Crate Engine, BluePrint 540ci ProSeries Stroker, Long Block

540ci Pro Series Stroker Long Block by BluePrint Engines®

670-hp / 660 lb-ft core uses forged 4.25-inch crank and forged pistons by BluePrint Engines®.

BluePrint Engines®' 540ci Pro Series Stroker Long Block is rated at 670 hp and 660 lb-ft with 10.1:1 compression. It combines forged 4.25-inch-stroke crankshaft, forged pistons, 119cc aluminum heads and hydraulic-roller camshaft (.647/.647 lift; 248/254° @ .050). Long-block configuration retains the forged 4.25-inch rotating assembly and 670-hp core while leaving induction/front drive separate.

Additional Technical Specifications • HP & Torque: 670 HP / 660 FT LBS • Compression Ratio: 10.0:1 • Hydraulic Roller Cam Block: • NEW BluePrint Cast Iron Block • Manufactured and Machined in the USA! • 4-Bolt Main • 4.500" Bore • 1-Piece Rear Main Seal • Mech fuel pump provision: Yes • Standard Deck Rotating Assembly: • 4.250" Stroke • Forged H-beam 6.385" connecting rods • Internal Cylinder Heads: • BluePrint Aluminum Cylinder Heads • 119cc chamber • 2.30" intake/1.88" exhaust valves • 316cc intake/124cc exhaust runners • Cylinder heads feature a .300 in. raised exhaust port vs an OEM casting. • Must verify header/exhaust clearance Cam Specs: • Cam Type: Roller • .647 Intake .647 Exhaust • 248 Intake / 254 Exhaust duration • @ .050 - 112-degree lobe separation Also Includes: • Valve covers, oil pan and timing cover • Harmonic balancer Notes: • New BluePrint block manufactured and machined in the USA. • Not for EGR • Cylinder heads feature a .300 in. raised exhaust port vs an OEM casting