Item #
22643
BRAND: ATK Engines
ATK Chevy 383 Marine Stroker Engine 345HP Base HP90
HP90 ATK Chevy 383 345HP Marine Stroker Base Engine Long Block Price Includes $225 Core Charge
HP90 ATK Chevy 383 345HP Marine Stroker Base Engine Long Block Price Includes $225 Core Charge
HP90 ATK Chevy 383 345HP Marine Stroker Base Engine Long Block Price Includes $225 Core Charge
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Product Overview:
Description
Cruise down the open waters with ease by installing this ATK HP90 Chevy 383 Marine Stroker Engine 345HP Base. It uses Vortec power and stroker torque to deliver 345 horsepower and 445 ft.lb torque that will keep your boat moving smoothly. This crate engine is hand built with brass freeze plugs and corrosion-resistant marine gaskets to survive offshore environment.
Engine Specifications:
- Horsepower: 345
- Torque: 445 lbs./ft.
- Block: Seasoned OE 4 Bolt Main 1pc Seal Roller Block P/S Dipstick
- Bore/Stroke: 4.040 x 3.750
- Displacement: 383 C.I.D.
- Crankshaft: Scat Nodular Iron 3.750" Stroke Externally Balanced Rear/Internal Front 1pc.
- Connecting Rods: Scat 4340 Forged I Beam 5.700" ARP 8740 Bolts
- Pistons: Hypereutectic
- Piston Rings: Moly Rings
- Compression Ratio: 9.5:1 Compression
- Camshaft: Hydraulic Roller
- Camshaft Specifications: 210/215 @050 .462in/.470ex 114LSA
- Camshaft Bearings: Installed & Clocked to OEM Position
- Cylinder Heads: Dart Cast Iron 67cc/165cc 2.02/1.60
- Freeze Plugs: Brass Installed & Sealed
- Rocker Arms: Stamped Steel 1.5 Ratio
- Oil Galley Plugs: Installed & Sealed
- Oil Pan: OE 5qt.
- Weight: 350
ATK specializes in muscle. With the highest quality internal parts and Dyno Proven combinations of every engine built, ATK is able to add the most bang for your buck and back it up with an industry leading warranty.
In the Box
Guides & Accessories
Reviews
Questions & Answers
What is the rpm range on this motor
these should max out at 4200-4400
Date published: 2023-09-06
When will you get engine in stock
Please contact our Sales team by calling 800-343-9353 or by emailing help@eastwood.com
Date published: 2021-07-25
22ft boat has a mercruiser 350. 1995. Will req'd components swap to fit. Eg. Starter. Flywheel dampner exhaust manifolds. Where would expect to find a concern if any ? Does the cam inhibit water intrusion ? What my final cost be shipped to BC Canada
Due to the complexity of your Questions it is recommended that you contact ATK Performance Engine @ 1-866-721-2315 for specific details pertaining to your application.
Date published: 2020-12-02
the block new or used ?
This is a re-manufactured block. Backed by ATK's warranty.
Date published: 2020-11-20
ATK Chevy 383 Marine Stroker Engine 345HP Base HP90
$5,813.00
In Stock