GT40 heads on 5.8
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GT40s will fit with no issues with the intake or exhaust manifolds. If they came off a 5L engine the head bolt holes have to be enlarged.
GT40P heads have a unique spark plug angle that make them difficult to fit with factory manifolds and many headers. They also need the head bolt holes enlarged.
Do not pay a premium price for either version. Many sellers think they are made of gold.
GT40P heads have a unique spark plug angle that make them difficult to fit with factory manifolds and many headers. They also need the head bolt holes enlarged.
Do not pay a premium price for either version. Many sellers think they are made of gold.
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