swapping heads, does it work??
ok, i have a 96 Gt with the 4.6, i heard that i could take heads off a 99+ and directly bolt them on and is worth like 80 hp.. is this true, i was told i need the intake too with gaskets and may have to re-route the water tube that runs through the block.. i have access to a 2000 4.6, but i dont want to get into it if it dont work.. mine just seems to be lagging in the power department and now i have a hissing noise that is resonating from the air intake.. it is in the throttle body though, any ideas????
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