69 z28 - Team Camaro Tech
Tech 2001 General Tech questions from 2001
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post #1 of 4 (permalink) Old Nov 7th, 01, 01:12 PM Thread Starter
 
Join Date: Nov 2001
Location: texas
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I have a 3970110 that has been decked and the #'s are gone. How else can I verify that I have a dz block? Thanks!
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post #2 of 4 (permalink) Old Nov 7th, 01, 01:46 PM
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frank
 
Join Date: Dec 2000
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The number should be 3970010. That block was used after the end of April, 1969 onwards. This being the case the plant(N or L) and the last six numbers of the cars VIN# should be stamped on the block next to or very close to where the oil filter mounts. As for the engine assembly date and plant where it originated, that will be lost.
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post #3 of 4 (permalink) Old Nov 7th, 01, 03:12 PM
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William
 
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Join Date: May 2000
Location: Waukesha WI
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There is no block casting unique to the Z/28. For 1969 there were several 4" bore 4 bolt main blocks used in production for either the 302, 300/350, 350/350.

A bare block stamped "HA" is no different than one stamped "DZ".
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post #4 of 4 (permalink) Old Nov 8th, 01, 06:23 AM
 
Join Date: Aug 2001
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If the motor has 4bolt main caps still have the stud for a tray to bolt to top of the stud that is a good sign but not a gaurantee
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