High Performance Short Block Small Block Chevy 350ci

Name: High Performance Short Block Small Block Chevy 350ci
Brand: ATK ENGINES
SKU: 059-SP04
Price: 1519.00 USD
Availability: InStock

^$1,519⁰⁰

Core Charge: ^$310⁰⁰

Truck Freight

Ships on 11/10/2026

Lowest Price Guarantee

Small Block Chevy

High Performance Short Block

Small Block Chevy 350ci

4 Bolt Mains, 1-Piece Rear Main Seal

Cast Crankshaft

Powder Metal Rods 5.7" Length

Hypereutectic Flat Top Pistons -6.4cc

Core Details

NOTE:

Core return can be any Small Block Chevy 350ci engine, except 1992-1997 LT1 style engines

This engine makes a great foundation for a mild performance build or a good upgrade for a worn out short block.

Block Information:

Seasoned OE 4 bolt main 1pc seal 1996-2000 roller block, passenger side dipstick
Bore/Stroke: 4.040" x 3.480"
Displacement: 350ci
Camshaft Bearings: Dura-Bond, installed and clocked to OEM position
Freeze Plugs: Brass, installed and sealed
Oil Galley Plugs: Installed and sealed

Rotating Assembly:

Crankshaft: OE cast crank
Balance: External rear (flexplate/flywheel), internal front (haromonic balancer)
Rods: OE powder metal 5.7"
Compression Ratio: 64cc= 9.9:1 / 72cc= 9.1:1 / 75cc= 8.8:1
Pistons: Hypereutectic -6.4cc flat top
Rings: Plasmamoly

Recommended Components:

Balancer: Internal balance
Flexplate/Flywheel: External balance (1987-Up 1 piece rear main)
Head Gasket: .038" thickness or per application
Oil: 10W30 Non synthetic for first 3000 miles
Oil Filter: Wix or K&N per application

Please CLICK HERE for ATK Warranty

Short Blocks for Street or Strip

ATK Engines High-Performance Short Blocks provide the foundation for your next engine build for Gen I Small Block Chevys, Big Block Chevys, and Gen III/IV LS. These short blocks support mild to extreme horsepower in naturally aspirated or boosted applications.

Part TypeEngine Short Block

Product LineATK Engines Small, Big Block Chevy & LS Short Blocks

BrandATK ENGINES

Package Height24.0

Package Width27.0

Package Length31.0

Weight370.0 PG

Part CategoryPerformance Parts

QuantitySold individually

Vendor Part NumberSP04

Package Qty1

Package TypeEA