5.3 Turbo Build
I would go down to a 3.23-3.73 and choose tire size accordingly. 275 wide on street tires or 10.5 on slicks are great for those.
http://www.ebay.com/itm/181550085463
http://www.ebay.com/itm/181550085463
Most OEM manifolds are very thick cast iron and not prone to crack. Some are SS as well and are stout pieces as well. I prefer the SS OEM manifolds.
I am using Forward truck mani's. I notched the K-memeber on the passenger side but you can modify the mani to clear depending on turbo location. I needed the space bc the placement I chose. Drivers side I didnt have to notch at all.
Here are a few pics of mine that im in the middle of making. (hot side isnt done obviously)
Jay
Also to add. I preheated the mani's where I was welding with a map torch, then cooled them in sand. Did about one inch at a time. However my buddy is going on 2 seasons and just migged his no heating etc. I welded mine with a Lincoln 110v Mig welder. Using S-6 Mild steel wire. And used 14awg Aluminized Mild tubing
Jay
The Best V8 Stories One Small Block at Time
You're starting to overthink this. Thats the worst mistake you can make.
Jay
Jay
http://www.jegs.com/i/GM-Performance...34398/10002/-1





