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500 box to head + header to box clearance

2K views 4 replies 3 participants last post by  Rick_L 
#1 ·
Box to head 3 & 1/8"

Header to box .865 without gasket.

Headers are H8055 3/4 length.

Left side = easy fit from the bottom.

Right = easy fit from the top or bottom.

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#4 ·
57 frame, small block, Speedway biscuit style side mounts.
Headers are Patriot H8055 3/4 length.

153 tooth flywheel = starter to header clearance.

Small gear drive Tilton starter will hit the right header using a 168 tooth flywheel.

Long idler arm to frame bolts will contact the right side header.
 
#5 ·
No offense to any users, but plenty of offense to header designers/builders/sellers. How in the world do you miss the fit on the passenger side? It's easy. You should be able to clear any starter/idler arm or other obstacle.

The driver side is harder. Just the same, you should be able to get close there and honestly tell customers what's offered.
 
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