LT1 Re-Ring Question

[1995z28]

I recently bought a used LT1 Short Block ONLY with Roughly 70,xxx mile, and it spings freely and the cylinders are not scratched at all it looks really really good and clean with no sludge build up or anything like that, my question is... If i buy a re ring kit and take it apart and build it back up do i have to do any machine work to the block or crankshaft, if there is nothing wrong with them or what can i do to it... do i just slightly hone the cylinder, and what about the crank, or should i just install it like that, i just dont want any surprises when i turn it on for the fist time. And i will be changing the Freeze Plugs and Cam bearing regardless of what i do. Please Any help is greatly appreciated. Oh and is for a 95 Z... and any suggestions of where i should buy the kit...

[94Blackbird]

if everything looks good, I'd say just put the new rings and new bearings in and let it ride lol. I have a 140xxx block that still has the factory cross hatching in it, and that's pretty much what I plan to do.

[1995z28]

have u looked in to a good priced re-ring kit 94Blackbird?

[94Blackbird]

Lets see, I paid about 50 bucks for the main bearings, 35 bucks for the rod bearings, it'll be 30 bucks for the cam bearings, 160 for the rings (all the prices are advance auto parts prices where I bought all that stuff)
I'm also running main studs in my engine, which ran me roughly 60 or 70 bucks (can't remember exactly how much I paid)
Plus all the gaskets, which oil pan and timing cover gasket are pretty cheap.

So roughly 350 plus gaskets give or take depending on if you want to reuse the stock main bolts (can be done, but no usually recommended as far as I have heard)

[1995z28]

i heard it would also be a good idea to DEGLAZE the cylinders, what does that mean and how do i do that i heard it similar to honing but with out the stones or maybe just fine stones, have u heard anything of that sort?

[94Blackbird]

sounds like it's just roughing up the cylinder bore a little bit. From what I've read there are specific tools out there for that. I imagine google to be your friend on that one if someone else doesn't chime in first, I haven't really looked into it yet as I'm still gathering parts.

[95ImpySS]

IMO I would stack some cash just incase you need to send it to the machien shop. Could need to be punched out if the cyl bores are too worn. Or may need to have the crank turned etc.

We use a ball hone at work.

http://www.bayarearidersforum.com/forums/images/threads/000/101/131/1460647-dsc01221.jpg

Use it to scuff up the cyl walls. So your new rings will seat. Then measure the bores and ring gaps.

You will need a cam bearing tool to push the bearings in and out.

http://www.etoolcart.com/ProductImages/pictures/CBT18-L.jpg

Use a plastigage to check your main bearing clearances. Will help you decide if you need over sized bearings.

[BIG CAT]

i would check cyl wall clearance first. if it ok use a ball type hone. for the crank check the bearing that come out of it. look for any groves or singes of wearing through the babit. you could more than likely get away with having the crank polished. and always check your clearances even if you have to use plasti gauge.

[BLK95-Z]

The factory rings must be easy on the cylinders. My crank was wore almost completely out of spec but the cylinder/rings were still decent at 110k

[94Blackbird]

I think it depends on the application too. I have 140xxx motor I pulled apart and everything was perfect. It came out of a station wagon though, so I can't imagine it was abused during those miles either.

[1995z28]

I havent taken my engine so it can be taken a look at or to get the.cam bearings swaped out but I saw some sets of piston rings in sizes .001 and .002 and . 0005 so I gues I can just have my enfine honed and amd buy the rings if it comes down to that but im pretty sure I should be able to buy stock rings. Well have any of u guys ever seen or used these rings sizes befor?

[gregrob]

You will do more harm than good if you disassemble the engine to replace the rings. You realize that's nit happening without pulling the crank, right?

If you're on here asking these questions, you have no business pulling it apart.

Its s 70k mile engine, RUN IT. Do a compression test if you're paranoid.

You might think im being a dick but I have a friend just like you who ALWAYS fucks himself with these hair brained ideas and tearing into shit without knowing what he's doing.

NO ONE can answer your questions accurately. Its not possible without having the engine in front of them and measuring.

Leave it alone or let someone qualified build it, fully.