I would never bore a 4.6 block more than .020 over for street use, the liners get a bit thin after that. As far as who bores it, I only have one requirement:
They must use a torque plate to bore or even hone the 4.6. The 4.6 block is very succeptible to distortion when the heads are torqued down, so you must replicate that when you're boring it, or your bores will not be round once you torque the heads on.
Other than that, it's a fairly straight rebuild.
2001 Dark Highland Green Bullitt [email protected] naturally aspirated on a bone stock 2V longblock
Under Reconstruction for RS275 Drag Radial Class Pushrods and Powerglide Coming Soon If it weren't for physics and law enforcement, I'd be unstoppable.