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Home/ Registry/ Ford/ Bronco/ 1992-1996/ 1992 Bronco/ GT40 Heads supermotors.net/registry/28006/87855

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GT40 Heads

From 1992 Ford Bronco, documented by fodder.

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1992 Ford Bronco - Gasket matching the GT40 heads (top) to the truck EFI intake manifold (bottom). 1992 Ford Bronco - Comp Cams 35-512-8 waiting its turn. 1992 Ford Bronco - The supporting parts stash has grown significantly as porting nears completion. 1992 Ford Bronco - Intake/exhaust bowls, before and not-quite-after porting. Most notable is how needlessly thick the valve guides are, and how restricted the… 1992 Ford Bronco - Lots of casting slop for carbon to grab hold of. 1992 Ford Bronco - The infamous exhaust port thermactor bump. 1992 Ford Bronco - Intake ports done. I didn't get super aggressive with the pushrod bulges, opting instead to just level (vertically) the wall's contour thro… 1992 Ford Bronco - Close-up of one of the intake ports. You can see the walls aren't perfectly flat, but I didn't want to take off too much material in trying… 1992 Ford Bronco - Close-up of one of the exhaust ports. 1992 Ford Bronco - Intake/exhaust bowls ported. The valve throat has been opened up as far as I dared go on the exhaust side, reaching 85% of valve diameter. 1992 Ford Bronco - I also smoothed out the EGR passage's transition on each head. 1992 Ford Bronco - Exhaust ports. 1992 Ford Bronco - Valves lapped ... plus a little flash rust from the water leak test. They all seem to seal well enough at this point. 1992 Ford Bronco - Playing around with the old lower manifold to see how much material can be removed for gasket matching to the heads.