Building N/A KA24E and have some tolerance questions
Building N/A KA24E and have some tolerance questions
I'm preparing to rebuild the engine and trans in my 240 and plan to to use affordable parts but I would like to bump up the compression a little. My question is does anyone know how much you can safely mill the head and deck the block without running into piston to valve clearance issues ? Or, with the head cracking issues as well. I don't intend to get crazy with the machine work but if you go .020" on the head and the on block that's .040" total and if the motor has close tolerances then that could be an issue. I would simply buy some better pistons but availability and cost is my only problem with that so I am sticking with stock replacement units for now. I will be going with a pdm racing cam that runs .441/.447 lift so that also factors into the clearance equation.
arent there slight differences in the timing cover that require some fab work ? I really am only looking to get at least into the 9-9.5:1 range which I should be able to accomplish with machine work if tolerances allow. Also I would still run into money issues with buying a de head and intake. I have a very tight budget because I am also overhauling my trans and clutch system.