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Pontiac Forged 455 Popular Q&A

Q: How to Identify a Pontiac 455.
A: 1. Find the date code on the driver's side on the back of the block. It consists of four alphanumeric characters, "A249, for example. The letter represents the ... Read More »

Q: How to Break in a Pontiac 455 Engine.
A: 1. Drive the Pontiac for 500 miles at varied speeds without exceeding 50 miles per hour. Avoid driving at any one set speed and accelerate and decelerate often.... Read More »

Q: What are the specs on a Pontiac 455?
A: Horsepower and torque specs varied greatly depending on the year of production, highest per year were: 1970 455 =360-370hp@4600, 500lbft@2900 (hp depending on c... Read More »

Q: What is a Pontiac 455 auto?
A: The Pontiac 455 debuted in 1970 with 10.25:1 compression. Grand Prixs had them and Read More »

Q: What cylinder is 1 on a Pontiac 455?
A: #1 should be the front plug on the driver side of the engine. Driver side front to rear.1,3,5,7 Passenger side front to rear 2,4,6,8. Read More »