Product Summary

No Value Crate Engine Type, No Value Compression Ratio

  • Block: New GM LT1/LT4
  • Bore/Stroke: 4.065” x 4.000”
  • Displacement (cu.in): 416 CID
  • Crankshaft: Manley 4340 forged 58 tooth reluctor wheel
  • Rods: Manley 4340 forged H beam 6.125” ARP 2000 bolts
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Key Specs

Engine Displacement383 cu. in.
Camshaft TypeHydraulic Roller
Piston MaterialForged Aluminum
Crankshaft MaterialForged Steel
Carburetor IncludedNo
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Need To Know

Made to Order

This custom item will ship when completed

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ATK Engines SP35 Details

ATK High Performance Chevy 383 Stroker Race Series Short Blocks

Hardcore engines need a hardcore bottom end; that's why ATK High Performance developed these Chevy 383 Stroker Race Series short blocks. These short blocks are built around the strongest components available so that they can handle serious horsepower for your race car or hardcore street machine.

These ATK High Performance Chevy 383 Stroker Race Series short blocks include the following:

* Handpicked and seasoned 4-bolt main block
* Aligned and honed main bores
* Forged 4340 crankshaft
* 3.75 in. stroke
* Forge H-beam connecting rods
* Forged dish top pistons

CARB Warning

Follow EPA, CARB, and state regulations for engine changes

Emissions warning: this part is for vehicle engine changes, not direct oem engine replacements. In California, engine changes are legal when done in compliance with California bureau of automotive repairs (bar) engine change policy. For assistance, call bar referee at: (800) 622-7733. And see https://bar.Ca.Gov/consumer/smog_check_program/engine_changes. All customers must comply with federal epa mobile source enforcement memorandum no. 1a (and addendum) and all applicable state regulations when conducting engine changes. Improper installation and/or use of this part in California may subject the installer and/or owner to a $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and laws of all states for use of this engine change part on makes or models of vehicles that render them noncompliant with applicable state and/or federal emission laws with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine

ATK Engines SP35 Specifications

KEY SPECS
MFG. Part #SP35
BrandATK Engines
Engine Displacement383 cu. in.
Camshaft TypeHydraulic Roller
Piston MaterialForged Aluminum
Crankshaft MaterialForged Steel
Carburetor IncludedNo
Intake Manifold IncludedNo
Distributor IncludedNo
Connecting Rod MaterialForged 4340 Steel
Cylinder Heads IncludedNo
Oil Pan IncludedNo
Harmonic Balancer IncludedNo
Flexplate IncludedNo
Flywheel IncludedNo
Air Cleaner IncludedNo
Spark Plugs IncludedNo
Spark Plug Wires IncludedNo
Computer IncludedNo
Wiring Harness IncludedNo
GENERAL
AssembledYes
Material TypeCast Iron
NotesPiston has two valve reliefs. Requires weighted flexplate/flywheel and non weighted harmonic balancer. Small base circle cam may be required.
Sold in QuantityEach
Connecting Rod Beam StyleH-Beam
Piston StyleFlat Top

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