Sbc Numbers On Front Of Block Code Looks Similar

Only V-8 passenger cars are covered, does not include truck, marine or industrial engines.

Sbc Numbers On Front Of Block Code Looks Similar

On later model engines the engine assembly code looks similar to this T0422TR.

In this.

The motor was assembled at the Tonawanda factory on April 22nd.

For example, in 1974 the suffix code CMR was used on three different vehicle models with the same engine.

Relying solely on the suffix code to identify the original use of the block can be misleading.

You need to look at ALL of the casting identifiers before making your determination.

Deciphering VIN numbers, trim tags and original factory documentation can also help.

You might see something like this CE123456 on the front pad of the block deck on.

Likewise if a purchaser bought a new motor from the Chevrolet Parts counter, the.

Later model crate engines, sold over the counter by Chevrolet or.

GM Performance Parts, may have different prefix code identifiers stamped in to the front pad.

These numbers are found after removing the valve cover on the head.

Some aluminum heads have the casting date on the underside of an intake runner.

The casting number of the cylinder head follows the same form as those found on blocks.

The head casting date will have a letter for the month and numerals for the day of the month.

In the picture above, the casting number is shown with the casting date right below it.

On other head castings the casting date may be in a different location in the rocker arm valley and is not always right below the casting number.

Look at all of the features on the heads to help determine which casting you have and when it was made.

First let me say that HIPERF or HIPER was used on ALL 65-91 Mark IV big block blocks and.

Two-bolt, low performance big blocks received the same HIPERF designation.

In this regard, keep in mind that ALL.

These desirable blocks can be identified by looking at the block face under the timing chain cover for 010 AND 020.

Chevy Small Block 1955-1999 Factory Part Casting Number Guide, Chevy Big Block Suffix Codes 1965-1999 and the Chevy Big Block 1965-1999 Factory Part Number Casting Number Guide.

There are currently four volumes covering the period from 1955 to 1975.