robert19890412

I’ve done this 3 times I can’t figure out what I’m doing wrong. Clevite h bearings eagle crank 402 stroker kit.

.0015-.002

Jtm2085

iTrader: (1)

Following this thread. I am building a motor and tried using plastigage. Couldn't get any consistent results. I'm taking mine to my local shop to have them measure everything...

robert19890412

Crazy question, what’s the temperature while you are doing this?

Che70velle

iTrader: (6)

Excellant idea. If you don’t have the means to accurately measure it yourself, please have it done by a pro.

robert19890412

Yea so i have the means to accurately measure it myself.

I'm going to wait until it cools down and see if the temperature has something to do with it as it is supposed to be done at room temp.

Last 1

iTrader: (2)

If you block has been already a-line hone?it has to be a bent crankshaft.

robert19890412

block is brand new
Edit: everything is brand new

HighAltitude

Looks like your within 0.0005 on your measurements. That is right around the accuracy limit of plastiguage. I would say you are a little tight.

1FastBrick

iTrader: (16)

You stated this is a new block. What Block are you using?

It appears there is some rust or debris on the registers of the caps and the block. If the caps and block look that way where the bearing sits, that will affect the clearances.

robert19890412

Its a gm ls2 block brand new.

Jtm2085

iTrader: (1)

80ish degrees. I just don't know about the accuracy of plastigage

01CamaroSSTx

iTrader: (3)

Plasti squish readings can vary. Was this on a dry surface or lightly oiled surface?

Last 1

iTrader: (2)

You could put 1and #5 bearing in the block if u have a dial indicator and check run out on your crank.and just because it new means nothing.im dealing new RHS block that supposed been honed to 4.165 guess what.wiseco was right on the money 4.161

FormulaBoat

iTrader: (1)

New should, but does not mean, correct.

Have all the bearing ring caps on the correct way? I just learned there is a little more to this than I thought.

Also, some people use a seating torque for the main caps at first, break them loose, then torque to value.

robert19890412

It is lightly oiled with degreaser to clean it off

robert19890412

Ok changed several things and re did it twice. Got a new degree torque tool and on the first one I used the same plasti gauge brand on the second one I used a different brand. The 2nd one I rotated the crank 180 degrees ish.

robert19890412

Actually looking at 1B-5B they all kinda look around .0015 give or take .0002 or so.

01CamaroSSTx

iTrader: (3)

Have you installed the crank yet to see if you could turn it by hand and finger?

robert19890412

What do you mean just torque it down and see if it turns?

robert19890412

Check run out on thrush main