the codes D6DE indicate that this block is a 250 , not a 200 like i was told ,correct?Oh you have a T5, that would be my choice to get the od 5th for pleasant highway cruising.
What are your block casting codes?
the codes D6DE indicate that this block is a 250 , not a 200 like i was told ,correct?Oh you have a T5, that would be my choice to get the od 5th for pleasant highway cruising.
What are your block casting codes?
Milling the head to the earlier specs will reduce the chamber volume and increase the effective compression ratio. In case you are not aware, the static compression ratio is the ratio between the maximum and minimum cylinder volume when the piston is at the bottom and top of its stroke. Milling the head reduces chamber (and therefore total cylinder) volume. Reducing the cylinder volume creates a higher compression ratio. Higher compression ratios are beneficial for engines - because the engine can extract more energy from the combustion process due to better thermal efficiency.can i ask what is the benefit of milling the 250 heads down to the same specs 48-52 cc as the original 170head ...
thanks, i have a photo of the water pump bolt holes ,thats what tipped me off. sorry i will have to get my son to help attach the photoBased on the info in the tech archive that does appear to be a 250 block. I can check in my Falcon Performance Handbook when i get back tomorrow.
Not sure where "n" or "t" is found.
the t5 is in my ranchero with the 170, which is a runner. the 200/250? is the donor. which was a candidate to go in my 62 wagon or (maybe the ranchero ). are you suggesting the "250" could bolt up to the t5?Does your T5 bolt directly to the bell housing?
You can find info on the visual difference between a 200 and 250 on the tech archive.
If you have a 250 you could proceed with the DSII upgrade.
OK I misunderstood when you stated you have a T5 on your Ranchero.hi thanks for your reply, can i ask what is the benefit of milling the 250 heads down to the same specs 48-52 cc as the original 170head.
i also have a t5 5spd on my ranchero and i do want to do the daul headers and mufflers . i have watched a few of the members videos and i am leaning towards flowmaster mufflers.
compression test today showed 5 cylinders were between 143-147 and cyl 5 is 128, no terrible ticking noice coming from there though.
sorry about the size of the pics. i have decided to sell the block and head , ive listed it as a250 unless i am proved wrong and its a 200. i think for my abilities i am better off sticking with the 170 and just add a few extras and dress it up as best i can.OK I misunderstood when you stated you have a T5 on your Ranchero.