Two 360 builds idea for heads
Man I got kick in the nuts twice today on my 360 build. Well let me back track to yesterday where I spent most of the day off and on prepping my LA block for rebuild, I removed the cam bearings,de-burred all the casting flash on the block. Pressure washed the block for its first good cleaning, dried and blew out all passages with compressed air. Then a nice coat of WD40 to prevent flash rust. Today I opened up my re-ring kit that I bought from northern auto, nothing special standard kit. I pull out the crank bearings to install, so I can plasti-gauge the crank. Got all the uppers installed looking good until I notice the last bearing was damaged. Dammit!!! No big deal called northern they had clevites on the self and will send them out Monday. So I refocused and I was going to start with a quick hone to deglaze the cylinders, which had cross hatch from previous rebuild but could use just a tad of cleaning up. As I was wiping the cylinders down with a clean rag, I found a small pin hole in the number 1 cylinder. It looks like it was exposed by the last rebuild when they went .030” over, a tiny air pocket I presume. It’s not rust through and it’s very small, I guess they ran it like that. But I can’t seem to get over it so it needs to either be bored over or re-sleeved. I can’t see me running it like that. Wonder what a sleeve would cost I have the .030 over domed pistons that are balanced with the rest of the internals so I don’t won’t to overbore if I can help it. I was so motivated to start building it too, took all the wind out my sails that and getting over covid this week has been a real drag. Anyway I will carry on with my woes.
Man I got kick in the nuts twice today on my 360 build. Well let me back track to yesterday where I spent most of the day off and on prepping my LA block for rebuild, I removed the cam bearings,de-burred all the casting flash on the block. Pressure washed the block for its first good cleaning, dried and blew out all passages with compressed air. Then a nice coat of WD40 to prevent flash rust. Today I opened up my re-ring kit that I bought from northern auto, nothing special standard kit. I pull out the crank bearings to install, so I can plasti-gauge the crank. Got all the uppers installed looking good until I notice the last bearing was damaged. Dammit!!! No big deal called northern they had clevites on the self and will send them out Monday. So I refocused and I was going to start with a quick hone to deglaze the cylinders, which had cross hatch from previous rebuild but could use just a tad of cleaning up. As I was wiping the cylinders down with a clean rag, I found a small pin hole in the number 1 cylinder. It looks like it was exposed by the last rebuild when they went .030” over, a tiny air pocket I presume. It’s not rust through and it’s very small, I guess they ran it like that. But I can’t seem to get over it so it needs to either be bored over or re-sleeved. I can’t see me running it like that. Wonder what a sleeve would cost I have the .030 over domed pistons that are balanced with the rest of the internals so I don’t won’t to overbore if I can help it. I was so motivated to start building it too, took all the wind out my sails that and getting over covid this week has been a real drag. Anyway I will carry on with my woes.
