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400 Chevy Boost Ready Short Block

$5,999

This is our boost ready 400ci small block Chevy short block. Ready to handle almost whatever you can throw at it with an aftermarket 4-bolt splayed block and an all forged rotating assembly. 

Payment Plans Available!paytommorrow_logo 400 Chevy Small Block Boost Ready Short Block C400-B1-SBGet Pre-Approved

Fuel Type

Fuel Type

Pump Gas
Max RPM

Max RPM

6,000
Idle Quality

Idle Quality

Lopey
Best Use

Best Use

Street / Strip
Horsepower: Up to 650
Torque: 600
Bore/Stroke: 4.125 x 3.750
Compression: 10:1
Fuel Type: 91+ AKI (USA) / 95-98 RON
Block: Aftermarket 350, 4-Bolt Splayed Iron
Crankshaft: 4340 Forged Steel
Rods: H-Beam, 4340 Forged Steel
Pistons: 2618 Forged Aluminum 28cc dish
Bearings: King XP
Camshaft: -
Heads: -
Valves: -
Rocker Arms: -
Intake: -
Oil Pan: -
Valve Covers: -
Power Adder: -
Fuel Delivery: -
Ignition: -
Dyno Testing Image

Dyno Testing

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.

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

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.

400 Chevy Small Block Boost Ready Short Block C400-B1-SB

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!