5.3 buildup
#1
5.3 buildup
I'm in the process of building up a 5.3 for my 2003 silverado, it has a powerdyne supercharger on it which was installed new. My question is how far can the 5.3 be safely bored, from what i've read they can be bored out to 5.7 easy, so can they be bored safely to .010 over a 5.7, we want to be able to put forged pistons in. The Supercharger is staying on the truck, so any help would be great!
#6
TECH Senior Member
iTrader: (16)
I'm in the process of building up a 5.3 for my 2003 silverado, it has a powerdyne supercharger on it which was installed new. My question is how far can the 5.3 be safely bored, from what i've read they can be bored out to 5.7 easy, so can they be bored safely to .010 over a 5.7, we want to be able to put forged pistons in. The Supercharger is staying on the truck, so any help would be great!
If your set on building an Iron 5.7L have the cylinder walls Sonic checked first. All though it's not overly common, A few guys on here have actually gone through the cylinder wall while boring out to the standard 5.7L Spec. I don't believe it is as much of a casting issue but more of a porosity issue from corrosion.
As mentioned you can now get forged slugs with a few differrent options from Wiseco for the 5.3 Blocks...
Good luck!!!