I am considering going low tech concerning a vehicle (truck) to be used daily or as a back up. I remember grandma and grandpa had a 1965 Ford Galaxy 500 with a 390 motor. Grandpa never changed the oil - just topped it up. This car use to start in any weather (-40C), never being plugged in; the thing was bullet and bomb proof. Today's vehicles, with their supercomputers, are anything but reliable. Here is what I propose to do.
My last remaining grandparent has a 1985 Ford Bronco (351 W) with a three speed. It gets about 5-7 mpg! No kidding. It has been checked out by more than one mechanic and they say it is running fine. The Bronco has around 130,000 kms so all around it is in good condition. I propose to have an engine custom built by a respected engine builder. I am thinking a high hp, easy revving (6500 rpm) 302 producing 350hp/350 tq, which would surely see these hp and tq figure peak at higher rpm - not great for towing though but wait. I would put in a 6 (or 5) speed ZF gearbox and lower the gearing right down. I could go with a 351 or a stroker (to 396 or 408) but this surely see fuel mileage suffer. The motor would be carbed and built to be bomb proof. The Bronco itself has no power windows or locks but does have cruise and air con.
I would select the gear ratios from the manufacturer. The first 2 gears would be low for pulling a camping or horse trailer. All gears would be closely spaced. 1st gear would not be used for daily driving. Having a 6 speed gear box would make for a nice tall highway gear.
My question is:
What kind of cam to use? Should I build the engine to be a stump puller (mild cam) and go with a normal set of gears? Or, should I not worry about using a mild cam and use lower gearing instead to create a strong low rpm puller and consequentally, a nice highway cruiser and daily driver with the choice of 6 speeds?
Do you recommend automatic or manual?
Manual could see me use 3rd off the line, 4th for city driving and 6th so highway cruise. 5th would be used for highyway passing?
Your thoughts?
My last remaining grandparent has a 1985 Ford Bronco (351 W) with a three speed. It gets about 5-7 mpg! No kidding. It has been checked out by more than one mechanic and they say it is running fine. The Bronco has around 130,000 kms so all around it is in good condition. I propose to have an engine custom built by a respected engine builder. I am thinking a high hp, easy revving (6500 rpm) 302 producing 350hp/350 tq, which would surely see these hp and tq figure peak at higher rpm - not great for towing though but wait. I would put in a 6 (or 5) speed ZF gearbox and lower the gearing right down. I could go with a 351 or a stroker (to 396 or 408) but this surely see fuel mileage suffer. The motor would be carbed and built to be bomb proof. The Bronco itself has no power windows or locks but does have cruise and air con.
I would select the gear ratios from the manufacturer. The first 2 gears would be low for pulling a camping or horse trailer. All gears would be closely spaced. 1st gear would not be used for daily driving. Having a 6 speed gear box would make for a nice tall highway gear.
My question is:
What kind of cam to use? Should I build the engine to be a stump puller (mild cam) and go with a normal set of gears? Or, should I not worry about using a mild cam and use lower gearing instead to create a strong low rpm puller and consequentally, a nice highway cruiser and daily driver with the choice of 6 speeds?
Do you recommend automatic or manual?
Manual could see me use 3rd off the line, 4th for city driving and 6th so highway cruise. 5th would be used for highyway passing?
Your thoughts?