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Customize TSP 427 CID 4.00" Stroke Sleeved Gen 5 LT2 Stroker Short-Block

Engine Crate for Short-Block Engine Assembly (TSP-SDCrateSB) + $150.00
Texas Speed & Performance LT1 Engine Stand with 3/8" Drilled Holes (TSP-CradleLT1) + $55.99
Royal Purple 10w30 Break In Oil (RYP-11487) + $199.84

TSP 427 CID 4.00" Stroke Sleeved Gen 5 LT2 Stroker Short-Block

TEXAS SPEED & PERFORMANCE Texas Speed & Performance
SKU #TSP-427SB-RESL-LT2
TSP 427 CID 4.00" Stroke Sleeved Gen 5 LT2 Short-Block The TSP 427 CID 4.00" Stroke Sleeved Gen 5 LT2 Short-Block is a fully custom-built foundation for serious Gen V LT performance builds. Featuring a sleeved LT2 block with a 4.125” bore and 4.00” stroke, this 427 cubic inch combination delivers increased displacement, improved torque output, and the strength required for high-compression or boost applications.
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Kit Components Configured

TSP 427 CID 4.00" Stroke Sleeved Gen 5 LT2 Stroker Short-Block

Summary
SKU TSP-427SB-RESL-LT2
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TSP 427 CID 4.00" Stroke Sleeved Gen 5 LT2 Short-Block

The TSP 427 CID 4.00" Stroke Sleeved Gen 5 LT2 Short-Block is a fully custom-built foundation for serious Gen V LT performance builds. Featuring a sleeved LT2 block with a 4.125” bore and 4.00” stroke, this 427 cubic inch combination delivers increased displacement, improved torque output, and the strength required for high-compression or boost applications.

Each short-block is precision machined, balanced, blueprinted, and assembled in-house to meet the demands of high horsepower street, strip, and forced-induction combinations.

Key Specifications:

  • Engine Platform: Gen 5 LT2
  • Displacement: 427 CID
  • Bore: 4.125"
  • Stroke: 4.00"
  • Fully Sleeved Block

Connecting Rod Options:

  • TSP 6.125" H-Beam w/ ARP L19 Bolts, .927" Pin
  • Callies Compstar 6.125" H-Beam w/ ARP 2000 Bolts, .927" Pin
  • Callies Compstar Extreme H-Beam w/ ARP 2000 Bolts
  • TSP 6.125" Super I-Beam w/ ARP L19 Bolts, .927" Pin
  • Wiseco Boostline 3-Pocket Connecting Rod Set
  • TSP 6.125" Billet I-Beam w/ ARP L19 Bolts
  • Callies 6.125" Ultra H-Beam w/ ARP 2000 Bolts, .927" Pin
  • Callies Ultra Enforcer I-Beam Connecting Rod
  • Callies Ultra Enforcer I-Beam Connecting Rod 3.5 Multi-Phase Bolt

Piston Options (4.125" Bore):

  • Wiseco 4.125" -6.9cc Flat-Top
  • Wiseco 4.125" -10cc Dish
  • Wiseco 4.125" -15cc Dish
  • Wiseco 4.125" -20cc Dish
  • CP 4.125" -12cc
  • CP 4.125" -23cc
  • Mahle 4.125" -6.1cc Flat-Top
  • Diamond Racing LT2K 2000HP Piston Set: LT1/LT4 Gen V 4.125" Bore, 4.000" Stroke, 6.125" Rod, -12cc, 1.115" CH

With multiple rod and piston combinations available, this 427 LT2 short-block can be tailored for naturally aspirated high-compression builds or high-boost forced-induction applications. The sleeved block design increases cylinder strength and stability, making it ideal for elevated cylinder pressures and aggressive power levels.

Note: All short-blocks are custom built to order. Final compression ratio will vary based on piston selection and cylinder head chamber size.

*NOTE: Oil Pan Modification or Aftermarket Oil Pan is Required*

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