I did an LS1 and T56 swap into my 1st-gen (henceforth the username) and there are very few differences with the LS3.
This swap has been done with just about every LS based engine at this point. It's very doable.
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SOLD 2010 Camaro # 13694 Victory Red 2SS manual | White rally Stripes | Polished Wheels | Rotofab CAI| MGW Shifter| Kooks LT's| Magnaflow X-pipe|FM 40 Delta Flows | Elite Tunnel Brace | "Ginger"
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