Re: Known ZL1?
On my ZL-1 block, I had to do some lifterbore repairs like that as well. Seems that the shop said there was evidence of core-shift for this 052 casting, and with high lift cam and heavy springs, they said it wore over time on the side of the lifter bores. My repair also made it so my bore are bushed and set up for .903 Jesels. Alot stronger in the lifterbore are now.
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