Originally Posted by Mustang_5.0
How much can a stock track pack 5.0 internals handle and how much can the block handle??
You are going to get 847 different answers and opinions, but the truth is.. There is no "limit" per say. There are guys who blow the motor bone stock while not even racing. Even more who blow there motors flying down the highway with a CAI and a tune on it. Then you have the polar opposite.. A guy making over 700rwhp on a stock non track pack 5.0 and it's still ticking. Many, many guys making damn near 600rwhp on Paxton, vortech, and procharger set ups and putting many miles on them with no issues. Even the owner of hellion turbochargers put 800+rwhp on a stock block 5.0. I'd say if you have a great tune and don't beat the piss out of it all the time, you could do just like many others and push 600rwhp on your motor.
But just to answer your question specifically.. I would start looking for a boss crate motor for sale once I hit 570+rwhp. It's only a matter of time before you romp on it in cool weather and break a rod or that motor gets tired of the boost.