Easy tips

What was the name of the 1991 Pontiac Firebird?

What was the name of the 1991 Pontiac Firebird?

All 1991 Pontiac Firebird models received restyled noses loosely fashioned after “Banshee” show car as Pontiac was developing the new fourth generation platform. 1991 Pontiac Firebird Trans Am’s ground effects restyled as well. 1991 Pontiac Firebird base model available with 1991 Pontiac Firebird Trans Am ground effects.

Can You rebuild a Firebird Pontiac Trans Am?

Firebirds and Trans Ams fitted with the special high-performance engines command the highest values, but certainly the more common Firebird and Trans Am V-8 cars are worth rebuilding. This Tech Tip is From the Full Book, TRANS AM & FIREBIRD RESTORATION: 1970-1/2 – 1981.

Where is the block code on a Pontiac Firebird?

The date code for the Pontiac V-8s is found at the back of the block near the driver-side cylinder bank and distributor hole. The block casting number is found behind the passenger-side cylinder bank at the rear of the block. All engines installed in the Firebird have a block code. The block code tells you the engine and application.

When did Pontiac change the motor mount on the Firebird?

In 1970, Pontiac revised the motor-mount bosses in the Firebird blocks to have five mounting holes; not all of them were tapped. The exception is the 1978 and 1979 400 blocks. They did not have the rear part of the motor mount openings at all.

When was the first Pontiac engine block cast?

For example, a block stamped “J129” was cast October 12, 1959, 1969, or 1979. Armed with the previous clues, you can pin the year down. If the block is stamped with a 350, 400, or 455, it was likely cast in 1969, because GM (as discussed) started stamping the displacement on the block for the 1970 model year.

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.

How to tell the age of a Pontiac engine block?

This is where you will find your first clue of the engine’s age: If the valley pan has the PCV port at the rear, the block is from 1966 or older, and if the port is at the front, it is 1967 and newer. Of course, the valley can be easily changed or missing, so you’ll need to pry further.

Where is the casting code on a 1968 Pontiac?

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. We’ve found the Wallace Racing website to be particularly helpful and accurate.

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Ruth Doyle