Grit dog wrote:
Camper_Jeff_&_Kelli wrote:
jimh425 wrote:
Just wondering, why did you decide to stay with the 5.4 instead of a larger engine?
Because you have to change the wire harness, sensors, computer, and other issues whereas this pops right in. The 40 overbore makes it about a 338 cubic inch engine now. It's a lot tighter as a new engine, should produce more power, better mileage... we'll see after some miles.
Interesting, so you bought a crate 40 over long block presuming?
What's it rated at compared to the stock 5.4? Any other performance components in the engine porting, cams etc?
Engine is all stock, re-manufactured by FORD. There might be a tiny increase in compression. It does have an improved oil pump. No other mods. Electronic controlled engines aren't like the good old days when you could jet the carb, adjust timing , etc... Now days you change anything like larger injectors, bigger cam, you'll have to get a chip programmed for the changes you made or connect a computer with the tuning program and make those adjustments yourself. There are people that can do it, I don't have that stuff in my garage. I read in a performance magazine a few years back about flow benching 5.4 liter 2 valve heads. After some trial and error, the consensus was FORD really did their homework on the heads and they didn't develop significant flow improvement over stock.
I can feel the engine is more responsive than the old one was. I also noticed the power brakes seem to grab harder. There could be greater manifold vacuum now too.
The next things to go wrong will all be drive train. 4x4 transfer case axel gears, transmission, front springs are on the short list which will have my suspension setup for the camper better.
