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Author Topic:   pontiac v6 reliable?
Dirt Full Roller

Total posts: 34
posted January 29, 2004 10:41 AM  
In my neck of the woods, v6 racing has just started at three tracks. In two junkyards near me, pontiac grand prix and ams are thicked than flys. My question is, Can those v6 pontiacs be reliable enough to race on 3/8 mile ovals? Thanks for any info that you share!

Dirt Forum Racer

Total posts: 99
posted January 29, 2004 04:58 PM  
From my experience working on them(in a repair shop not a racetrack lol),I would think a good 3.1 with a 125 tranny(3speed auto)or a 5 speed would be pretty durable. The overdrive trannys and the 2.8 engines don't seem to be as tough. the 3.8 grand prixs are a good engine too but only come with the overdrive tranny. I think a grand am with a 3.1 and a 5 speed would be hard to beat.

Dirt Forum Champ
Total posts: 635
posted January 30, 2004 11:32 AM  
Ya.. the 3.1's can be a pretty decent engine, just make sure it's a '91 or newer block. The '90 3.1 block was the same as the older 2.8 block and cracked like crazy.

If you can find one, the 3.4 (not the DOHC) was put in some Lumina MPVs I believe. It's the same external dimensions as a 3.1 but it's +.125" bore really could be an advantage. Graft a 5 spd in with a 3.4 and some decent headers (the stock manifolds blow) and you're set.

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