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

**thedak** · 02-11-2010, 06:04 PM

Got everything back from the machine shop.

Had the Diamond Pistons coated by Calico

CT-2 Thermal Barrier Coating - Piston tops

CT-3 Dry Film Lubricating Coating - Piston Skirts

Bearings are also coated by Calico

CT-1 Dry Film Lubricating Coating - Bearings

Mic the pistons and check piston/cylinder clearance.

The piston manufacturer (Diamonds, in this instance) specifies precisely where you are to measure piston diameter, and also the required piston/cylinder clearance.

Here we are measuring .850 down from the oil ring on the skirt, 90 degrees from the pin:

All 8 pistons came in at 4.058

.0055, just what Diamond specified

**thedak** · 02-11-2010, 06:08 PM

Checking the size of the main bearing bores:

Upper halves of main bearings in place

Main caps back on with other halves of main bearings:

**thedak** · 02-11-2010, 06:09 PM

mic'ing the crank

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it was dead on @2.559"

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checking the main bores, bearings in place, caps torqued, with dial bore gauge

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close to .0025, a little loose

Machine shop is redoing the align hone and the bearings are out to coating.

Looking for a main bearing clearance of .0015" - .0018"

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**thedak** · 02-11-2010, 06:16 PM

Mic'd all the rod journals of the Callies crank:

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2.0991.......ALL of them...this is a very nice piece

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Checked the big ends of the Callies rods. Very nice. All within spec. Actually they were all the very same dimension. I am very impressed with this Callies stuff.

Next I checked 2 of the rods, torqued, with rod bearings in them, with the dial bore indicator. Appears we have .0017 rod bearing clearance. I took the mic that I used to mic the rod journals and these 2 rods to the machinist to double check. Yep, .0017 rod bearing clearance.

Decided to check them with Plastigage as well

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**thedak** · 02-11-2010, 06:18 PM

Bridge and dial indicator to check the deck height(s):

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Block will be relieved slightly at the bottom of each cylinder where the rod bolt comes close:

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So the block is back at the machine shop now for decking. We are shooting for an average of about -.011.

With a compressed head gasket thickness of .051, that will put the quench at around .040.

SCR - 11.56:1

**wick** · 02-11-2010, 07:12 PM

Nice work there. Great way to be thorough.

When are you looking to having this thing running?

**thedak** · 02-11-2010, 07:20 PM

Sometime in March

**wick** · 02-11-2010, 07:23 PM

Good deal. Whatcha looking to get out of it? Trying to start mine by my birthday next week.

**mr4teth** · 02-11-2010, 07:24 PM

I can't wait to hear all about this "GM" build at my next dentist appointment! How appropriate, mouth pain and GM motor talk!! ...

J/K looks pretty interesting. Maybe I'll get an invite from the Dr to watch while you guys build??

**wick** · 02-11-2010, 07:26 PM

Figured somebody would start the GM shit again. Who cares. Its an interesting build. Lets keep this one on topic and clean. Please!!!!!!!!

**mr4teth** · 02-11-2010, 07:28 PM

Originally Posted by wick

Figured somebody would start the GM shit again. Who cares. Its an interesting build. Lets keep this one on topic and clean. Please!!!!!!!!

Dude relax he knows I'm only busting his chops ...

**wick** · 02-11-2010, 07:35 PM

Originally Posted by mr4teth

Dude relax he knows I'm only busting his chops ...

Yeah, thats what happened in the last thread that became closed. Remember?

**mr4teth** · 02-11-2010, 07:43 PM

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

With a thread topic like this do you think my inside joke with LS2GTO is going to spark the "heat"? ... NO

**wick** · 02-11-2010, 07:45 PM

Give it time, I'm done.

**thedak** · 02-11-2010, 07:47 PM

Originally Posted by mr4teth

Maybe I'll get an invite from the Dr to watch while you guys build??

Gregg knows his shit.

I haved learned a lot from him and this build.

BtW,

I'll let you hold the work light.

**mr4teth** · 02-11-2010, 07:56 PM

Originally Posted by LS2GTO

Gregg knows his shit.

I haved learned a lot from him and this build.

BtW,

I'll let you hold the work light.

That's probably beyond my skill level. I'm pretty good at picking up dropped tools, bolts, nuts and holding beers .... that's about it!

Yep Gregg is like Rain-man when it comes to motors! Half the time he's talking I'm completely lost .. not hard to do BTW.

**somethingclever** · 02-11-2010, 08:15 PM

Originally Posted by LS2GTO

mic'ing the crank

it was dead on @2.559"

checking the main bores, bearings in place, caps torqued, with dial bore gauge

close to .0025, a little loose

Machine shop is redoing the align hone and the bearings are out to coating.

Looking for a main bearing clearance of .0015" - .0018"

Why not get the bearings coated and THEN check the clearance to see where you're at......instead of getting the bearings coated AND the block cut at the same time.

Or...

Get some .001 oversize brgs to bring you to .0015 and call it a day.

**thedak** · 02-11-2010, 08:38 PM

Originally Posted by somethingclever

Why not get the bearings coated and THEN check the clearance to see where you're at...

instead of getting the bearings coated AND the block cut at the same time.

Or...

Get some .001 oversize brgs to bring you to .0015 and call it a day.

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"

**Martin0660** · 02-11-2010, 08:45 PM

Originally Posted by LS2GTO

Bridge and dial indicator to check the deck height(s)

I ASSume by the marks on the deck, you have checked all 8 holes, 4 places for deck height off the piston? If i'm reading the number right they look pretty close. Why I ask, several of the 2.3 crowd have had issues with Diamond pistons being up to .010 out of parallel to the deck and Diamond reports that as their tolerance. Your look close ...

**thedak** · 02-11-2010, 08:50 PM

Originally Posted by Martin0660

I ASSume by the marks on the deck, you have checked all 8 holes, 4 places for deck height off the piston? If i'm reading the number right they look pretty close. Why I ask, several of the 2.3 crowd have had issues with Diamond pistons being up to .010 out of parallel to the deck and Diamond reports that as their tolerance. Your look close ...

We were real happy with the Diamonds.

The only piston that was slightly different was the reluctor wheel piston.

It sat in the hole about .002" more than the rest. Not to bad.

The assembly and block was fairly square as well.

Decking .010 off one side and .008 off the other.