well i went to the junkyard today and found a old ford with a so called 400 the engine code is D7TE A3B the plugs were out so i tryed to check the stroke with the dipstick and i measured it to be right at 5 inchs right from the end of the sparkplug threads i assume its a 400 wut do u guys think?
i also heard these are hipo blocks when i searched the net is this true?
thanks guys

 

Something is wrong with a 5" measurement. Check the crankshaft and the info here:
https://www.ford-trucks.com/forums/5...rankshaft.html

 

well its still in the truck i would say the other inch is toke up by the head i can't remember but i think when i measured my 351m it was 4 1/2 but maybe i'll check the modified again
thanks