6.0L crank Question
You need to watch for the flange on the back of the crank. Some truck cranks have a thicker flange that will cause alignment issues with starter, converter... It is easy to see the differance. One is about a 1/2" wider.
The 5.3, 5.7, and 6.0 share the same crank (same casting numbers), only the 6.0 isn't drilled. It's probably a lb or so heavier-the single difference.
EDIT: You nailed it before I clicked post
EDIT: You nailed it before I clicked post
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Not to mention that that lb is in the center of the crank. Is it worth the swap if the motor is out of the car? This will depend if you are going with Forged parts. If you get parts that weight more that stock than ya i would say it is worth it. Sence it could save you $200 at the mechine shop.
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Keep in mind, as Bryan @ LME mentioned -- some 6L cranks have the flexplate mounting flange sitting farther back than the 5.7L cranks, to fit the 4L80e... You'd need the appropriate starter to match, and it won't fit with your 4L60e. Its perfect for folks going with a TH400 or 4L80e though.
