Ok first question is how did you get 244cu in 250 block????
But anyway here it goes. First off doing this to a head is not cheap.All the time it will take to cut & weld the head up. Then there is redrilling and filling holes in the block. Special head gasket,Custom valve cover&gasket You will also need to make New side lifter covers Because now the push rods are now out side the block.And last but not least custom exhaust and Intake. So after
all that you now have a 4in combustion chambered
head, On a now less then 4in bore block.This could now leave a issue with valve to block cleance depending on the lift of the cam.And on a
Low deck motor(250) there is not as much meat
(persay) to the top of the block like the 292s
because they are taller/Thicker over the water
area if you was to look at the face of the block.
The whole top deck is thicker.
Yes more is to be had,But as to how much?That i do not know.
Have you lump ported Your stock L6 head? If not
maybe you should.This to will give you more power
and a much better air flow.


Larry/Twisted6
[oooooo] smile
Adding CFM adds boost smile
shocked God doesn't like ugly.