LME IRON LTX 454" 800+HP NA (LT1/LT4)

Our 454" Shortblock is a proven combination to get more cubic inches and power for your ride. This block will go into any C7, or 6th Gen Camaro! Trucks? Of course! Any 5.3 or L86 can be pulled out and replaced with this stout unit! This engine is set up as a naturally aspirated combo. Diamond custom dome pistons make this thing a high compression beast! Guaranteed to make 800HP+ with appropriate camshaft and heads! Displacement: 454" Bore: 4.185" Proven Power Rating: 800HP Stroke: 4.125" Compression Ratio: 15:1 Rod Length 6.125" Cylinder Head Compatibility: LT1, LT4 Oil System Type: Wet or Dry Block: GM LT4 6.6L Iron Crankshaft: Callies Magnum 8 Counterweight w/ LME Blueprinting Process Connecting Rods: Callies Compstar XD (1600HP Rated)w/ARP Bolts Pistons: LME/Diamond 2K Custom Forged w/Gas Ports (.300" material above top ring land) Wrist Pins: Trend H-13 Tool Steel Heavy Wall .250" Ring Pack: Total Seal 1.5mm AP Stainless Top (for high heat applications) .043" Ductil Napier Second, 3mm Oil Bearings: Clevite H-Series Main & Rods Main Studs: ARP LME Standard Shortblock Blueprinting Process: Block is fully deburred & inspected for flaws Cylinders diamond honed with torque plates for optimal clearance per application Crankshaft journals indexed & trued to exact tolerance Optimal cylinder geometry achieved with diamond hone and surface finish verified with profilometer Chamfered oil holes for improved oiling to bearings Cylinders machined for rod clearance per application Crankshaft journals polished to 2 Ra or better surface finish Block and components meticulously deburred & cleaned after machining process Crankshaft balanced within ¼ oz-in tolerance All five main bearings & all eight rod bearing clearances measured and adjusted for application Connecting rod housing bores checked & adjusted for optimal roundness & size Ring are precision file fit per application Piston pin bores measured & adjusted for application Cam bearings installed and test cam fitted to ensure smooth rotation Block aline honed and set to low of spec for maximun bearing crush All oil galley plugs and dowel pins installed Deck surfaces machined perpendicular to mains & deck height set for optimal quench Meticulous final assembly of shortblock Cylinders bored (when applicable) on 4 axis CNC perpendicular to mains giving you a true 90o V8 All tolerances, clearances, machining specs, and part numbers are recorded and documented in build sheet