High compression on stock pistons?
Thread Starter
Staging Lane
Joined: Feb 2013
Posts: 62
Likes: 0
From: Tampa, Fl
High compression on stock pistons? E85 just made the pump locally and now I'm debating on doing the swap. If I do I'd like to take advantage of the higher octane by bumping up the compression. I've got a lq9 with stock rotating assembly and wondering if the stock pistons could handle say 13:1 compression, Structurally speaking. Any info or pointers would be appreciated.
Thread Starter
Staging Lane
Joined: Feb 2013
Posts: 62
Likes: 0
From: Tampa, Fl
With the extra compression the pistons would see more of a load. I just don't know exactly how much load they can handle and since mine are flycut they would be weaker on the crown.. They handle ot on boosted apps but they don't see that kind of compression always. I was thinking of milling 5.3L heads down to achieve it. My pistons are fly cut enough to make up for the milling.
