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84GT350-1 · 02-07-2004, 08:18 AM

I am going today to look at a 351 sportsman block that has been used and bored .020. What is the max bore on these blocks? Ford racing says 4.000 to 4.030. So is this block waisted. Can't believe it can only take an 4.030 bore.
Thanks for your help....................

02-07-2004, 08:18 AM	#1
84GT350-1 Registered Member Join Date: Nov 1999 Location: Willard Ohio Posts: 60	351W sportsman block bore ?? I am going today to look at a 351 sportsman block that has been used and bored .020. What is the max bore on these blocks? Ford racing says 4.000 to 4.030. So is this block waisted. Can't believe it can only take an 4.030 bore. Thanks for your help.................... __________________ 1967 mustang fastback drag car. tube chassis. 468 BBF.. 1989 LX notch 1982 GT 2003 F350 6.0