ATK Engines SP53 Chevy 383 Stroker Short Block

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

Highlights

• 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

Specifications

• Engine Displacement: 383 cu. in.
• Piston Material: Forged Aluminum
• Crankshaft Material: Forged Steel
• Intake Manifold Included: No
• Assembled: Yes
• Oil Pan Included: No
• Water Pump Included: No
• Harmonic Balancer Included: No
• Flexplate Included: No
• Flywheel Included: No
• Material Type: Cast