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ATK SP15NB 377 Stroker Short Block

The ATK SP15NB is a Chevy 377 (6.2L) stroker short block with a 2-bolt main iron block, nodular iron crankshaft, forged 4340 I-beam rods and hypereutectic dish pistons. Flexplate, flywheel, balancer, oil pan and timing cover are not included.

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$2,107.38
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6.2L/377Actual Engine Displacement
YesAssembled
ATK High Performance EnginesBrand
I-beamConnecting Rod Beam Style
Trusted performanceBuilt for real conditions
Used by professionalsEquipment for demanding work
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The ATK SP15NB is a Chevy 377 (6.2L) stroker short block with a 2-bolt main iron block, nodular iron crankshaft, forged 4340 I-beam rods and hypereutectic dish pistons. Flexplate, flywheel, balancer, oil pan and timing cover are not included.

  • Actual Engine Displacement: 6.2L/377
  • Assembled: Yes
  • Brand: ATK High Performance Engines
  • Connecting Rod Beam Style: I-beam
  • Connecting Rod Material: Forged 4340 steel
ATK SP15NB 377 Stroker Short BlockDependable
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COMPLETE PRODUCT INFORMATION

Full Product Description

The ATK SP15NB is a Chevy 377 (6.2L) stroker short block with a 2-bolt main iron block, nodular iron crankshaft, forged 4340 I-beam rods and hypereutectic dish pistons. Flexplate, flywheel, balancer, oil pan and timing cover are not included.

Specifications

  • Brand: ATK High Performance Engines
  • Part / Model Number: SP15NB
  • Actual Engine Displacement: 6.2L/377
  • Assembled: Yes
  • Connecting Rod Beam Style: I-beam
  • Connecting Rod Material: Forged 4340 steel
  • Crankshaft Material: Nodular iron
  • Crate Engine Family: Chevy Small Block
  • Engine Balance: Internal/External
  • Engine Block Material: Cast iron
  • Main Bolt Style: 2-bolt
  • Main Journal Type: Chevy 350
  • Part Type: Short Block Engines
  • Piston Material: Hypereutectic aluminum
  • Product Line: ATK High Performance Chevy 377 Stroker Short Blocks

Technical Specifications

Product data
ProductATK SP15NB 377 Stroker Short Block
SKUSP15NB
Actual Engine Displacement6.2L/377
AssembledYes
BrandATK High Performance Engines
Connecting Rod Beam StyleI-beam
Connecting Rod MaterialForged 4340 steel
Crankshaft MaterialNodular iron
Crate Engine FamilyChevy Small Block
Engine BalanceInternal/External
Engine Block MaterialCast iron
Flexplate IncludedNo
Flywheel IncludedNo
Harmonic Balancer IncludedNo
Main Bolt Style2-bolt
Main Journal TypeChevy 350
Manufacturer's Part NumberSP15NB
Oil Pan IncludedNo
Part TypeShort Block Engines
Piston MaterialHypereutectic aluminum
Product LineATK High Performance Chevy 377 Stroker Short Blocks
QuantitySold individually.
Rear Main Seal Style1-piece
RemanufacturedNo
Short Block Piston StyleDish
Timing Cover IncludedNo
UPC00653517678981
Engineered for
real-world performance
SP15NB

DELIVERY & AFTER-SALES INFORMATION

Shipping & Returns

Important information for this product before and after purchase.
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NST Cargo coordination

Heavy or oversized equipment delivery is coordinated according to the product and destination address.

Delivery estimate

Timing and applicable delivery arrangements are confirmed during checkout or by Kayros Tool support.

Return assistance

Contact Kayros Tool before returning an item so eligibility, product condition, and return instructions can be confirmed.

Overview

The ATK SP15NB is a Chevy 377 (6.2L) stroker short block with a 2-bolt main iron block, nodular iron crankshaft, forged 4340 I-beam rods and hypereutectic dish pistons. Flexplate, flywheel, balancer, oil pan and timing cover are not included.

Specifications

  • Brand: ATK High Performance Engines
  • Part / Model Number: SP15NB
  • Actual Engine Displacement: 6.2L/377
  • Assembled: Yes
  • Connecting Rod Beam Style: I-beam
  • Connecting Rod Material: Forged 4340 steel
  • Crankshaft Material: Nodular iron
  • Crate Engine Family: Chevy Small Block
  • Engine Balance: Internal/External
  • Engine Block Material: Cast iron
  • Main Bolt Style: 2-bolt
  • Main Journal Type: Chevy 350
  • Part Type: Short Block Engines
  • Piston Material: Hypereutectic aluminum
  • Product Line: ATK High Performance Chevy 377 Stroker Short Blocks
Specifications

Actual Engine Displacement: 6.2L/377

Assembled: Yes

Brand: ATK High Performance Engines

Connecting Rod Beam Style: I-beam

Connecting Rod Material: Forged 4340 steel

Crankshaft Material: Nodular iron

Crate Engine Family: Chevy Small Block

Engine Balance: Internal/External

Engine Block Material: Cast iron

Flexplate Included: No

Flywheel Included: No

Harmonic Balancer Included: No

Main Bolt Style: 2-bolt

Main Journal Type: Chevy 350

Manufacturer's Part Number: SP15NB

Oil Pan Included: No

Part Type: Short Block Engines

Piston Material: Hypereutectic aluminum

Product Line: ATK High Performance Chevy 377 Stroker Short Blocks

Quantity: Sold individually.

Rear Main Seal Style: 1-piece

Remanufactured: No

Short Block Piston Style: Dish

Timing Cover Included: No

UPC: 00653517678981

Shipping & Returns

NST Cargo coordination: Heavy or oversized equipment delivery is coordinated according to the product and destination address.

Delivery estimate: Timing and applicable arrangements are confirmed during checkout or by Kayros Tool support.

Returns: Contact Kayros Tool before returning an item so eligibility, condition, and instructions can be confirmed.

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ATK SP15NB 377 Stroker Short Block$2,107.38