Thinnest (SAFE) cylinder thickness

[swinger340]

In process of building a 360. It had to be bored .060 (4.060) to clean it up nice. What is a safe cylinder thickness. Machine shop says it is fine with .170-.200 for the most part with a couple thin spots of .150 on the non thrust side. Should this be used for a stroker or should I look for a new foundation? Looking to be a 10:1 414 with a solid roller cam

 

[moper]

What is the horsepower expectation?

 

[swinger340]

What is the horsepower expectation?

Shooting for 500+/- I can always swap the build to one of my 340 blocks. I was hoping this particular 72 360 was going to clean up @ less and check out thicker, but it is what it is. Once machine work was started I was obligated to finish.

 

[moper]

I think for 500 you're ok. If you expect to surpass that I'd find a thicker one. My own limits are for 500 or less: major thrust thicker than .180, minor thicker than .150, pin axis thicker than .100. For 500+ I want to see major thrust .200+, minor .180, pin axis .120. Generally - the higher horsepower levels may need 1 or 2 sleeves to meet that. It is rare that a factory block is cast consistenly that well. I'll add the sonic testing should have at least 20 spot tests and preferably 4 "continuous sweep" tests per cylinder. One test in each direction doesn't tell you squat.