416 LS3 Build - Part 2 - I Love You Bo :)

[AdamantiumSilvr]

Glad ta see its comin along well. Ur pretty much talkin in another language thou, lol! Keep us posted, maybe I can learn a bit. Since um so illiterate when it comes to engine talk n #'ers.

[Martin0660]

We were real happy with the Diamonds.

Good to know, seems it must only be the 2.3 "off the shelf" piston with this issue. Guys that had them made custom were real happy, off the shelf guys not so much ;)

Nice build, keep the details coming

[thedak]

These are a -2cc flat top piston made for L92 and LS3 heads.

[biminiLX]

Subscribing for results, good shit so far.
-J

[Shorty429]

Looking good. Can't wait to see this thing done!

[somethingclever]

I could easily do a .001+ bearing an be done.

I 100% want my bearings coated.

The main bores were 2.752" Spec is 2.750"

Redoing the align hone will give me a little more crush as well.

The coating thickness is only ~.00025"

So the main bores are .002 too big.

You measured .0025 clearance.

The bearing coating is .00025 thick.

.0025(currently)-.001(to bring back to spec)-.00025(coating) = .00125 clearance

[bgblockelcamino]

looking good can't wait to see the results

[SonofaBish]

Very nice.... good luck finishing it up!

[thedak]

So the main bores are .002 too big.

You measured bearing .0025 clearance.

The bearing coating is .00025 thick.

.0025(currently)-.001(to bring back to spec)-.00025(coating) = .00125 clearance

You are on a different page...

Just because the main bore is reduced by .001 doesn't mean you bearing clearance will be reduced the same amount.

It may not change the bearing clearance at all. The bearing is just going to have more crush on it.

Not to mention the coating will actually reduce the bearing clearance by twice that amount as both the top and bottom bearing are coated.

[somethingclever]

You are on a different page...

.

yep...late-night mental block.


I guess you'll have to get the align hone redone and then see what the actual numbers are.....

I don't think you're going to get away with reducing the crank journal in the block by .002 and not changing the clearance, unless there is currently no bearing crush at all.

[thedak]

yep...late-night mental block.


I guess you'll have to get the align hone redone and then see what the actual numbers are.....

I don't think you're going to get away with reducing the crank journal in the block by .002 and not changing the clearance, unless there is currently no bearing crush at all.

Yeah,

I hear ya and understand what you are saying.

We will see what we got and go from there.

[scott5]

awesome build.. glad to see this came back..

good luck and keep us posted.. Still sticking na?

[thedak]

Got the intake set up and ready to go.

FAST 57 pounders were used.

[thedak]

Still sticking na?

Yes,

I am keeping the GTO NA.

[scott5]

That intake is sick!!

F.A.S.T are easily the best intakes on the market for a lsx car

[thedak]

Got the block back after decking and re-checking the main bearing bores:



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Had to do a little clearancing where the stroker crank brings the rod bolt close to the bottom of the cylinder:



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Time to adjust the end gaps of the rings


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[thedak]

Specified end gaps:


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Since the bore is 4.0635, we'll set the gap for the tops rings at 4.0635 x .0045 = .018"


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Using a ring seating tool to seat the top rings in the cylinders:


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The feeler gauge will not pass. The gaps are smaller than .018":


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[thedak]

End gap adjusted, the feeler gauge now passes:



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The 2nd rings were adjusted in the same manner for .014" end gap.

The oil ring rails were all checked to assure there was at least .015" end gap

[bgblockelcamino]

awesome. keep up the good work can't wait to see the results of this

[zxgto06]

lookin good dak.