383 Chevy Long Block


The 470 HP version of our 383 Chevy Small Block Stroker is a step further in the direction of performance engines. It features a torque curve that is moved slightly higher in the RPM range resulting in a rougher idle and less low range torque than the 420 HP version. If you like to turn the wick up a bit on your street car, this may be the crate engine for you!

Payment Plans Available!paytommorrow_logo 383 Chevy Small Block Stroker Crate Engine: C383-HR-C2Get Pre-Approved

Fuel Type

Fuel Type

Pump Gas


Idle Quality

Idle Quality

Best Use

Best Use

Horsepower: 470
Torque: 450
Bore/Stroke: 4.030 x 3.750
Compression: 10:1
Fuel Type: Pump Gas, 93 AKI (USA) / 98 RON
Block: OEM 350, 2-Bolt Gen II
Crankshaft: Cast Steel
Rods: I-Beam, 5140 Forged Steel
Pistons: 4032 Forged Aluminum 5cc valve relief
Bearings: King SI / Clevite P
Camshaft: Hydraulic Roller
Heads: Aluminum, As-Cast
Valves: 2.02/1.60
Rocker Arms: Billet Aluminum, Full Roller
Intake: Not Included
Oil Pan: Street / Strip
Valve Covers: Polished Aluminum
Power Adder: N/A
Fuel Delivery: Not Included
Ignition: Not Included
Dyno Testing Image

Dyno Testing

Dyno testing not included in long block price. Here at Prestige Motorsports, our “Dyno Promise” means that we dyno test every engine we build to verify the quality of our work, the integrity of each component, and the reliability of every engine we construct. Then, we deliver the dyno results for your project directly to you, the customer. Hours for dyno testing will be calculated with the purchase of the fuel and ignition group per engine order.

Engines will produce +/- 2% of advertised power at the flywheel. Advertised power levels are achieved using an electric water pump and specific induction and exhaust systems. Power will vary after pulley systems are installed or if changes are made to the induction or exhaust system (e.g. camshaft, cylinder head, compression, intake manifold, exhaust headers, air filters, etc.). Chassis dyno results measure power at the wheels and only calculate flywheel horsepower. Wheel horsepower is affected by a variety of vehicle-specific criteria including driveline design, body and chassis flex, air intake location, etc. Therefore, calculating flywheel horsepower from wheel horsepower is not an accurate representation of actual flywheel horsepower.

Dyno Graph Image
Warranty Image


This Prestige Motorsports engine is built to order and comes with a 3-year, unlimited miles warranty. Our warranty covers the base engine from intake manifold to oil pan.

Comparable Engines

Product: Current: 383 Chevy Long Block 383 Crate Engine 408 Crate Engine
Horsepower: 470 500 470
Torque: 450 450 515
Best Use: Street Street / Strip Street
Max RPM: 6,000 6,000 6,000
Idle Quality: Rough Rough Lopey
Bore/Stroke: 4.030 x 3.750 4.030 x 3.750 4.030 x 4.000
Block: OEM 350, 2-Bolt Gen II OEM 350, 2-Bolt Gen II OEM 350, 4-Bolt Gen II
Crankshaft: Cast Steel Cast Steel 4340 Forged Steel
Rods: I-Beam, 5140 Forged Steel I-Beam, 5140 Forged Steel H-Beam, 4340 Forged Steel
Pistons: 4032 Forged Aluminum 5cc valve relief 4032 Forged Aluminum 5cc valve relief 4032 Forged Aluminum 16cc dish
Oil Pan: Street / Strip Street / Strip Street / Strip
Camshaft: Hydraulic Roller Hydraulic Roller Hydraulic Roller
Heads: Aluminum, As-Cast Aluminum, CNC Aluminum, As-Cast
Intake: Not Included Not Included Not Included
Price: $6,499 Starting at $6,999 Starting at $7,499

Upgrades & Add-ons

Ready to upgrade your project? Add a kit from each area below to convert your base engine into a turn-key package. Kits come installed and dyno tested with your engine. Please note that not all of the options listed below are available for every engine. Contact us for more details.

Fuel Supply

Don’t waste time and frustration on that old carburetor. Fuel your engine with a dyno tested system for proven performance.

Ignition System

You'll need a top-notch ignition system for trouble-free performance. Let us customize one for you with everything needed to keep the spark alive.

Pulley Kits & Accessories

Pulleys drive vital components. Let us install a high-quality kit that keeps your engine running and provides max clearance for cooling systems. Available in multiple finishes!