Ws6Dnero

iTrader: (23)

garygnu

whats the bore measurement after honing ?what grit of stone did you use ?

wildcamaro

iTrader: (15)

Yea what grit flex hone did you use? I'm assuming you used a flex ball hone?

Anyway it looks good! Do you have any before pictures of the cylinder?

msydow

those stones dont generally take out a lot but you do have to be careful if you're going to be using stock pistons.. looks good.

Ws6Dnero

iTrader: (23)

Ill let a buddy of mines measure the bores for me sometime this week. I used a 240 grit as recommended for hasting rings. I deleted the old pics i had of the cylinder walls but the crosshatches where highly visible and the motor ran fine. No blowby and didnt burn oil. I wanted to replace cam bearings and it ultimately led to this because i couldnt leave well enough alone lol. The block had around 125k on it. I got another set of 04 ls6 rods and pistons with roun 1500 miles on em that i will be sticking in.

butler

Looks like scratches.:-)

Ws6Dnero

iTrader: (23)

Lol!!

wildcamaro

iTrader: (15)

Cool looks good to go, good luck

Ws6Dnero

iTrader: (23)

are the hasting stock bore rings file to fit??

Tony Mamo @ AFR

iTrader: (13)

Modern rings dont usually require that rough a finish any more.....they are "rounder" for lack of a better word and seal up quickly without the need of a rougher finish which creates more drag and more metal transfer everywhere on break in as the new rings knock the peaks (and folds) of the metal from the cross hatch/hone (also creating faster erosion of the rings over time). A 400 stone would have been more desirable in my opinion from the standpoint of performance, cleaner break in, and longer ring life.....320 if you prefer a courser finish perhaps.

I bet when you turn that engine over when the short block is assembled it will make quite a bit of noise from the cylinder finish and rings riding on top of that.

It will probably run fine....but in the future (and for the benefit of others reading) you might consider a finer grit stone to break the glaze and seat a new set of rings.....the real key are round bores with minimal taper.

Good luck with the build....

Here is a not so great shot of my 454 (not so great from the standpoint of its hard to see a close up shot of the wall finish).....but its obvious the cylinder wall is almost glowing in comparison.....this is even finer than a 600 finish but I have thin rings that seat quickly and are extremely round and lapped perfectly flat as well. A finish in between yours and this build is probably the happy medium for the average hot rodder running a typical 1.5 mm thick ring set because if the machine work isn't spot (regarding a perfectly round hole) a rougher hone than featured here is slightly more desirable.



Hope this helps.....

-Tony

Ws6Dnero

iTrader: (23)

What piston ring compressor do most people use for the stock bore??

garygnu

what oil will you run for brake-in ?

Ws6Dnero

iTrader: (23)

probably just regular ole 10w 30 then switch to mobil 1

ls1 1990 VN

Get a decent run in oil....then change to a good mineral oil only...don't use synthetic for a few thousand miles.

redbird555

iTrader: (14)

looks good man i do agree with tony though i personally i like to go a little smoother with the stones. so if you if you feel confident enough to give it another go i might step it down but the pattern looks good!

Ws6Dnero

iTrader: (23)

So should i re-hone with the finer grit?

S10xGN

iTrader: (11)

Why not go to the source? Check with whoever makes the ring set you plan on using...

Ws6Dnero

iTrader: (23)

Hasting recommends 240 grit for the rings so im guessing i should be fine.

firemech21

iTrader: (9)

I will check tonight when I get home, but I believe I used a 320 grit hone on my block. But I think that was what GM recommended, I would follow your ring manufacturer's instructions.