blacksi

iTrader: (3)

Trying to get bearings to fit my crank. Does anyone know what the stock main journal size is?

RARON455

iTrader: (35)

according to my GM service manual,,,
crankshaft connecting rod journal diameter 2.0987 in. (production)
crankshaft main journal diameter 2.558-2.559 in. (production)

manual calls for
.0006-.00248 connecting rod bearing clearance (production)
.0007-.00212 crankshaft bearing clearance (production)

Hope this helps

csmc711

iTrader: (4)

4 years later it did for me, thanks!

Blazeracer

iTrader: (2)

^^^^ One year after this guy, it did for me too. Thanks. These kinda threads are great. Short, sweet and to the point.

Know It All

I guess you guys missed the sticky at the top? The one with all the clearances and dimensions...

csmc711

iTrader: (4)

All board members bitch to use google and search the answer, well, google gave me this, so, you need to go yell at google, Mr KNOW IT ALL!!

Know It All

Bruh...did you forget to take your meds or something? Yell at Google? I didn't say anything about using Google. Just below the button you press to start a new thread is a sticky titled:

LS1/LS6 Engine Dimensions & Clearances

You don't even need to use Google, or start and even bump a thread like this, when the answer is permanently posted on the first page...but obviously some people are not that attentive...

csmc711

iTrader: (4)

I was looking for journal size in google and this thread came up first in the search. Apparently you dont know how google works, you should check it out sometime because you dont "know it all".

And, still again, this thread helped me out, thanks raron.

Know It All

Are you really this dumb? Or are you just bumping this thread to troll?

When I search LS main journal size, the sticky I reference is THE NEXT thread to come up. So my point still stands, this was a dumb thread to start since the answer is stickied to the first page of this section.

Bobby Kelii

I did the exact same thing, google stock lm7 5.3 connecting rod bores and widths and this was one of the suggested links. Thanks to the original poster 🤙🏽