Have found 4.6 block with forged pistons. Guy claims low miles on rebuild and the pistons and block looks clean and can still see honing marks on walls. Says have forged connecting rods to go with it for extra. It's a 98 block and found another guy with 4v heads off a 2001 cobra with 90K on them. Question is if this is a good buy for a build for replacement of my 01 cobra engine to build on? I want a pro charger but want the engine to be able to withstand boost. Should I source a forged crank also since everything is a good buy on the block and heads? Asking $400 for the block plus whatever the rods he's asking for and the heads are $400 also