LS1 Crate Engine

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Chevy 427 CI Stroker LS1 Cast Iron 625HP 570FT/LBS TQ Long Block Naturally Aspirated Block New LSX Cast Iron Block (requires LSX lifter valley plate) One piece rear main seal 4 bolt main ARP Main Studs   Cylinder Heads 72cc CNC Ported Stage III Heads Titanium Retainers Bronze Guides Dual Valve Springs Hardened Locks Ferrera Stainless Valves 2.08/ 1.60 3 angle competition valve job ARP Head Studs Cometic Head Gaskets   Valve Train Comp Custom Hydraulic Roller Cam High Performance Hydraulic Roller Lifters. Performance Roller Timing Chain Scorpion Aluminum Roller Rocker Arms   Rotating Assembly Manley Forged Coated Pistons 10.6:1 CR Forged Full Floating H beam Rods w ARP 2000 bolts 4340 Forged Stroker Crankshaft Internally Balanced rotating assembly   (No core return required) Crate Engine Cost: $12,999

Promar Reserves the right to change manufacturers and specs without notice. HP and TQ ratings are based on actual results on a engine dyno with open headers in controlled environment tuned for maximum performance.