The 289 block cracked in my 66 coupe. I was running an RV cam with 69 351W heads, Edelbrock performer intake and a Holley Pro-Jection TPI unit. Anyone know if a stock 302 HO roller short block will work well with the 351W heads? Do I need special pistons to get the compression in the 9:1 range for a daily driver? Any idea on a source for someone that has proven this combination?