383 Chevy Long Block
Upgrade your 350 Chevy to the 383 Stroker Crate Engine for better acceleration and tire burning power. Our 383 Small Block will fit directly in place of your tired out 350. It comes standard with forged pistons, a 1-piece rear seal, hydraulic roller cam, aluminum heads for the best in reliable street performance.
NOTE: Timing cover and balancer not included at this price.
Payment Plans Available!Get Pre-Approved
Fuel Type
Max RPM
Idle Quality
Best Use
Horsepower: | 420 |
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Torque: | 460 |
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 |
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Heads: | Aluminum, As-Cast |
Valves: | 2.02/1.60 |
Rocker Arms: | Billet Aluminum, Full Roller |
Intake: | Call for options |
Oil Pan: | Call for options |
Valve Covers: | Call for options |
Power Adder: | N/A |
Fuel Delivery: | Call for options |
Ignition: | Call for options |
Pulley Kit: | Call for options |
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.
Warranty
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.
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.
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Dual Carbs, Throttle Linkage, Fuel Lines
Included on Supercharged Models -
Quick Fuel M-750
Starting at $664.95 -
Quick Fuel Q-750
Starting at $738.95 -
Quick Fuel SS-750
Starting at $637.95 -
Holley Multi-Point EFI
Contact for Options -
Borla Stack Injection
Contact for Options
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.
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MSD Pro Billet System
Starting at $859.95 -
MSD Pro Billet System with Boost Retard
Included on Supercharged Models
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!
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Alternator Only
Starting at $750.00 -
Alt + Power Steering
Starting at $1,150.00 -
Alt + PS + Air Conditioning
Starting at $1,750.00 -
Style Track Alt + PS
Starting at $2,300.00 -
Ultra Drive Alt + PS + AC
Starting at $2,300.00