Broken Crankshaft Count?

Please pick the one that you had break


  • Total voters
    185

jkholder09

New member
Jan 8, 2012
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from the gm parts catalog
lml bearing part number 19256553
lmm bearing kit part number 97386927
both are for bearing marked black
to clarify bearings come in different colors in order to get proper oil clearance.
There are marks near the fuel pump on the block to help determine this

there may also be other reasons for the colors and other procedures top determine bearing color, this is how i have done it
 

juddski88

Freedom Diesel
Jul 1, 2008
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Chesterfield, Mass.
just so you are aware for the next time you are ordering GM parts, the 2011+ part numbers are structured completely differently than earlier part numbers. they were not integrated.
 

coker6303

Keep Calm and Chive On!!
Aug 6, 2009
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This Justin guy has wrecked a few threads lately... Sounds like he might be learning a few things but his communication and presentation skills are all out of wack :confused:
 

Dallas S

Active member
Jun 17, 2009
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Alberta
Broke another crank. Lly in a lbz build. Broke at rod 1/snout. Dilipped lb7 piston also shattered the skirt off(rod one)Carrillo rod still had pin in it but skirt, clips, and oil ring are all in the oilpan. Haven't pulled heads to see if cracked. 40k miles of hard street. 10k were pulling 9-11k lbs. snapped 800miles from home pulling tow hauler. Sounded like piston slap at first. But really don't know what let go first.

475/lbz vvt, dual stock cp3, 60%, 2800us ect. Ccsb, 6" lift, 325 on 18's.
 

duratothemax

<--- slippery roads
Aug 28, 2006
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Broke another crank. Lly in a lbz build. Broke at rod 1/snout. Dilipped lb7 piston also shattered the skirt off(rod one)Carrillo rod still had pin in it but skirt, clips, and oil ring are all in the oilpan. Haven't pulled heads to see if cracked. 40k miles of hard street. 10k were pulling 9-11k lbs. snapped 800miles from home pulling tow hauler. Sounded like piston slap at first. But really don't know what let go first.

475/lbz vvt, dual stock cp3, 60%, 2800us ect. Ccsb, 6" lift, 325 on 18's.

LLY as in 04-05 LLY or 06 LLY?

sorry to hear. :(
 

Dallas S

Active member
Jun 17, 2009
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Alberta
LLY as in 04-05 LLY or 06 LLY?

sorry to hear. :(

Real lly, 04.5. Was a 04.5 block, crank, cam. All keyed. Main studs. The original 06 "lly" shortblock got tossed when the crank pin sheard.

Now running a completely stock 07 longblock. Running 2600us,27*, but much more conservative down low. Just something to keep me going while another motor gets built. Hoping my Carrillos are still fine.

If one rod is finished, what are my options?
 

TQMONSTR

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Nov 19, 2009
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Real lly, 04.5. Was a 04.5 block, crank, cam. All keyed. Main studs. The original 06 "lly" shortblock got tossed when the crank pin sheard.

Now running a completely stock 07 longblock. Running 2600us,27*, but much more conservative down low. Just something to keep me going while another motor gets built. Hoping my Carrillos are still fine.

If one rod is finished, what are my options?

I don't know, stop building trucks maybe?
 

boominator

Member
Jan 31, 2012
168
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MI
there was crank talk in of season pulling mods so it made me think of this thread
the changed firing order cams out witch cylinders do the change?
because i was doing some figuring and i think that changing cylinders 3 and 8 would give us the 15426378 ford v8 firing order. remembering of course that ford orders the cylinders different
 

JoshH

Daggum farm truck
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Feb 14, 2007
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there was crank talk in of season pulling mods so it made me think of this thread
the changed firing order cams out witch cylinders do the change?
because i was doing some figuring and i think that changing cylinders 3 and 8 would give us the 15426378 ford v8 firing order. remembering of course that ford orders the cylinders different
You can't do that without a different crank.
 

jkholder09

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Jan 8, 2012
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there was crank talk in of season pulling mods so it made me think of this thread
the changed firing order cams out witch cylinders do the change?
because i was doing some figuring and i think that changing cylinders 3 and 8 would give us the 15426378 ford v8 firing order. remembering of course that ford orders the cylinders different

Josh was reading this one where 3 and 8 are no longer movibg together so if you read this yes different crank
Maybe the way you have it written now may work

Rember the cylibders are flipped side to side vs traditional chevy here on dmax