You have cast pistons so the clearance is tight. You could run some forged pistons that need .004 clearance and ridged hone it.
Or this. There are rings available for FE fords in 4.170 bore size. So that means one could have some custom Pontiac pistons made that are .010 larger than you have right now. Then ridged hone it with tq plate to fit your new pistons.
Then buy a decent set of forged rods. Ones with PMD journal size were harder to find but it can be done.
|