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Old 04-28-2019, 12:13 AM   #35
weim55
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Join Date: Jan 2017
Location: Larkspur, Colorado
Posts: 904
Re: Befuddled with engine problem

Going the L31 route is a good one I've done a couple times myself. You do have to change a few things: Flexplate, intake manifold, add an electric fuel pump, harmonic balancer and timing cover. There's couple threads on board with details of the swap. Likely the warranty is void if you swap cams. You may even find a good deal on a roller long block in the aftermarket with a cam you desire ready to go. While the stock L31 isn't a tire burner it is a great runner with excellent off idle and mid range. Much much stronger than a stock 350 that came in these trucks.

Steve weim55 Colorado
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