Mine is way above that power level, but you can reduce the compression ratio, cam, and maybe the heads to suit you.

400 block, 4.375" bore
Aluminum main caps (a girdle is another option)
4.250" stroke Callies crank
6.535" long BB Chevy style H-beam rods
1.32" compression height, flat top piston (check your actual block deck height)
Deep sump oil pan, 1/2 NPT internal pickup
Comp Cams MM305S-10 solid flat tappet cam, 279/284 at 0.050", 0.650/0.630" lift, 110 LSA
Indy 440-1 heads cut to 68cc for 13.5 CR

9.20's at 3250 lbs

+9.980" Block deck height
-2.125" Half stroke (4.250/2)
-6.535" Rod Length
-1.320" Piston compression height
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+0.000" piston to deck