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Now will someone please tell me which model year 300 I-6 I should put in my 1955 F-600? This truck came with a 223 I-6 and someone put a 239 V-8 in it when I was in grade school!
I want to also use a very well built AOD trans too. I want the 0.67 lockup overdrive since my rear ratio is 6.80 to 1. (big tires! 900-20)
Those are the years I did my research on when I was initially looking into the 300 I-6, so I couldn't tell you.
I do not care for vehicles after '72 because of all the garbage that was put on them & all the tweeking done to them to underpower them.
I agree with the Flashman in the fact that most vehicles after 72 pretty much are crap. However I dont think there was any change in the quality of the early emissions engines. They were just drug down with power robbing devices and could not breathe. I would say if you strip all that stuff off and set a '75 engine up just like a '71 you would have the same engine as far as power and durability. Remember I am talking about the early days. Now I wonder how the older carb 300's pan out against the E.F.I. engines for performance, and more importantly durability.
I know the 240/300 engines are considered some of the most durable engines EVER built. I guess its got to be good if a company is going to use the same basic thing for around 30 years. They could start production again today and a lot of Ford Truck buyers would be happy......
I must say that although I absolutely dislike all the electronics on todays cars, I like the idea of either a TBI or EFI instead of a carb.
THat means that I'll have to use a computer, oxy sensor etc...but todays gasoline is not liked by the old carbs .....
Does anyone think I should even try to use a TBI or EFI or should I just get a carb?
Originally Posted by GregTruck
I agree with the Flashman in the fact that most vehicles after 72 pretty much are crap. However I dont think there was any change in the quality of the early emissions engines. They were just drug down with power robbing devices and could not breathe. I would say if you strip all that stuff off and set a '75 engine up just like a '71 you would have the same engine as far as power and durability. Remember I am talking about the early days. Now I wonder how the older carb 300's pan out against the E.F.I. engines for performance, and more importantly durability.
I know the 240/300 engines are considered some of the most durable engines EVER built. I guess its got to be good if a company is going to use the same basic thing for around 30 years. They could start production again today and a lot of Ford Truck buyers would be happy......
I'd like to go TBI (GM) on a 300. The only problem with the intakes are that the end cylinders are so much more runner length than the middles, causing some possibility of fuel distribution problems in a wet intake system as opposed to the individual injectors on the late EFI sixes. I'd like to get a dual 4bbl manifold and put a single-barrel TBI on each carb boss. This would even out the runner lengths, still be able to use the popular '747 computer, be cheap to build, and easy to tune. I know purists don't want GM parts on their trucks, but the things ARE very reliable, and infinitely tunable. I think that with the Ford Big Six would be a sweet setup. (It would look cool too!)
I thought I read where later model EFI short blocks came standard with a steel crank?
I'm thinking a late model short block combined an early head would be the best starting point.
Thoughts?
Don't think so, but I'll know soon, as I'm about to tear into mine in a couple of weeks. I thought only some of the old BIG trucks and some industrial engines had the steel crank, but not sure. From a compression standpoint, at least, it's the other way around. EFI head on a carbed short-block for highest compression/best burn. Don't know how carb/EFI heads compare on port flow, other than both suck . I'd like to know which one flows better, or if there's any real difference, if anyone can answer that question.
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