Hey Steve, what is going to be the max bore on the LSx engine?

And I live in Dana Point/ San Clemente area, about 20 mi north of Oceanside.
Do you guys have a front office for the shop so I can drop by and see what is going on with the cuting edge of LSx technology.

 

Unless you plan on running copper head gaskets, the current max. bore will be limited to 4.200" using Cometic head gaskets made for the Darton MID sleeves.

Call me when you get a minute 760-630-0450 so we can figure out a time you can take a ride down.

Steve

 

I have a question

What is the max safe bore size without sleeving? What stroke and rod length to maximize cubes without negatively affecting pin placement and piston integrity?

Engine wouldn't be revved over 6400rpm.

Cheers,
Chris

 

Every block is different so you should sonic check it first but a 30 over should be ok. I have a 413ci using a 20 over(4.075 bore) and a 3.96(stroke). That was the max my engine builder would do safely for both bore and stroke on the 6.1 block otherwise I would have a 426ci. The 392ci with a stock bore(4.055) and a 3.795 stroke is a very safe stroker also without going to sleeves. I have one being built right now that is in the final stages. It will have a 10.5cr so it would be a direct replacement for any SRT-8.