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diana smith
04-16-2000, 08:13 PM
i am looking for info on motor size of 1975 GMC Silverado 3/4 ton? is is a 454?<p>thanks

plowking35
04-19-2000, 07:05 AM
Hi Diana<br>It very well could be. Look at the valve covers, if they are about 6-7&quot; wide it should be a 454, if they are 4-5&quot; wide then it is a smaller v8 engine.<br>Dino