Pieces of steel in cylinder??
Might be a stupid question, but if I bore the cylinders, I would need to replace with slightly larger pistons, right? I mean, we’re talking thousandths of an inch, but that’s a lot in this case. Or would the piston rings account for the larger bore?
Typical overbore is .010", .020", .030", .040"...
Before boring I would look at the availability of pistons to get an idea of price...
I like to keep my cylinder walls as thick as possible for strength and in case you need to rebuild it again, you have some meat in the cylinder walls to work with...
If you overbore it, you will need new pistons and rings to match...
Mancini Racing has good deals on rebuild kits, I would recommend getting a C kit that comes with pistons, rings, rod bearings, main bearings, cam bearings, oil pump, freeze plug kit, and complete gasket kit at reasonable prices... You can also substitute higher compression pistons than the kit comes with for the difference in cost...
I built a 318 way back and used 10.5 compression pistons and 360 heads, with the 340/360 head larger combustion chamber size the compression ended up around 9.2 - perfect for a street engine.... Then you can also put 2.02" intake valves in the 360 heads and they will make that 318 run real nice with the larger ports...
Here's the link to the mancini racing a-engine rebuild kits... I would recommend looking into kits C or D...
Engine Rebuild Kits