Broken Crankshaft Count?

[2006 LBZ]

Look how heavy the harmonic dampener is hanging of the front of one of these cranks
Plus i think i read that part of the crank spans the furthest distance un supported. I think some shop came up with some sort of stabilizer to help the issue but not sure on that. I thought i read it on here but who knows lol

Curtis Halvorson has made one and it works damn good for support...... but harmonics still break the cranks even with a internally balanced motor (with a procharger though)

 

[blackdirtymax]

Curtis Halvorson has made one and it works damn good for support...... but harmonics still break the cranks even with a internally balanced motor (with a procharger though)

Lol the procharger and pulley you added to the crank snout is what broke the crank in that scenario . Lol


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Built motor , duel fuelers , 60's overs , gtx4202r

 

[2006 LBZ]

Lol the procharger and pulley you added to the crank snout is what broke the crank in that scenario . Lol


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I am here: http://tapatalk.com/map.php?x1qrsb
Built motor , duel fuelers , 60's overs , gtx4202r

Thanks tips.

 

[delong_1]

Add one more lb7 crank to the list.....

 

[hondarider552]

No way Nate.....

 

[juddski88]

And 1 lbz crank here...

 

[blk smoke lb7]

And 1 lbz crank here...

You loose a crank Tim?

 

[juddski88]

Yessir. It broke for good Saturday night on the street

 

[whitelmmmax]

Yessir. It broke for good Saturday night on the street

Sorry to hear.

 

[Evan@InglewoodTrans]

Yessir. It broke for good Saturday night on the street

We were just trying to go to the catalina whine mixer

 

[whitelmmmax]

F'n Catalina wine mixer

 

[blk smoke lb7]

Sorry to hear.

X2

 

[hondarider552]

Just a thought. Is the LML crank better in any way? I have heard that it is lighter, but not sure if you can fit a LML crank in a LB7-LMM block with same main caps? With LML pricing the way it is...

 

[juddski88]

I'm planning to do it Brian. LBZ block, LML crank....same .0030"-.0035" clearance that it had with Clevite HX bearings. no block fill, no girdle. ATI damper and ATS flywheel as of now.

 

[delong_1]

No way Nate.....

Yep, 3000 miles on the motor and about 6 passes

 

[juddski88]

yep. 1500 miles on mine and 12 passes (3 at 108mph, 3 at 116mph, and 6 at~128mph) also a trailer tow 1/8 mile and 3 dyno pulls overfueled at ~900hp.

 

[Dave L Weaver]

Yep, 3000 miles on the motor and about 6 passes

Sorry to hear man....and i thought it was bad only having 20k miles! Were u running stock crank and how many miles on the crank?

 

[delong_1]

Sorry to hear man....and i thought it was bad only having 20k miles! Were u running stock crank and how many miles on the crank?

the crank had probably 120k on it, it was from my original motor.

 

[S Phinney]

I'm planning to do it Brian. LBZ block, LML crank....same .0030"-.0035" clearance that it had with Clevite HX bearings. no block fill, no girdle. ATI damper and ATS flywheel as of now.

Have you tried block fill before?

Sent from my DROID RAZR using Tapatalk 2

 

[delong_1]

Have you tried block fill before?

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i know you were not asking me but mine had a half fill, billet caps, and a girdle fwiw.