LS1 Crank fit 6.0???
02-06-2009, 03:21 AM
#1
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LS1 Crank fit 6.0??? I have an issue... I have a 01 or Older 6.0 LQ9 but my Crank is too long and keeping me from mount my tranny right. I have heard to just swap out the crank and walla it should work fine. But deos the crank need to be from a 6.0 or would any LS1 or Vortec fit it too? Thanks guys
Last edited by frankmarroquin; 02-06-2009 at 03:21 AM. Reason: forgot word
02-06-2009, 10:42 AM
#5
The 6.0L, 5.7L and 5.3L all use the same crankshaft, they differ only with balancing, so if you use a 5.7L crank in a 6.0L short block you will need to get the rotating assembly rebalanced. This will ensure the crankshaft counter weights are balanced to the pistons and rods correctly, otherwise you will have an inbalance issue which could ruin your engine.
Are you sure you have an LQ9? Only the 1999-2000 LQ4 had the longer crankshaft. This was for it to mate up to the 4L80E. When the LQ9 was introduced in 2001, they mated it to the 4L60E. GM switched the crankshaft to the standard Gen3 unit and used a spacer on LQ4 destined to be used with 4L80Es.
Are you sure you have an LQ9? Only the 1999-2000 LQ4 had the longer crankshaft. This was for it to mate up to the 4L80E. When the LQ9 was introduced in 2001, they mated it to the 4L60E. GM switched the crankshaft to the standard Gen3 unit and used a spacer on LQ4 destined to be used with 4L80Es.
02-06-2009, 06:53 PM
#6
The 6.0L, 5.7L and 5.3L all use the same crankshaft, they differ only with balancing, so if you use a 5.7L crank in a 6.0L short block you will need to get the rotating assembly rebalanced. This will ensure the crankshaft counter weights are balanced to the pistons and rods correctly, otherwise you will have an inbalance issue which could ruin your engine.
Are you sure you have an LQ9? Only the 1999-2000 LQ4 had the longer crankshaft. This was for it to mate up to the 4L80E. When the LQ9 was introduced in 2001, they mated it to the 4L60E. GM switched the crankshaft to the standard Gen3 unit and used a spacer on LQ4 destined to be used with 4L80Es.
Are you sure you have an LQ9? Only the 1999-2000 LQ4 had the longer crankshaft. This was for it to mate up to the 4L80E. When the LQ9 was introduced in 2001, they mated it to the 4L60E. GM switched the crankshaft to the standard Gen3 unit and used a spacer on LQ4 destined to be used with 4L80Es.
