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what is the max safe cylinder wall bore for a stock 302?

6.4K views 3 replies 4 participants last post by  Michael Yount  
#1 ·
i have my block .030" over allready. it will need bored out due to too much clearence, is .040" for a 331 stroker kit leave the walls too thin? would i have to upgrade h20 pump etc.....

thanks guys.