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High performance heads on `99 5.4??

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Old 02-14-2002, 07:52 PM
Join Date: Jan 2002
Location: Northwest
Vehicle: 1999 Ford F150
Posts: 47
High performance heads on `99 5.4??

My truck went into the dealer last week for the leaking head gasket. Dealer told me that they discovered that my head was blemished and that they would order a replacement and that it would be done today.
I got a call from the service guy this morning saying that they ordered the wrong head and that my engine had some special factory hi-po heads that were only available in `99, and that his computer ordering system didn't catch the mistake. So, he has to order another head and it will be here tomorrow at 11:00, but they won't get the head installed untill Monday.
I know Ford upped the horsepower of the 5.4 in `99, but I thought all `99 5.4s had the same heads?
Does this sound fishy to you guys?
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Old 02-14-2002, 08:13 PM
Senior Member
Join Date: Jan 1999
Vehicle: "99" FORD F-150
Posts: 7,014

HI!... Sounds like your dealer does'nt know *****, about these trucks. "97-98" F-150 5.4's have the plain 2-valve heads. All "99" to current 5.4's have "P.I" heads (POWER IMPROVED). I bet the dealer ordered the pre- "99" heads. The valves are bigger, intake ports are shaped differently. The "99" to current intakes won't bolt to pre - "99" heads, and vise-versa.
"1999" F-150 XLT SPORT, BUILT 5.4, all N/A.
354RWH.P/392RWTQ (no tune, yet) on 8 cylinders/ 1/8= 8.4, 13.60E.T (on 7 cylinders, broken ring in #5), 1.8 60FT.

"2007" FORD RANGER SPORT, EC, SB, 4X2, 4.0L. 1/8= 8.8, 13.83E.T
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