ATK High Performance Chevy 377 Stroker Short Blocks SP53NB

Name: ATK High Performance Chevy 377 Stroker Short Blocks
Brand: ATK High Performance Engines
SKU: HPE-SP53NB
Price: 4639.99 USD
Rating: 0 (0 reviews)

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Part Number: HPE-SP53NB

$4,639.99

ATK High Performance Chevy 377 Stroker Short Blocks

Engine, New Short Block, 377 CI,Cast Iron, 4.0 Bore, 3.750 Stroke, Forged H Beam Rod, Forged Aluminum Flat Top Pistons, Internal Balanced, Chevy, Each
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ATK High Performance Chevy 377 Stroker Short Blocks SP53NB

HPE-SP53NB

Not Yet Reviewed

Part Number: HPE-SP53NB

Estimated Ship Date: Nov 19, 2026

$4,639.99

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Overview

Applications

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Estimated Ship Date: Nov 19, 2026 Would you rather pick it up?

Overview

Brand:

ATK High Performance Engines

Manufacturer's Part Number:

SP53NB

Part Type:

Short Block Engines

Product Line:

ATK High Performance Chevy 377 Stroker Short Blocks

Summit Racing Part Number:

HPE-SP53NB

UPC:

00653517679018

Crate Engine Family:

Chevy Small Block

Actual Engine Displacement:

6.2L/377

Crankshaft Material:

Forged 4340 steel

Piston Material:

Forged aluminum

Short Block Piston Style:

Flat top

Connecting Rod Material:

Forged 4340 steel

Connecting Rod Beam Style:

H-beam

Engine Block Material:

Cast iron

Engine Balance:

Internal

Oil Pan Included:

Timing Cover Included:

Harmonic Balancer Included:

Flexplate Included:

Flywheel Included:

Assembled:

Remanufactured:

Quantity:

Sold individually.

ATK High Performance Chevy 377 Stroker Short Blocks

Looking to upgrade your old engine using your existing heads? ATK high performance Chevy 377 Stroker short blocks use a 100 percent new American-made cast iron block outfitted with a Scat crank kit. All the hard work is done, you just need to finish it off. These crate engines are available with forged H-beam or I-beam connecting rods; dish top or flat top pistons; forged 4340 steel or nodular iron crankshaft; and other options.

Note: Performance short blocks are based on dyno-proven combinations built with name brand parts. Stroker engine built over size of stock stroke. Short block strapped and shipped on wooden pallet crate.

Applications