How much can you bore a 389 Pontiac?

How much can you bore a 389 Pontiac?

You can bore the 389 out to use 400 pistons.

Where is the casting code on a Pontiac?

Pontiac Block Casting Number 1955 to 1963 Casting code is located on the passenger side of the block. 1964 to 1967 Located on the back of the engine near the Distributor. 1968 to 1981 Located on the ledge at the rear of the block behind cylinder eight

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 is cylinder number 1 on a Pontiac 400?

Note that the cylinder number 1 is the next driver in front of the engine (the same location on all V-engines) or just the first behind the power steering pump.

Where can I find the Pontiac engine number?

However, these are all searchable online or can be found in Mark Allen’s booklet, Pontiac V8 Engines Factory Casting Number and Code Guide 1955–81, which is available on Amazon or eBay.

Note that the cylinder number 1 is the next driver in front of the engine (the same location on all V-engines) or just the first behind the power steering pump.

When did the Pontiac 389 V8 come out?

The Pontiac 389 V8 was first introduced in 1959 and would become one of the most popular engines of the muscle car era. The engine evolved from the Pontiac 370 in which the stroke was increased.

When did the Pontiac 421 V8 come out?

In 1961 Pontiac continued to push the horsepower upwards with the release of the 421 engine. As with all other Pontiac V8 motors that evolved from the 316 V8, the 421 was simply a bored out and stroked version of the popular Pontiac 389 V8.

Where can I find a firing order diagram for a Pontiac 8?

Find solutions to your pontiac 8 firing order question. Get free Pontiac-built , , , , V8 Engine Firing Order: Firebird firing order diagram. I need the diagram for a distributor cap and plugs. or firing engine order for a pontiac Pontiac V8. , , *, , , , , , , At this site you can find the firing orders for Chevrolet engines.

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