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These 9/16" to 1/2" custom head studs were originally designed for use in Top Fuel. They are much larger than the commonly used 11mm head studs and requires the block to be tapped to 9/16-12.
These 9/16" to 1/2" Ford 4.6L, 5.4L, 5.8L and 5.0 Coyote custom head studs were originally designed for use in Top Fuel. They are much larger than the co..
$689.99