should i use the a6 (rusty cylinder walls) or the z6 block (cracks in bottom)?
 

ok, so the a6 is in perfect shape other than the rust on the cylinder walls. the z6 cylinder walls are in great shape, but there is some cracking on the bottom. if honing will take the rust out....i think im gonna use the a6. are these cracks dangerous for boost? they look very small....but they are big enough to feel and cut you. lots of pics below...

d16a6---
https://i7.photobucket.com/albums/y2...erwalls010.jpg
https://i7.photobucket.com/albums/y2...erwalls009.jpg
https://i7.photobucket.com/albums/y2...erwalls008.jpg
https://i7.photobucket.com/albums/y2...erwalls007.jpg
https://i7.photobucket.com/albums/y2...erwalls005.jpg
https://i7.photobucket.com/albums/y2...erwalls003.jpg

d16z6---
https://i7.photobucket.com/albums/y2...erwalls011.jpg
https://i7.photobucket.com/albums/y2...erwalls012.jpg
https://i7.photobucket.com/albums/y2...erwalls013.jpg
https://i7.photobucket.com/albums/y2...erwalls016.jpg
https://i7.photobucket.com/albums/y2...erwalls017.jpg
https://i7.photobucket.com/albums/y2...erwalls019.jpg

thanks for your advice.

Re: should i use the a6 (bare) or the z6 block (bent rod)?
 

d16z6 last picture is oil on the cylinder walls, not rust. and the block will be notched for h-beams and filled if that makes a difference. thanks

Re: should i use the a6 (bare) or the z6 block (bent rod)?
 

those 'cracks' look to just be casting imperfections to me..... I've seen them before on our builds.... but just to be safe better see that in person to tell.

J

Re: should i use the a6 (bare) or the z6 block (bent rod)?
 

^^^ very true. You see them on honda tranny cases alot also. I wouldnt worry about it, its normal