ZL1 suffix code on a 512 block?

[luzl78]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Unreal</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: luzl78</div><div class="ubbcode-body">Maybe an original zl1 owner blew up his original aluminum motor and told the dealership he wanted an iron block instead? </div></div>

Were that the case, wouldn't it be a CE coded block? </div></div>yes. I would think that would be the case. The above post says there was an original zl1 with the same stamping. Maybe there was a separate stamping procedure for these special motors?