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BluePrint Engines ProSeries LS 427 C.I. Short Block
Item U68132-XT
New
Our Price
$7,499.00
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$374.95 Available in XT Cash Rewards.
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Product Information
Features, Description, Q&A
Features
- Compression Ratio 9.5:1 (based on 70cc chamber volume)
- Mahle 2618 Custom Forged Pistons with 22cc Dish
- Forged 8 Counterweight Crankshaft, 4.125-inch Stroke
- Forged H-Beam 6.125-inch Connecting Rods
- Requires Race Fuel of 100+ Octane
- 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
- One-Piece Rear Main Seal
- Priority Main Oiling
- 4.0695-inch Bore
- 6 Bolt Studded Mains
- Billet Main Caps
- Internally Balanced Front and Rear
- Fits High Horsepower Power Adder Applications Including Supercharged, Turbocharged, or Nitrous Combinations
Description
Performance Short Block. The BluePrint Engines ProSeries LS 427 C.I. Short Block provides a strong and reliable foundation for extreme horsepower power adder setups. Ideal for race or street builds, it supports supercharged, turbocharged, or nitrous configurations designed to withstand high stress and deliver dependable performance.
Construction Details. Built on a high-strength cast iron LSX-style block with increased deck thickness and reinforced strength webbing, this short block uses OEM LS3 front and rear covers and features a one-piece rear main seal for enhanced durability. The forged rotating assembly includes Mahle custom 2618 forged pistons with a 22cc dish, forged H-beam connecting rods, and an 8 counterweight forged crankshaft, delivering a balanced and robust bottom end for demanding applications.
Installation. This short block is designed for integration within LS-compatible race or high-performance engine builds. Professional installation is recommended.
Warranty. This engine is intended for extreme-duty applications and is sold without warranty, as it is designed for race use where no express or implied warranty applies.
Application. Specifically engineered for high-horsepower forced induction or power adder setups, this short block excels in supercharged, turbocharged, or nitrous-enhanced LS engine builds requiring maximum strength and durability.
BluePrint Engines BPMS4271SBLS
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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