally aspirated applications running premium pump gas. Our multi-port fuel injection builds put out nearly 860 horsepower and over 750 lb-ft torque.     We are an award-winning, all-CNC shop known world-wide for our quality. Give us a call. You’ll be glad you did.  You can also check out the mac