New heads for 93 5.0

swr31 said:

I'm wanting to put a set of heads on my 93 5.0 (GT-40) what all am I looking at as far as having to change out to make everything work, what do you suggest, how much HP am I looking at gaining and how long do they normally take to install?


Just a set of heads? Hopefully they are the "assembled head" or you got some work ahead of you.
Which GT-40's are you slapping on there? X or P, the x's will defiinitely give you some power. Just do a quick double check on timing before you crank her up.

A gasket, and while you are there you might want to get a new header gasket.

GT-40X Xtra Performance "Turbo-Swirl" Aluminum Cylinder Head
Description: For use on 289/302/351 Windsor-style engines. Improved air flow over original GT-40 aluminum heads. Intake flows approximately 249 cfm at .550 lift (at 28 of H2O). Exhaust flows approximately 170 cfm at .500 lift (at 28 of H2O). Machined for 1.94 intake and 1.54 exhaust valve diameters.

True bolt-on performance. Unlike some aftermarket heads our GT-40 heads use either stock or performance: intake manifolds, headers, rocker arms (bolt-on style), and valve covers. Intake port volume 178cc, exhaustport volume 62cc. High temperature exhaust valve seats. Thick deck for improved sealing, increasing section thickness

in critical areas for porting, and webbed rocker bosses for improved strength. Designed for bolt-on rocker arms, machined for tapered seat spark plug or gasketed. Compatible with Motorsport intakes, headers, and valve train components. Can be machined for diagonal exhaust header flange mounting. High quality original equipment style 356-T6 aluminum castings, machining and components. Each aluminum head weighs approximately 22 lbs. - approximately 25 lbs. lighter than each cast iron GT-40 head.


These GT-40 style heads use AGSF-32C spark plugs. Each GT-40X head is leak tested prior to assembly. Head assembly consists of barehead M-6049-X302/X304 and GT-40 valve train kit M-60-90-X302 featuring stainless steel valves. The valve springs are compatible with all Ford Racing roller camshafts except M-6250-Z303. The fast, easy way to bolt-on 65 horsepower!


Installation Notes:


Will not fit 1986 5.0L with fltat-top pistons unless pistons are notched for valve relief. Must use head bolt kit M-6065-D289 to install cylinder heads on 289/302 blocks or head bolt and head gasket kit M-6051-A50. Check roller arm clearance to valve springs with production rocker arms.

complete Head 58cc Chamber

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