What it says....i've read its 1/2". That makes sense because they did put them on the lightning and i doubt they made two different batches with only the head bolt hole sizes being different.
What size are the head bolt holes on GT-40p heads?
- Thread starter nmcgrawj
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A buddy of mine cleared it up for me i think.....
95 Cobra R and 93-95 Lightnings just have standard GT40 irons. Only explorers got the gt40p. R's and L's ford just drilled out the head bolts to 1/2 inch.
So the gt-40p's should have 7/16" holes.
95 Cobra R and 93-95 Lightnings just have standard GT40 irons. Only explorers got the gt40p. R's and L's ford just drilled out the head bolts to 1/2 inch.
So the gt-40p's should have 7/16" holes.
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