Id numbers for gm 400 engine

Gen I small-block Chevy engine.

This drawing is of the version of the cid Chevrolet. Drawings by David Kimble. Production of the original small-block began in the fall of , for the model year, with a displacement of cid, growing incrementally over time until reaching cid in Several intermediate displacements appeared over the years, such as the cid that was available with mechanical fuel injection, the cid as well as the numerous cid versions.

Over the years, every American General Motors division, except Saturn, used it and its descendants in their vehicles. In all, over 90,, small-blocks have been built in carbureted and fuel injected forms since Chevrolet Block Identification number locations.

How to Identify a Chevy Engine by Numbers

Photo from www. Big Block Chevrolet. The CT racing crate engine features Fast Burn cylinder heads with LS-style beehive valve springs that enable great high-rpm performance and durability. The beehive springs are part of the lightweight aluminum cylinder head assemblies. The CT also has a tough bottom end, anchored by a forged steel crankshaft and strong aluminum pistons installed in a brand-new block with four-bolt mains.

With Mobil 1 full synthetic motor oil for street engines and Mobil 1 Racing oil for race engines, Mobil 1 protects all Chevrolet Performance crate engines. Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances.

These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle. Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet emissions laws and regulations and should not be operated on public roads or used for any other use. In an effort to help consumers maintain compliance with emissions regulations, the product descriptions for many parts include emissions-related warnings and notices. This page summarizes the emissions-related information that you may see on this website.

Ford 351 Cleveland Engines: Block Identification Guide

Consumers are strongly advised not to install parts accompanied by this warning on vehicles that will be driven on public roads, as they are not designed for that purpose. Installation or use of this part on a vehicle operated on public streets or highways is likely to violate U. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm.

For more information go to www. The Manufacturer's Suggested Retail Price excludes destination freight charge , tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' destination freight charges.

Chevrolet Infotainment System functionality varies by model. Full functionality requires compatible Bluetooth and smartphone, and USB connectivity for some devices.


Vehicle user interface is a product of Apple and its terms and privacy statements apply. Requires compatible iPhone and data plan rates apply. Apple CarPlay is a trademark of Apple Inc. Siri, iPhone and iTunes are trademarks of Apple Inc. Always use seat belts and child restraints.

The importance (or unimportance) of originality

Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information. Services are subject to User Terms and limitations. Certain services require working electrical system, cell service and GPS signals.

Chevy Identification Numbers

OnStar links to emergency services. Visit onstar. Services are subject to user terms and limitations. Availability subject to change.

Services subject to user terms and limitations. Certain services require working electrical system, cell service, and GPS signal. If you decide to continue service after your trial, the subscription plan you choose will automatically renew thereafter and you will be charged according to your chosen payment method at then-current rates.

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Lastly, in extreme cases, you'll want to verify the numbers stamped onto the component were the ones stamped into it originally and aren't restamped. The point of this article is to help you figure out how to decode stuff. Engine Code Stamping Numbers All engines are stamped with an engine ID code, consisting of assembly plant code, production date and suffix code. V8 codes are stamped on a pad just forward of the right side passenger cylinder head. Click here for Chevy Engine Code Listings The engine date must precede the car build date, otherwise something is amiss.

Some engine machining operations decking will obliterate the engine ID. The format consists of divisional identification number, model year, assembly plant designation and vehicle serial or sequence number. In model cars, the serial VIN number of the car the engine was installed in is stamped next to, or under the engine code ID. Starting in , the serial number is stamped either above the oil filter, somewhere on the block pad in front of the cylinder head , or on the transmission flange somewhere.