Purchaser to receive: One balanced and blue printed 415 cubic LSX long block engine built for NITROUS or BOOST. This engine ships to the same level of completeness as the example photo shows:Upgraded to 6-bolt heads, severe duty 2618 allow piston with thicker ring lands and crown, upgraded wrist pin, heavy beam power addered rod, Stainless chromium nitride power adder top ring, ARP/GMPP head stud kit. ARP main stud kit.  Inconel exhuast valves optional for upgrade charge. . SPECS: GM LSX 4.065 Blueprinted LSX Block with billet main caps (.385 thick cylinder wall for extreme boost or nitrous) Molnar 4.000 Stroke 4340 forged crankshaft 58x reluctor or 24x reluctor Forged Pistons (Choose Compression Ratio) Molnar Billet 4340 H-Beam Connecting Rods American Finish Machined w/ Upgraded ARP 2000 7/16 Capscrew Bolt King XP Coated Tri-Metal Narrowed Racing Rod & Main Bearings, MLS Head Gaskets (MLX head gaskets available for upcharge for boost levels over 20psi, Custom Grind Cam, tie bar high RPM Johnson race lifters, thick wall push rods, Caged rocker Arms 1.7 or full roller severe duty. Balanced and Blue-printed and Fully Assembled. Bare Long Block as shown in image--intake is additional. Dyno testing is additional! This engine is build to order. We will need a 3-4 weeks to balance, fit, adjust, and final assembled this engine from the time the custom pistons and other order in parts arrive to our shop!

CNC port heads flowing to 420cfm available for an upgrade charge. Gapless top ring and other upgrades available. ATI SFI balancer available for an upcharge.