Thread: 428 SD
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Old 10-14-2012, 02:25 PM
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He keeps referring to this,
you should hear all the names this guy is calling me.

About the Pontiac 428 Engine
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Rob Wagner
Rob Wagner is a journalist with over 35 years experience reporting and editing for newspapers and magazines. His experience ranges from legal affairs reporting to covering the Middle East. He served stints as a newspaper and magazine editor in Saudi Arabia and the United Arab Emirates. Wagner attended California State University, Los Angeles, and has a degree in journalism.

By Rob Wagner, eHow Contributor
About the Pontiac 428 Engine The Pontiac 428-cubic-inch V-8 engine was only available from 1967-1969. It powered such cars as the Grand Prix, and was in limited numbers on the GTO and Firebird. Its origins can be traced to Pontiac's development of the V-8 in 1946.

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Background
General Motors' Pontiac was slow in developing the V-8, clinging to the inline-eight engine that served Pontiac since 1933, but relented in 1952 to match other GM engines, according absoluteastronomy.com.

428 Origins
The 428 is derived from the 421-ci V-8 that debuted in 1961 as Pontiac's Super Duty version, and was used in NASCAR stock car racing, according en.allexperts.com.

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Long Journal
The 421 and the 428 were the first of Pontiac's big "long journal" V-8s, with the 421 featuring large 3.25-inch main journals, a 4 3/32-inch bore and 4-inch stroke, according absoluteastronomy.com.

Bigger is Better
The 421 was produced until 1967, when the 428 debuted with a larger 4 ¼-inch bore and the same size stroke and main journals, according to yearone.com.

Slight Changes
Pontiac stopped using steel crankshaft in 1961 and shifted to cast iron, but used a stronger alloy in the cast iron for the 1969 428s, according absoluteastronomy.com.

Short-Lived
The 428 was only available in large Pontiacs, and a few were factory installed in GTOs and Firebirds before being replaced for 1970 by the 455, according to absoluteastronomy.com.



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