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Old 07-12-2006, 10:27 PM
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NP420 Chevy 4 speed question

I got a buddy with an NP420 4 speed chev tranny and i was just wondering if anybody had any information on this transmission. I got 350 horse smallblock and just wondering if this tranny is Good as in worth rebuilding.. or if it's as sh**y as a SAG. just making sure before i buy it.. IF i buy it.
Thanks guys!

oh ya.. whats the name for this tranny? other trannys have names like muncie, rockcrusher, super T-10... whats this one?

Ryan350 :thumbup:

Last edited by boneyard Buick; 07-12-2006 at 10:28 PM. Reason: mispelled 2 words
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Old 07-13-2006, 05:10 PM
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I have always had good luck with most all New Process components, however I have no personal experiance with the NP420, but I do know that Some Dodge Military truck (M37) refered to this trans as a "Model 88950" Otherwise anything that starts with NP stands for "New Process"

If it was me, and the tranny doesn't cost that much, I would go for it. After all if the Military used them for their trucks, I would think they would be strong enough.
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