HAVE YOU READ ALL THE STICKIES? lol why would you want to switch from a 5.3 to a 5.7? Aside from it being aluminum, there is no real advantage. The power potential is pretty much the same and its slightly easier to reach higher comp ratios with a 5.3.
'02 Silvy: Z71 EC Step Side 5.3L Nelson tuned
2013 GMC Acadia: SLT1 Carbon Black
1976 Corvette Stingray: Trying to save it, progress is slow.
^Ricky's Sweet PS Skilz
09/21/2010 02:31 <danger_ranger83> I'm not really worried about the looks...I want it to be fast and ugly...bc no one wants to get outrun by something ugly
Actually the 5.7 for some reason blows the 5.3 out of the water. There are stock shortblock 5.7s making as much as 480rwhp and i have yet to see a 5.3 that actually made 400rwhp. Alot more potential with a 5.7.Originally Posted by cjriojas
i had read somewhere on here that they are similar in power potential. either way, i dont have experience so i'll go with what he says^^^^^^^^^
'02 Silvy: Z71 EC Step Side 5.3L Nelson tuned
2013 GMC Acadia: SLT1 Carbon Black
1976 Corvette Stingray: Trying to save it, progress is slow.
^Ricky's Sweet PS Skilz
09/21/2010 02:31 <danger_ranger83> I'm not really worried about the looks...I want it to be fast and ugly...bc no one wants to get outrun by something ugly
I 100% agree. BUT, lol...Would it not be more practical(if you could call it that), to use the money he's going to spend on a 5.7 swap, and put it into heads, cam, headers, etc., etc., on his 5.3, thats already in his truck? Don't get me wrong, I went with the 5.7 myself, but I was replacing a V-6. I'm just sayin'...?
Dang, I knew I shoulda kept that Firebird 5.7. Ahh well, ya win some, ya lose some. I'd swap in the 5.7, also. IMO.
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