855.0sean

what would be the best bore for my 5.0?
its a carbed 85 5.0 with 83000 miles on it.

mjr46

take it to the machine shop...it may just need a hone ..if not then standard would be .030

WLingle92lx

It would probably only need a hone if its an 80K block that was taken care of.

If you bore it, it will give you a little more compression but then you would have to buy 0.030 over pistons. Boring my block 0.030 over took my compression from 12.0.1 to 12.2.1, not much but its some.

tinman

If car is still on a carb (hope so) there could be some egg shaped wear in the cylinders.
If that is the case then .030 is the next overbore size.
That would make it a 306..........

855.0sean

hes redoing everything for me including the entire engine rebuild for 1200. i was told it would be another 50-75 horespower with a more aggresive cam.

89Ford

boring an engine cylinder doesnt really add any power, so 4.000 but if you have to .030 over is second best

mjr46

bwah haaaaaaaaaaaaaaaa.......and you believed him???? maybe with a good set of aluminum heads good intake and supporting mods it might generate an extra 75 rwhp..but with just a cam???[sm=icon_rofl.gif][sm=icon_rofl.gif][sm=icon_rofl.gif]

855.0sean

no not just the cam performance heads, pistons,bearings alot of other stuff.
ill call him and get a list. its a performance kit from nelson racing i believe? not100% sure what brand but i think he said nelson?

855.0sean

nevermind not nelson ill find out tommarow though.

mjr46

what heads???and intake?? and size cam??