Crate Engine, BluePrint 598ci ProSeries Stroker, Long Block

598ci Pro Series Stroker Long Block by BluePrint Engines®

741-hp / 703 lb-ft core uses forged 4.50-inch crank and forged pistons by BluePrint Engines®.

BluePrint Engines®' 598ci Pro Series Stroker Long Block is rated at 741 hp and 703 lb-ft with 10.5:1 compression. It combines forged 4.50-inch-stroke crankshaft, forged pistons, aluminum cylinder heads and hydraulic-roller camshaft (.647/.647 lift; 258/266° @ .050). Long-block configuration combines a forged 4.50-inch stroker assembly and 741-hp core while leaving induction/front drive separate.

Additional Technical Specifications • Standard Deck Height! Bolt 724hp in place of your Chevy 454 or 396 BBC! • HP & Torque: 741 HP / 703 FT LBS • Compression Ratio: 10.5:1 • Hydraulic Roller Cam Block: • NEW BluePrint Cast Iron Block • Manufactured and Machined in the USA! • 4-Bolt Main • 4.600" Bore • 1-Piece Rear Main Seal • Mech fuel pump provision: Yes • Standard Deck Rotating Assembly: • 4.500" Stroke • Forged H-beam 6.480" connecting rods • Internal Cylinder Heads: • 119cc chamber • 2.30" intake/1.88" exhaust valves • 358cc intake/125cc exhaust runners • Cylinder heads feature a .300 in. raised exhaust port vs an OEM casting. • Must verify header/exhaust clearance Cam Specs: • .647 Intake .647 Exhaust • 258 Intake / 266 Exhaust duration • @ .050 - 112-degree lobe separation Ignition Timing: • 34° total timing Also Includes: • Valve covers, oil pan and timing cover • Harmonic balancer Notes: • Cylinder heads feature a .300 in. raised exhaust port vs an OEM casting • BluePrint Engines 598ci crate engine uses a standard deck height block. So if you are looking for large cubic inches and replacing an old 396ci BBC, or 454 BBC this engine will bolt right in. Talk about an upgrade!