Originally Posted by 0ranger99
I ran the numbers for the cams. They are not the same they have diff profiles one cam number is 1278 and the other is a 1257. The cam for say a sable or a Taurus are the same but to a ranger its diff the truck cam has a grind more for low end trq and the sable or Taurus grind is more for fuel economy and smoothness. If u put the sable/Taurus engine in your truck it may work but the cam profiles are diff just so u know u could swap your old cam in to the other engine but don’t forget u also need to swap the lifters too once an engine is (broken in and the ring and lifter seat them self’s they should not be swapped to a diff cam) u can swap them over with no problem just make sure the lifter go on the same cam lobe. Also the profile of the cams is diff anof that the computer may pick up the difference and may not run right without a new tune in the pcm. Also I would swap over your rockers too, the 3.0 do come with diff ratios (1.5-1.6-1.7) so don’t take the chance and put your old rockers on it. As for the flex fuel parts u would need to swap over your injectors and fuel rail (very easy). The intake are also diff but that would be easily fixed by putting your old upper and lower intake on that engine (the lowers may be the same number # but you would already have it off to swap the cam) so why take the chance just put yours on. Also u should swap your old timing cover and your oil pan and exhaust manifolds too. Not trying to step on any one's toes but u should now this before you spend your money.
thanks so much!
i kinda figured there had to be some kinda difference ( i don't understand much at all about engines, but i do understand math pretty well. i just don't understand what the numbers mean in relation to reality. :) ) . i take it the longer rockers increase the stroke, creating a higher displacement without increasing the cylinder bore = more horse power? if so how can you know when you pull an engine what the internal components (cam sizes, etc...) are? VIN? i also think that my lower intake may need to be replaced also. i set it on a table and one corner sits a bit higher. i turned it several times thinking the difference may be due to the table top being warped, but the same difference in elevation occured at the same corner at eack movement . since it is an aluminum fitting can i just torque it back down, should i re-machine it, or just replace it?