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#35020178
ATK Engines SP53 Chevy 383 Stroker Short Block
- Block: Dart Big M Sportsman 4 bolt main 2pc rear main seal
- Bore/Stroke: 4.600” x 4.750”
- Displacement: 6.3 L
$3,980.99
/each
Factory Shipped
Quantity
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Product Summary
Short Block Crate Engine Type, 9.025" Deck Height
- Block: Dart Big M Sportsman 4 bolt main 2pc rear main seal
- Bore/Stroke: 4.600” x 4.750”
- Displacement: 6.3 L
- Crankshaft: Scat 4340 forged internally balanced
- Rods: Scat 4340 forged H beam with ARP 8740 bolts
Key Specs
| Crate Engine Type | Short Block |
| Engine Displacement | 6.3 liters |
| Camshaft Type | Hydraulic Roller |
| Piston Material | Forged Aluminum |
| Crankshaft Material | Forged 4340 Steel |
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ATK Engines SP53 Details
ATK High Performance Chevy 383 Stroker Short Blocks
Your engine needs a rock-solid foundation to make the horsepower you crave; that's where these ATK High Performance Chevy 383 Stroker short blocks come in. With these blocks, all of the hard work has been done for you. Everything comes machined, clearanced, balanced, and blueprinted, so you have a bulletproof bottom-end that is ready to run. Just decide how mild or wild you want to go.
These ATK High Performance Chevy 383 Stroker short blocks include the following:
* Handpicked and seasoned 4-bolt main block
* Aligned and honed main bores
* Nodular iron crankshaft
* 3.75 in. stroke
* I-beam connecting rods
* Hypereutectic dish top pistons
CARB Warning
Follow EPA, CARB, and state regulations for engine changes
CARB Warning
Follow EPA, CARB, and state regulations for engine changes
ATK Engines SP53 Specifications
ATK Engines SP53 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | SP53 |
| Brand | ATK Engines |
| Crate Engine Type | Short Block |
| Engine Displacement | 6.3 liters |
| Camshaft Type | Hydraulic Roller |
| Piston Material | Forged Aluminum |
| Crankshaft Material | Forged 4340 Steel |
| Carburetor Included | No |
| Intake Manifold Included | No |
| Distributor Included | No |
| Connecting Rod Material | Forged 4340 Steel |
| Valve Covers Included | No |
| Engine Balance | Internal/External |
| Cylinder Heads Included | No |
| Rear Main Seal Style | 1-piece |
| Throttle Body Included | No |
| Oil Pan Included | No |
| Timing Cover Included | No |
| Water Pump Included | No |
| Harmonic Balancer Included | No |
| Flexplate Included | No |
| Flywheel Included | No |
| Air Cleaner Included | No |
| Spark Plugs Included | No |
| Spark Plug Wires Included | No |
| Computer Included | No |
| Wiring Harness Included | No |
| GENERAL | |
| Assembled | Yes |
| Material Type | Cast Iron |
| Notes | GM 1986-2000 small block with 4.040 in. bore and 3.750 in. stroke, +5cc flat top pistons, Scat forged 5.700 in. connecting rods, ARP 8740 rod bolts, and moly rings. |
| Sold in Quantity | Each |
| Connecting Rod Beam Style | H-Beam |
| Deck Height | 9.025" |
| Main Bolt Style | 4-Bolt |
| Piston Style | Flat Top |
| Main Journal Type | Chevy 350 |
