Trying to get a better understanding of the general strength of big block 2 bolt mains…
General plan: Need new pistons and rods… have stock steel crank… weighing options on rotating assembly versus buying separate… at this point to me the best bang for buck is a SCAT or Ohio assembly. Will be running the iron heads with mild mannered hydraulic roller… don’t plan on running it past 6-6500.
Would the general recommendation be to drop the coin on 4 bolt caps while the other machine work is being done? I know the BBC are inherently stronger then SBC and crank walk happens at somewhat higher power and RPM levels…
I found this: “STOCK OEM 4 bolt 454 blocks are not all that expensive
and a 2 bolt block with ARP main studs can support a surprising amount of hp, I don,t think its financially worth the effort to convert a 2 bolt block rather than swapping to ARP studs or a 4 bolt block, the conversion machine work and splayed main caps are likely to make selling a current block and purchasiing a factory 4 bolt block a better option”
So short answer… what is a reasonable threshold for abandoning a 2 bolt with studs for a 4 bolt?