all pinto cylinder heads are exactly the same dimension wise, the only difference being the diameter of the inlet valves, the 4-branch will fit for sure f it is in fact capri item,

if you're running a 1600 pinto then to be honest i'd ditch it and get a 2.0 for the money you won't get a better power gain

if you're running a 2.0, use 2.8i v6 pistons and a 2.0efi sierra head with a well set up 38DGAS carb from a 3.0 then you should have plenty fun