So I just picked up a 6.9 engine today for $200 and I plan on rebuilding it with a master rebuild kit. Originallyi was just going to rebuild the motor in my 84 f250 but I figure this way I can take a s long as I want and do everything the right way. Is there any tricks tips or things I should do while im in there? When the motor is done im then going to modify a 95 7.3 turbo to fit. Should I get lower compression pistons for that?

 

what model year is the engine you are rebuilding?

 

I am unsure. The tag from the valve cover is peeled off at the bottom where date would be. The only thing different from the motor in my 84 is that this one has a each sensor on the timing cover and a steel braided hose running from the block near the oil filter up to the top of the motor

 

sensor is a tach sensor, that braided hose is for the oil pressure sensor.


since it has the tach sensor, io am going to say it is probly a 85 or 86 model.


how much boost you planing on running?

Replace all bearings, have the entire bottom end balanced, heads checked and tested, block checked and tested. head studs, ceramic coated pistions.

 

Im not sure how much boost I plan to run. I guess ideally as much boost as I could get with a 7.3 turbo

 

i hear 10-12 is about max,with meltin heads.

 

well then you are up in the 30 psi range. dont use a idi.


some have gotten away with 20 psi, but it doesnt last long.

 

Even with lower compression pistons and headstuds I cant run 20 psi?

 

how low you planning since you are in NY. not going to start to pretty when cold with anything below 19.5 ish..

 

Pretty much whatever I have to do basically, I listened to the truck start with low compression at 50the degrees and if that's what I have to do I will. I don't have to drive it in the winter if it comes to that