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Discussion Starter · #1 ·
My 2003 Silverado is currently under construction. The old 4.8 vortec is getting replaced with a healthy LS1 with a ported throttle body, cold air kit, mild cam, computer tune, stainless headers, 4l60E with converter and a new rear end. Hopefully later down the road I can start on the paint and body
 

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Definitely want to see the finished product on this. Sounds like an impressive list. Looking at your truck makes me miss my '03 step side. They aren't that common.
 

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Discussion Starter · #6 ·
i got the truck this past Thursday and am still in the process of fixing it up. Here is what it has so far: LS1 engine, cold air induction, stainless steel headers, Built 4l60e trans with wide 2-4 band .500 boost valve 13 vane pump, beast super sun shell, borg warner clutches and a 3400 stall converter. Has a 3.42 rear end ratio. Currently its running stock exhaust from the cats back but that will soon be replaced. Will be putting the electric fans on and giving it a computer tune this weekend. Its my little sleeper truck right now. LOL Will get some pics of it this week. Very excited to get it back from shop.
 
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