$3,000 for the block

Then you got to bore it. Just say you want a 4.100 bore. That is .190" worth of boring. EXPENSIVE.

I would not spend that kind of money and still have 59 degree lifters with 1 7/8 lifter spacing unless I was dictated so by class rules. Just My Opinion.

Leon

Career best 8.02 @ 169 at 3050# and 10" tires small block power.