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Maybe this is a stupid question, but I'll ask anyways. Will Cobra or Mach 1 4V heads fit on my Bullitt's engine or is the block setup completely different?
Where is a good place to get the wiring harness and a new ecu? And when you say everything will I still be able to use my bullitt's intake on the heads?
Which 4V heads? There are the 93-98 B-heads, 99-01 tumble port heads, 5.4L tumble port heads, FR500s, 03-04 Cobra, Cobra R, or the Ford GT/GT500 heads. No 2V intake manifold will work with any 4V heads.