BADASS of New England

An automobile club for the enthusiast who enjoys the last of the big GM cars. The rear wheel drive B and D bodys. Chevrolet Impala SS, Caprice, 9C1, Buick Roadmaster, Oldsmobile Custom Cruiser, Cadillac Fleetwood
 
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 Looking for lower milage crank shaft

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PostSubject: Looking for lower milage crank shaft   Mon Feb 22, 2010 6:41 pm

Any one got a good lower mile 92-95 LT1 crank shaft laying around? I have a 87k engine, but it needs a crank shaft.
And how much?
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mean ss

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PostSubject: Re: Looking for lower milage crank shaft   Mon Feb 22, 2010 6:45 pm

you can use any 1pc rear main seal crank from 87 up i believe
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PostSubject: Re: Looking for lower milage crank shaft   Mon Feb 22, 2010 6:47 pm

mean ss wrote:
you can use any 1pc rear main seal crank from 87 up
I am not sure. I thought they were the same.
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mean ss

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PostSubject: Re: Looking for lower milage crank shaft   Mon Feb 22, 2010 6:52 pm

they only thing that might be different is the keyway grooves


Last edited by mean ss on Mon Feb 22, 2010 7:21 pm; edited 1 time in total
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Pooge

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PostSubject: Re: Looking for lower milage crank shaft   Mon Feb 22, 2010 6:54 pm

I've got a complete short block from a 94 Camaro that I was trying to get $250 for. I could let it go for $150... I was told it was a good running motor when it was pulled by the previous owner, an acquaintance of mine. If you bought it and pulled it apart and found it to be shot I would refund your money on it since I trust you would not try to screw me...

Doug

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BowtieSS



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PostSubject: Re: Looking for lower milage crank shaft   Tue Feb 23, 2010 12:46 pm

mean ss wrote:
you can use any 1pc rear main seal crank from 87 up i believe
They are not the same, Yes it will go in there and run but it is not properly balanced. The Pistons in a LT1 are a light weight piston. I read some where that a 305 crank is the closest in balance to a LT1 crank shaft. Even if you replace your crank with one from another LT1 engine, it still needs to be balanced with your pistons, rods and, flywheel. I'm currently rebuilding my original engine with 56k, I'm into it for $1,000 in machine work alone.

I do still have an engine under my bench that I'n not really doing anything with, your welcomed to stop by and take a look at that crank and see if it's useable.
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bammax

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PostSubject: Re: Looking for lower milage crank shaft   Tue Feb 23, 2010 3:55 pm

Put an LT1 crank in the L99 and make yourself a gen2 305. That's what I was going to do Wink
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toomanytoyz
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PostSubject: Re: Looking for lower milage crank shaft   Tue Feb 23, 2010 5:43 pm

I didn't balance my caddy's rotating assembly and had a couple "borrowed" pistons and it ran fine.

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Tomz9C1

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PostSubject: Re: Looking for lower milage crank shaft   Wed Feb 24, 2010 5:17 am

bammax wrote:
Put an LT1 crank in the L99 and make yourself a gen2 305. That's what I was going to do Wink
I thought the LT1 & L99 crankshafts were identical?
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bammax

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PostSubject: Re: Looking for lower milage crank shaft   Wed Feb 24, 2010 1:50 pm

Nope. L99 got a 3" stroke while the LT1 got a 3.48"

The LT1 crank with LT1 rods and (from what I've been told) old 305 pistons would make an L99 into a 305 (an LT9 I guess scratch )
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Tomz9C1

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PostSubject: Re: Looking for lower milage crank shaft   Wed Feb 24, 2010 9:33 pm

Now I'm scratch
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PostSubject: Re: Looking for lower milage crank shaft   Wed Feb 24, 2010 9:38 pm

Tomz9C1 wrote:
bammax wrote:
Put an LT1 crank in the L99 and make yourself a gen2 305. That's what I was going to do Wink
I thought the LT1 & L99 crankshafts were identical?
http://www.malcams.com/legacy/misc/autorebuild.htm
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Tomz9C1

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PostSubject: Re: Looking for lower milage crank shaft   Thu Feb 25, 2010 5:11 am

Thanks for the link Billy, now I'm edumecated. lol.
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V8Killer

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PostSubject: Re: Looking for lower milage crank shaft   Tue Mar 02, 2010 5:42 pm

I have a nice one out of a 68k mile f-car. What do you want to spend?
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