Best Quality Replacement Engine For Your Chevrolet Approximate Horsepower: 800 3-Year Best In The Business Unlimited Mileage Manufacturer's Warranty The ultimate in street-driven performance. This 565 cu.in. Chevrolet big block is built from a brand new iron World Products high-performance engine block, which is cast in the USA. A pair of American-made Pro-Filer aluminum race cylinder heads and matched Single-plane intake make up the top end. This engine uses a custom ground roller camshaft, fully adjustable billet timing components, Clevite hardened performance race engine bearings, and custom forged pistons. Big Block All-Out Street Performer 565 Includes: World Products Iron Sportsman Block (USA Casting) 4340 Forged Crankshaft 4340 Forged H-Beam Rods SRP Forged 33cc Dome Pistons Low Tension File Fit Rings Clevite Hardened Performance Rod/Main Bearings Melling Select Oil Pump Billet Adjustable Timing Set Custom-Ground Roller Camshaft & Lifters SS Series Harmonic Balancer Pro-Filer 320cc Sniper Aluminum Heads Pro-Filer Sniper Matched Intake Competition Series 2.300 Intake Valves Competition Series 1.880 Exhaust Valves Billet Anodized Aluminum Roller Rockers ARP Head Studs T&D Shaft Mount Roller Rockers Titanium 10 Degree Retainers Fabricated Aluminum Valve Covers Milodon Wet Sump Oil Pan and Pickup Cometic Intake Manifold Gaskets