How Do I Identify My Pontiac Engine?

You can figure out what engine it is if you have the casting code and the casting date handy as well. Pontiac began utilizing a two-digit letter code in 1965, replacing the previous one. The motor unit number, which will be either 6 or 7 digits in length, will be shown above the 2 digit code.

How do I tell what year my Pontiac engine is?

This article will assist you in determining the year and size of the Pontiac engine in your vehicle. The number ″455″ is stamped on the driver’s side front of the engine; click on the image for a bigger view. Rob Conrads provided the photograph. ″455″ marking in the lifter galley (see photo for details).

Where can I find the V8 engine code for my Pontiac?

This information, on the other hand, may be accessed online or in Mark Allen’s handbook, Pontiac V8 Engines Factory Casting Number and Code Guide 1955–81, which is available on Amazon or eBay.

How to look up a Pontiac VIN number?

Pontiac VIN decoder – Lookup and check your Pontiac VIN number, as well as obtain vehicle history information from the manufacturer.This is the VIN decoder for the Pontiac.Every Pontiac vehicle is identified by a VIN, which stands for Vehicle Identification Number.This number provides important information about the vehicle, such as the manufacturer, the year of manufacturing, the facility where it was manufactured, the type of engine used, the model, and other details.

How do you decode a Pontiac engine number?

The date code consists of four digits. First digit represents the month, followed by two digits representing the day of the month, and finally the last digit represents the year (6 could be 1966 or 1976). This article will assist you in determining the year and size of the Pontiac engine in your vehicle.

You might be interested:  FAQ: What Causes An Engine To Misfire?

How do I identify a Pontiac 350?

How to Determine the Year of a 1969 Pontiac 350 HO

  1. Find the engine’s manufacturing number or block number by looking it up online. In accordance with Firebird, it is situated on the front of the block, on the passenger side, immediately below the cylinder head.
  2. Decode the production number as well as the engine code.
  3. The block VIN should be located and decoded.
  4. Locate the code for the casting date

Are all Pontiac blocks the same?

‘With the exception of the PN 500557 casting, which dates from the mid- to late-1970s, we believe all Pontiac 400 blocks to be essentially equivalent,’ he says. In addition, the 455 blocks from 1970 to 1976 are functionally similar to one another.

What was the best Pontiac engine?

The Ram Air IV, which could outperform a 455 in the quarter mile, was scheduled to be phased out by the 455 and its 370 horsepower. However, the Ram Air IV could outperform a 455 in the quarter mile throughout much of the 1970 model year. Hanks feels that the Ram Air IV engine from 1969 to 1970 was the finest Pontiac engine ever in terms of particular power output.

What is a Pontiac HO engine?

A family of overhead valve 90° V8 engines built by the Pontiac Division of General Motors Corporation between 1955 and 1981 are referred to as the Pontiac V8 engine. The engines are constructed of cast iron, including the block and head, and have two valves per cylinder.

What CC are Pontiac 6X heads?

Pontiac Heads

You might be interested:  What Part Of Vin Tells Engine Size?
6X 75-79 350 & 400 ALL 75-76 455 see chart below
5C,5X,5G 75-76 455, SOME 350 93-114+

Did Pontiac make a 350 motor?

Pontiac 350s are treated as though they are worthless. The 350 engine, which is overshadowed by the bigger 389, 400, 421, 428, and 455 engines, is the Rodney Dangerfield of Pontiac engines.

How do I identify a 455 engine?

The year the engine was built is indicated by the numerals cast on the bottom left corner of the engine block — or on the cylinder head — during the casting process. For a 455 die, the casting numbers 395021F, 396021Fa, and 231788L are all valid.

How much horsepower does a Pontiac 350 have?

What kind of horsepower does a stock 350 have? What amount of horsepower can you expect from a factory 350 small block motor? Power ranges from 145 to 370 horsepower (assuming a year-over-year performance). This 350-horsepower collection has grown from 140 horsepower to 370 horsepower throughout the years.

What color are Pontiac engines?


Year &Engine Type Color
1971 until March 15, 1973 approx engine number 532027 Pontiac V8 Light Blue
1966-1970 Pontiac 6 & V8 Light Blue Metallic
1959-1965 Pontiac V8 Light Blue
1957 Bonneville all 1958 Pontiac V8 Turquoise Blue

Did Pontiac make a 428 engine?

From 1967 to 1969, the Pontiac 428 cubic inch engine was exclusively available. Despite the fact that it was one of the biggest engines Pontiac ever made, it was mostly employed to power huge vehicles such as the Bonneville, rather than high-performance vehicles such as the Firebird.

How do I identify a Pontiac 400 engine?

While you’re looking, you can come across a rather straightforward indication that will put a stop to your engine identification quest. The number ″428″ is imprinted between the freeze plugs on 428 blocks manufactured in 1968–1969. Blocks manufactured in 1970 and after will have the numbers 350, 400, or 455 imprinted on the left-hand side of the block’s front face, respectively.

You might be interested:  Who Created A Steam Engine In 1704?

What was the most popular Pontiac?

It is safe to say that the 1966 Pontiac GTO is one of the most popular muscle cars in history, having sold almost 100,000 units in a single calendar year.

How much horsepower can you get out of a Pontiac 400 engine?

Ultimately, the combination of No. 97 jets square, 0.030/0.020 valve lash, and 31.5 degrees timing resulted in 650.4 horsepower at 6,300 rpm and 596 pound-foot torque at 4,900.

Engine Buildup Worksheet
Engine Displacement 463
Torque 596 lb-ft
Bore/Stroke 4.185/4.21-in
Block/Crank Combo 400 block, bored 0.035-in/stock 4.210,

How to identify your Pontiac engine?

In order for the number to be recognized, no spaces or symbols such as asterisks should be used while entering it. – Thoroughly clean and inspect the plate because letters and numbers may appear to be the same. – It is not necessary to use capital letters because the system recognizes both lower- and upper-case characters.

What are the engine codes on a Pontiac?

  1. 123456 – Engine Production Number (there is no relationship between this number and the vehicle VIN)
  2. WS -Engine Source Code
  3. 22P100001 – Engine VIN code was introduced in late 1967 to the list. (2=Pontiac, 2=Model Year, P=Pontiac Assembly Plant, 100001=Last six digits of the vehicle identification number)

Do Pontiac have interference engines?

A giude on the timing chain of my 2001 Pontiac Montana with a 3400 engine broke, causing it to jump timing. I’d want to know if it’s an interference engine or not. click here to find out more George H. W. Bush

How to identify Pontiac engine blocks?

With the help of the casting code and the casting date, you may figure out where the engine is being built. Pontiac began utilizing a two-digit letter code in 1965, replacing the previous one. The ″W″ coded blocks indicate manual transmissions, whereas the ″Y″ coded blocks indicate automatic transmissions. Furthermore, the majority of the ″Z″ coded blocks are similarly automatic.

Leave a Reply

Your email address will not be published. Required fields are marked *