By lightening the crank, wouldn t it also result in a reciprocal loss, if minimal, of low end torque?
No, torque is a function of the length of the moment arm, in this case the stroke of the engine, not the weight of the moment arm. Lighter is always better, whether it’s crank, pistons, valves, block, you name it. The only possible exception might be the mass of the flywheel. There are 2 opinions but I favor the lighter ones and the resulting responsiveness. Jeff Polidoro – CJML ————————- ENGINE – PRE-LUBRICATING QESTION: My engine has been rebuilt, what can I do to pre-lubricate it prior to starting it? ANSWER I appreciate not every owner will have a spare oil pump but for those who do have access to one here is a tip. Temporarily install an oil pump that has had the teeth machined [or filed] off the driven gear. Removing the teeth will allow the pump to spin when driven by an electric drill via a shaft inserted in the distributor hole. The shaft can be gutted from an old distributor or made from metal bar simulating the oil pump drive tang. It doesn’t even have to be
