Table of Contents
Where is the engine code on a Pontiac?
On 1955–63 blocks, the casting code is on the passenger side of the block. For 1964–67, they are found on the distributor pad. Casting codes for 1968–81 appear on the ledge at the rear of the block behind cylinder eight. Once you locate the casting code, you can find your block through a number of searchable databases.
How do you decode a Pontiac engine number?
The date code is 4 digits. The first digit is the month, the next 2 digits are the day of the month, and the last digit is the year (6 could be 1966 or 1976). This page will help you identify the year and size of your Pontiac engine.
Is a 389 A big block?
There is no Pontiac big block or small block. they have the same physical demensions. You can take a 455 and drop it right into that 60 pontiac.
Is the 389 a good motor?
They were responsive and flexible, building enough torque to move a 3,600-pound Goat around with authority, yet they could be docile enough for trips to the grocery store. It was an ideal situation for street-performance enthusiasts because in the relatively light GTO body, the 389 engine really shined.
How do I identify my Oldsmobile engine block?
Facing the front of the engine, at the top surface of the timing chain area, to the left of the oil fill tube, there is a code about 1.5″ high followed by the casting number. A letter indicates a big block, a number indicates a small block.
Are all Pontiac 400 the same?
He advises, “With the exception of the mid- to late-1970s PN 500557 casting, we consider all Pontiac 400 blocks functionally identical. The 455 blocks from 1970 to 1976 are also functionally identical.
What does the block code on a Pontiac engine mean?
Pontiac engines have block code. This code will tell you the year it was to be used. However, these codes were used over from year to year. Together with the casting code and casting date you can determine where what the engine is. Starting in 1965 Pontiac began using a 2 digit letter code.
What kind of engine did the Pontiac 389 have?
The engine evolved from the Pontiac 370 in which the stroke was increased. There were a lot of changes to the 389 during its eight year production run which gained the engine even more notoriety. Most experts agree that the 389 was one of the key factors in starting the muscle car wars of the 60s.
Where do you find the number 428 on Pontiac engine blocks?
As you look there you may find a pretty simple clue that will end your engine identifying search. On 1968–69 428 blocks you will find “428” stamped between the freeze plugs. On blocks produced in 1970 and after, you will find 350, 400, or 455 stamped towards the left side of the front of the block.
Where do you find the engine code on a 1966 Ford Block?
1. Production Date Code 2. Block casting number 3. Engine Code 1. Production Date Code on the block. This can be found on the distributor pad. It consists of letters A-L for month (A=January, etc.) One exception is that 1966 blocks made for 1967 model year have an M for December instead of L.