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Instruction Sheets for Part Number HPE-SP15NB
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ATK High Performance Chevy 377 Stroker Short Blocks
CHEVY 377 STROKER SHORT BLOCK
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Estimated Ship Date: Nov 10, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SP15NB
Part Type:
Product Line:
Summit Racing Part Number:
HPE-SP15NB
UPC:
00653517678981
Crate Engine Family:
Chevy Small Block
Actual Engine Displacement:
6.2L/377
Rear Main Seal Style:
1-piece
Crankshaft Material:
Nodular iron
Piston Material:
Hypereutectic aluminum
Short Block Piston Style:
Dish
Connecting Rod Material:
Forged 4340 steel
Connecting Rod Beam Style:
I-beam
Engine Block Material:
Cast iron
Main Bolt Style:
2-bolt
Main Journal Type:
Chevy 350
Engine Balance:
Internal/External
Oil Pan Included:
No
Timing Cover Included:
No
Harmonic Balancer Included:
No
Flexplate Included:
No
Flywheel Included:
No
Assembled:
Yes
Remanufactured:
No
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.
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Some parts are not legal for use in California or other states with similar laws / regulations
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