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Instruction Sheets for Part Number HPE-HP55C-EFI
Charts & Guides for Part Number HPE-HP55C-EFI
ATK High Performance GM 383 Stroker 500 HP Stage 3 Long Block Crate Engines with EFI HP55C-EFI
Part Number: HPE-HP55C-EFI
ATK High Performance GM 383 Stroker 500 HP Stage 3 Long Block Crate Engines with EFI
Crate Engines, GM 383 Stroker 500 HP Stage 3 Long Block with EFI, 6.3L/383, Assembled, Aluminum Heads, FiTech EFI System, Chevy, Small Block, Each
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Estimated Ship Date: Jan 26, 2027 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
HP55C-EFI
Part Type:
Product Line:
Summit Racing Part Number:
HPE-HP55C-EFI
UPC:
653517517891
Crate Engine Family:
Chevy Small Block
Actual Engine Displacement:
6.3L/383
Crate Engine Cylinder Head Material:
Aluminum
Engine Block Material:
Cast iron
Advertised Compression Ratio:
10.2:1
Assembled:
Yes
Engine Balance:
Internal/External
Cam Style:
Hydraulic roller, OE roller
Rear Main Seal Style:
1-piece
Intake Manifold Included:
Yes
Intake Manifold Style:
Fuel Injection
Cylinder Heads Included:
Yes
Carburetor Included:
No
Throttle Body Included:
Yes
Distributor Included:
Yes
Oil Pan Included:
Yes
Valve Covers Included:
Yes
Timing Cover Included:
Yes
Water Pump Included:
Yes
Harmonic Balancer Included:
Yes
Flexplate Included:
Yes
Flywheel Included:
No
Air Cleaner Included:
No
Spark Plugs Included:
Yes
Spark Plug Wires Included:
Yes
Computer Included:
Yes
Wiring Harness Included:
Yes
Water Pump Style:
Long
Supercharger Included:
No
Remanufactured:
Yes
Quantity:
Sold individually.
Notes:
Includes FiTech EFI system.
ATK High Performance GM 383 Stroker 500 HP Stage 3 Long Block Crate Engines with EFI
ATK High Performance GM 383 Stroker 500 hp Stage 3 long block crate engines with EFI are designed for better drivability and trouble-free cold starts with no tuning required, regardless of elevation, driving habits, or part swap! Based around FiTech Self-Learning EFI systems, these engines come complete from throttle body down to the oil pan. The only thing you will need is to supply is the fuel system--in line, in tank, or the FiTech Fuel Command Center. They are dyno-tested with your EFI system and ready to go!
Typically ATK GM 383 Stroker 500 hp complete long blocks consist of:
* Seasoned OE block with 4-bolt mains
* 4340 forged crankshaft
* 4340 forged H-beam connecting rods
* Forged pistons
* Chromoly piston rings
* Hydraulic roller camshaft
* ATK aluminum cylinder heads
* Billet roller rocker arms
* Timing set
* Oil pan, oil pump and pick-up tube
* Valve covers
* Flexplate
* Performance intake manifold
* Distributor HEI
* Long water pump
* Front damper
* FiTech Go EFI 4-600 hp
* Spark plugs and wires
* Dyno test/tune
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