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Difference between LQ4 and LQ9??????

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Old Feb 6, 2006 | 09:43 AM
  #1  
Black-Syde
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Default Difference between LQ4 and LQ9??????
are the pistons the only difference? Are rods and crank of different (cast/forged)??
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Old Feb 6, 2006 | 11:27 AM
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Rods are different too, the LQ9 rods are beefier. Crank is the same I believe.
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Old Feb 6, 2006 | 06:02 PM
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Originally Posted by thunder550
Rods are different too, the LQ9 rods are beefier. Crank is the same I believe.
Ditto on above. Heads same, block same, intake, crank, cam. LQ9 has flat tops versus the LQ4 dished slugs. LQ9 also has bigger bushed rods.
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Old Feb 6, 2006 | 06:04 PM
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i believe the cranks are balanced differently due to the difference in rod and piston weights, although i've swapped them around with no issues(yet ).
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Old Feb 7, 2006 | 10:12 AM
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What's the CR difference between the 2??
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Old Feb 7, 2006 | 11:26 AM
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Originally Posted by Silverado Desperado
What's the CR difference between the 2??
I think it is 9.4:1 vs 10.2:1 or so.
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