Boost capabilities.

[andrewb70]

I've got a 6.0 LQ4 short block with L92 heads. How much boost can this combo reliably handle? 9? 10? Thanks.

For how long is really the right question. Guys on LS1tech seem to run pretty high boost levels on stock engines, but they are drag racing or doing the occasional street pull. If you plan on using this engine for any sort of sustained time in boost, I would keep it under 8. There are a lot of variables of course, but that should be safe. If you have the engine apart, you might want to open the ring gap a little. This will keep the ring ends from butting together when they are very hot, which will pop a piston crown.



Andrew