Thread: L31R complete or ZZ4 short block
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Old 02-15-2019, 04:09 PM   #8
toolboxchev
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Re: L31R complete or ZZ4 short block
Quote:
Originally Posted by Warrens69GMC View Post
12cc dished pistone

normally the zz motors are approx .020 in the hole
Yep, found the spec that say the ZZ4 block is not ZERO decked. Thanks Warren!
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