Hey does anyone know what the redline on the navigator engine is. I am trying to put a mod 4v into my 93 GT and i am trying to get teh specs for all of these engines. Alsoo does it have forged internals, or not. Thank you for any help any of you can offer. Thanks guys.
navi engines don't have forged internals except for the crank. and i believe they stopped using the forged crank in 01 for a cast version. as for the redline i'm not sure. although you probably could spin it to about 6500 to 7000 if you forge it.