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#35020150

ATK HP33 Chevy 383 Vortec Stroker Base Engine 390HP

Oil: Conventional / Non Synthetic 10W30
Oil Filter: Wix or K&N
Timing: Set to factory specifications via PCM module

Level Of Dress:

#1 Base Engine

$5,009.00

/each

Factory Shipped

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Product Summary

No Value Crate Engine Type, 9.5:1 Compression Ratio

Oil: Conventional / Non Synthetic 10W30
Oil Filter: Wix or K&N
Timing: Set to factory specifications via PCM module

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Key Specs

Compression Ratio	9.5:1
Engine Displacement	383 cu. in.
Camshaft Type	Hydraulic Roller
Cylinder Head Material	Cast Iron
Piston Material	Hypereutectic Aluminum

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Need To Know

Made to Order

This custom item will ship when completed

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ATK Engines HP33 Details

Engine Specifications:

HP: 390

TQ: 460

Block: OE roller block 4 bolt main 1pc seal 1996-2000

Bore/Stroke: 4.040” x 3.750”

Displacement: 383CI

Crankshaft: Scat Nodular Iron external balance rear of crank/internal balance front of the crank

Rods: Scat I Beam 5.7” Rods with ARP 8740 Bolts

Pistons: Hypereutectic 9.5:1 compression

Rings: Moly

Camshaft: Hyd. roller

Cam Specs: 220/224 @50 .495in/.502ex 110LSA

Timing Chain: Double roller

Cylinder Heads: Dart vortec cast iron 67cc/165cc 2.02/1.60

Rocker Arms: Stamped steel 1.5 ratio

Oil Pan: Rear sump 5qt (not for Chevelles with steering behind crossmember, some corvettes and 62-67 chevy II’s)

Oil Pump: Melling STD volume

Flexplate/Flywheel: Externally balanced – Pioneer #FRA-159 (with scat kit)

Recommended Components:

Balancer: Internally balanced – PowerBond #PB1046-N

Intake Manifold: Edelbrock performer RPM dual plane #7116

Distributor: HEI (Iron Gear)

Water Pump: OE long pump

Carburetor: Quick Fuel 680CFM Vacuum secondary’s electric choke #HR-680

Fuel Pump: Holley mechanical 110GPH #12-327-11

Spark Plugs: Autolite #605

Spark Plug Wires: 8mm

Engine Info:

Oil: Conventional / Non Synthetic 10W30

Oil Filter: Wix or K and N

Timing: 34-36 Degrees

Spark Plug Gap: .035”

Firing Order: 18436572

Octane: 91+

Stall Converter: Stock

Exhaust: 1 5/8 Headers

Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.

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Warranty (ATK Engines)

Technical Information (ATK Engines)

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

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

ATK Engines HP33 Specifications

KEY SPECS
MFG. Part #	HP33
Brand	ATK Engines
Compression Ratio	9.5:1
Engine Displacement	383 cu. in.
Camshaft Type	Hydraulic Roller
Cylinder Head Material	Cast Iron
Piston Material	Hypereutectic Aluminum
Carburetor Included	Yes
Intake Manifold Included	No
Distributor Included	No
Valve Covers Included	Yes
Cylinder Heads Included	Yes
Timing Cover Included	Yes
Oil Pan Included	Yes
Water Pump Included	Yes
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
Camshaft Duration (.050 in)	220° intake / 224° exhaust
Camshaft Lift (in)	.495 intake / .502 exhaust
Bore x Stroke (in)	4.040" x 3.750"
Material Type	Cast Iron
GTIN Code	00653517143441
Sold in Quantity	Each

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