There are some topics on the I-6 vs the V-8's in the forums you might want to check out. Everyone has their own opinion on pros and cons of each motor, but the inline 6, 300 c.i.d., is a stump-pulling motor hands down. For a college student on a budget or anyone wanting a Bronco that should not take a fortune to make into a daily driver, the same goes. Check out the motor as much as you can. IF it burns more than 1 quart of oil per 1000 miles, has any leaks or knocking, beware. Leaks can be as simple as tightening the valve cover bolts or replacing the gasket, or more costly in the form of a crankshaft seal or rusted out oil pan. Knocking sounds or excessive oil use can be worn piston rings, main bearings or both. A big hickey for the V-8 motors is a failed oil pump due to a clogged pick-up tube. I've had 3 or 4 Ford motors die from that at 160K-170K miles.
IF this is the first Bronco you've looked at, pass on it and look at others. There are many, many good-running Broncos with lower mileage on the market. As stated, owner maintenance and regular oil changes are very important. A good question to ask the seller is the history of the vehicle, and if he/she has any records.
My 84 Bronco gem is a prime example. The original owner is a good friend of mine, and I knew him when he bought the Bronco brand new. I often rode or drove in it on trips. He took meticulous care of it, like it was a family member. At 170,000 miles the oil pressure suddenly dropped to nothing. Changed the sending unit, same reading. Installed a new oil pump, which lasted 3 days. While he changed oil every 2000 miles and used a Teflon treatment (Lubrilon), the main bearings were just wore out. Metal filings from the mains killed the original oil pump, and quickly killed the new pump. I offered to buy the Bronco, and had a new longblock kit installed ($1600). Total cost of the LB kit, labor, and fixxing things after the install was about $3.000. My buds thought I should be shot for spending that much money on an old Bronco, hence my user name. I proved them wrong!!!
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