C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Crankshafts! L98 vs LT1?

Old 11-24-2007, 02:04 AM
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Strike3
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Default Crankshafts! L98 vs LT1?

I'm shoping for a new crank to rebuild my 1995 LT1 engine to 383. I find there is very little advertised specifically for the LT1. I was beginning to assume that 87 & up L98's and LT1's used the same crank but today I came across several cranks of 3.75 stroke and 1 pc rear seal which stated (Not for LT1). Are there differences in the snout? Are the cranks generally interchangeable with a few "exceptions"? What should I be looking for to determine if a crank is suitable for an LT1?
Old 11-24-2007, 03:05 AM
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rodj
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I was of same option ;
1pce or 2 pce seal difference only but the LT1's have that weird 2 part balancer setup so maybe snout is different on them
Old 11-24-2007, 08:55 AM
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Corvette Kid
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If you're building from scratch, there should be no difference. The stroker crank I use is not LT1 specific. I even changed the rotating ***'y to full neutral balance when building my current shortblock. The snouts are all the same and even the stock LT1 crank has a provision for a keyed hub, it's just not used with the factory damper set-up.
Old 11-24-2007, 09:48 AM
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aboatguy
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Originally Posted by Corvette Kid
If you're building from scratch, there should be no difference. The stroker crank I use is not LT1 specific. I even changed the rotating ***'y to full neutral balance when building my current shortblock. The snouts are all the same and even the stock LT1 crank has a provision for a keyed hub, it's just not used with the factory damper set-up.
A One piece seal crank should fit your LT1.
Old 11-24-2007, 11:55 AM
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etteroc27
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I am doing the same with my 95. I just bought an Eagle crank from CNC-Motorsports. Go to their site and look up Eagle crankshaft # 10352375057E. It is a 3.75 stroke crank listed for the Lt1.
I bought a complete stroker kit from these people a couple of years ago, and was happy with their service.

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