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Instruction Sheets for Part Number HPE-HP90
Charts & Guides for Part Number HPE-HP90
Technical Articles for Part Number HPE-HP90
ATK High Performance GM 383 Stage 1 Marine Long Block Crate Engines HP90
Part Number: HPE-HP90
ATK High Performance GM 383 Stage 1 Marine Long Block Crate Engines
Engine Assembly, Stage 1 Crate Engine, Marine, Long Block, 1-Piece Main Seal, Chevy, Small Block, 383, Each
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Estimated Ship Date from Texas: Monday 10/26/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
HP90
Part Type:
Product Line:
Summit Racing Part Number:
HPE-HP90
UPC:
00653517287787
Crate Engine Family:
Chevy Small Block
Actual Engine Displacement:
6.3L/383
Crate Engine Cylinder Head Material:
Cast iron
Engine Block Material:
Cast iron
Advertised Compression Ratio:
9.5:1
Assembled:
Yes
Engine Balance:
Internal/External
Cam Style:
Hydraulic roller, OE roller
Rear Main Seal Style:
1-piece
Intake Manifold Included:
No
Cylinder Heads Included:
Yes
Carburetor Included:
No
Throttle Body Included:
No
Distributor Included:
No
Oil Pan Included:
Yes
Valve Covers Included:
Yes
Timing Cover Included:
Yes
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
Supercharger Included:
No
Remanufactured:
Yes
Quantity:
Sold individually.
ATK High Performance GM 383 Stage 1 Marine Long Block Crate Engines
Replace the tired small block in your boat with ATK High Performance GM 383 Stage 1 marine long block crate engines. They are built from the ground up with off-shore performance in mind. These hand-built and balanced engines utilize Vortec power and stroker torque to produce an awesome 345 hp and 445 ft.-lbs. of twist that will get you moving on the open water. Each engine features brass freeze plugs and corrosion-resistant marine gaskets to keep the engines healthy and reliable.
ATK GM 383 Stage 1 Marine long block crate engines include:
* Handpicked, remanufactured blocks
* Dart Iron Vortec cylinder heads
* Nodular steel crankshaft and 4340 I-beam connecting rods
* Hypereutectic pistons
* Hydraulic roller camshaft
* Valve covers
* Timing cover and timing set
* Oil pan, pump, and pickup tube
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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