BluePrint Motorsports GM LS Compatible 427 c.i. Pro-Series Engine - Power Adder - Short Block

**BluePrint Motorsports engines are built for maximum performance and are intended for extreme duty race applications. If this engine is used in a street application our normal 30 month, 50,000-mile warranty applies, if used in sanctioned racing no warranty, expressed, or implied. Overview: The new BPE LS Iron Block 427 Stroker Short Block is built as a strong foundation for high-horsepower power adder applications. Featuring a durable iron LS block and a fully forged rotating assembly, this short block is designed to handle supercharged, turbocharged, or nitrous combinations with confidence. It includes forged pistons with a 4.070 bore, forged H-beam rods, and an 8-weight forged crankshaft with a 58x reluctor ring, all internally balanced for smooth and reliable performance. Finished with a 6-bolt crank flange for added strength, this 427 LS short block is an excellent choice for serious street or race builds looking for durability and big power capability. Description: Compression Ratio: 9.5:1 with 70cc Heads BluePrint Engines Forged Crankshaft Mahle 2618 Custom Forged Pistons Block: BluePrint Engines High Strength Cast Iron (LSX Style) Block Increased Deck Thickness and Strength Webbing Utilizes OEM LS3 Front and Rear Covers Improved Water Jacket Design Extended Cylinder Skirt 1-piece Rear Main Seal Priority Main Oiling 4.0695" Bore 6-bolt studded mains Billet Main Caps Rotating Assembly: Forged 8cwt Crankshaft 4.125" Stroke Forged H-Beam 6.125" Connecting Rods Mahle Custom 2618 Forged Pistons - Dish - 22cc Internally Balanced Front and Rear Notes: BluePrint Motorsports engines are built for maximum performance and are intended for extreme duty applications. Because of the high-stress nature of their use, these engines are sold without any warranty, expressed, or implied.