Product Summary

Short Block Crate Engine Type, Internal Engine Balance

  • The BluePrint Engines SBC 427 cubic-inch short block is built to deliver big cubic-inch power in a compact small block package.
  • Featuring the new BluePrint 1-piece rear main seal block with 4-bolt splayed mains, this short block provides a strong and reliable foundation for high-performance street or race builds.
  • The rotating assembly includes all forged components and is internally balanced for smooth operation and durability under demanding conditions.
  • Designed for use with a passenger side dipstick and roller camshaft setups, this 427 small block short block is a great choice for builders looking for serious small block power with modern block strength and reliability.
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Key Specs

Crate Engine TypeShort Block
Engine Displacement427 cu. in.
Camshaft TypeHydraulic Roller
Piston MaterialForged Aluminum
Crankshaft MaterialForged Steel
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Need To Know

Made to Order

This custom item will ship when completed

Truck Shipment

Truck shipments must be pre-paid with a credit card, certified check or money order

Quick and Easy Returns

Return Policy

BluePrint Engines PS4272 Details

The SBC New 427 Small Block Chevy Short Block is built to deliver big cubic inch power in a compact small block package. Featuring the new BPE 1-piece rear main seal block with 4-bolt splayed mains, this short block provides a strong and reliable foundation for high-performance street or race builds. The rotating assembly includes all forged components and is internally balanced for smooth operation and durability under demanding conditions. Designed for use with a passenger side dipstick and roller camshaft setups, these 427 small blocks short block is a great choice for builders looking for serious small block power with modern block strength and reliability.

  • Compression Ratio: 10.0:1 with 64cc Heads
  • BluePrint Engines Forged Crank
  • BluePrint Engines Forged Pistons

Block

  • BluePrint Engines High Strength Cast Iron Block
  • Manufactured and Machined in the USA!
  • 4-Bolt Main
  • 4.125" Bore
  • 1-Piece Rear Main Seal
  • Mech Fuel Pump Provision: Yes
  • Passenger Side Dipstick
  • Drilled and Tapped for Clutch Linkage

Rotating Assembly

  • New BluePrint Forged Crankshaft
  • 4.000" Stroke
  • Forged H-Beam 6.000" Connecting Rods
  • Forged Pistons - Dish - 20cc
  • Internally Balanced Front and Rear

Specs

  • Compression Ratio: 10:1 with 64cc Heads
  • Pistons: Forged - Dish - 20cc
  • Crankshaft: Forged Crank - 4.000" Stroke and Forged H-Beam 6.000" Rods

CARB Warning

Follow EPA, CARB, and state regulations for engine changes

Emissions warning: this part is for vehicle engine changes, not direct oem engine replacements. In California, engine changes are legal when done in compliance with California bureau of automotive repairs (bar) engine change policy. For assistance, call bar referee at: (800) 622-7733. And see https://bar.Ca.Gov/consumer/smog_check_program/engine_changes. All customers must comply with federal epa mobile source enforcement memorandum no. 1a (and addendum) and all applicable state regulations when conducting engine changes. Improper installation and/or use of this part in California may subject the installer and/or owner to a $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and laws of all states for use of this engine change part on makes or models of vehicles that render them noncompliant with applicable state and/or federal emission laws with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine

BluePrint Engines PS4272 Specifications

KEY SPECS
MFG. Part #PS4272
BrandBluePrint Engines
Crate Engine TypeShort Block
Engine Displacement427 cu. in.
Camshaft TypeHydraulic Roller
Piston MaterialForged Aluminum
Crankshaft MaterialForged Steel
Carburetor IncludedNo
Intake Manifold IncludedNo
Distributor IncludedNo
Connecting Rod MaterialForged Steel
Valve Covers IncludedNo
Engine BalanceInternal
Cylinder Heads IncludedNo
Rear Main Seal Style1-piece
Throttle Body IncludedNo
Timing Cover IncludedNo
Oil Pan IncludedNo
Water Pump IncludedNo
Harmonic Balancer IncludedNo
Flexplate IncludedNo
Flywheel IncludedNo
Air Cleaner IncludedNo
Spark Plugs IncludedNo
Spark Plug Wires IncludedNo
Computer IncludedNo
Wiring Harness IncludedNo
GENERAL
Bore x Stroke (in)4.069" x 4.125"
Warranty30-Month / 50,000 Mile Warranty
Camshaft IncludedYes
Sold in QuantityEach

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