Messing with Sixes can be frustrating sometimes
Posted: Mon Jul 24, 2017 10:28 pm
So in all my planning on putting a different engine/drivetrain in the Comet, my "good ideas" move one thing forward and another back it seems.
I decided to go with the 250 six so I could have easier transmission/bellhousing/starter/clutch choices and future replacement would be easier because everything is almost SBF, that is everything except the flywheel which is SBF in all aspects except it is zero imbalance and 250 manual flywheels are not available new at all, while one could get a new 302 flywheel for around $60 it won't work because of the 24 or 50 oz imbalance, a zero imbalance flywheel is like $200-$300+ so more to have no weight , I did find a billet one for $120 (screw on weights) so that is probably what I will go with it.
So then I want to change pistons with a taller deck (pin height), the ones available to do so are 255 V8 pistons which they only made for like 3 years in 80-83 (IIRC) and no one carries them, vintage inlines has a set of 6 for $215 and that is about as cheap as I can find them in an overbore size, now I can't seem to find rings in anything but standard and .040 over (may have seen some clearance .020 on RockAuto) I think I will need .020 or .030 overbore so this will be fun
I own a Comet because I like a challenge finding parts, may as well have a challenging, rare motor as well When it ever all gets done it will be a point of pride hopefully and not too many people will make fun of me. If it was easy it might not be as fun
See Ya,
Mike
I decided to go with the 250 six so I could have easier transmission/bellhousing/starter/clutch choices and future replacement would be easier because everything is almost SBF, that is everything except the flywheel which is SBF in all aspects except it is zero imbalance and 250 manual flywheels are not available new at all, while one could get a new 302 flywheel for around $60 it won't work because of the 24 or 50 oz imbalance, a zero imbalance flywheel is like $200-$300+ so more to have no weight , I did find a billet one for $120 (screw on weights) so that is probably what I will go with it.
So then I want to change pistons with a taller deck (pin height), the ones available to do so are 255 V8 pistons which they only made for like 3 years in 80-83 (IIRC) and no one carries them, vintage inlines has a set of 6 for $215 and that is about as cheap as I can find them in an overbore size, now I can't seem to find rings in anything but standard and .040 over (may have seen some clearance .020 on RockAuto) I think I will need .020 or .030 overbore so this will be fun
I own a Comet because I like a challenge finding parts, may as well have a challenging, rare motor as well When it ever all gets done it will be a point of pride hopefully and not too many people will make fun of me. If it was easy it might not be as fun
See Ya,
Mike