- Dec 26, 2013
That's what I'm trying to tell ya. Olds aren't entirely different from anything, but there are a few things that require extra attention. Speed Pro/TRW pistons come with an incorrect spec. Increase the piston to bore clearance. Olds cranks are traditionally wet noodles. A forged 330 crank helps you immensely. Lighten up the pistons and rods, get a good balance, and it'll be ruthless.