iwould go with what cotton told me ,stock block with studs,forged stroker crank,k1 h beam rods with arp bolts,diamond pistons,block girdle,and very important to balance assembly!! this way smoother idle, better running, and more power to boot!!! as far as heads go,for 10.50 i would go with race ported stock heads,and razors alky kit for more power and to help cool intake charge for less detonation!!