Quote:
Originally Posted by rusty76
Ok. So what did these magnum engines come in. You've got my curiosity up. Lol. Thanks
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The 351M was available in 2500's and up I believe. Then the larger engines like the 401 and 478 would be available in the 4500 and up. Here's a link to the 6066 GMC site...Lot's of info there!
www.6066gmcguy.com/EngineData.html