usually the only worry at higher psi, is the pistons, rods are usually fine, and so it the crank, but if you want SBC rods will work if you narrow down the big ends, and the 3500 has a forged crank which can be used if you turn it down, or custom rods, and then you also will need the TCE external crank trigger.....even though i bent my last crank, i opted for the stock 3400 crank and SBC rods with custom forged pistons in my built motor....
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