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Tom B · 07-19-05, 07:52 AM

[ QUOTE ]
The closest thing will be the navigator 5.4L DOHC heads. But, these are not exact Ford GT40 though, as I am sure you probably realize.

Many people have done 5.4L DOHC head swaps on Ford Lightning motors which ends up with a motor that is similar to the Ford GT40. However, the Ford GT motor wears a screw type blower, not a roots design as on the 4.6L Cobra and 5.4L Lightning motor. Therefore, that is another big difference.

The closest thing you could probably build using "bolt on" parts would be to use a Lightning iron 5.4L block, Navigator 5.4L DOHC heads (check Lightning swaps for this procedure, there is a fair amount involved), and a Kenne Bell screw type blower in place of the Ford OEM Roots style. Power output will be higher than the Ford GT if you run any sort of boost on it (> 8psi) as folks routinely make over 550 rwhp and over 700 ft/lb rwtq with these combinations.

[/ QUOTE ]

Ron,
If one wanted to enhance the performance of the Ford GT, with pulley changes, who would you recommend? Using what products?

Thanks,

Tom

07-19-05, 07:52 AM	#3 (permalink)
Tom B Join Date: Jun 2005 GT40: Maryland, USA Posts: 9 Rep Power: 4	Re: HEADS [ QUOTE ] The closest thing will be the navigator 5.4L DOHC heads. But, these are not exact Ford GT40 though, as I am sure you probably realize. Many people have done 5.4L DOHC head swaps on Ford Lightning motors which ends up with a motor that is similar to the Ford GT40. However, the Ford GT motor wears a screw type blower, not a roots design as on the 4.6L Cobra and 5.4L Lightning motor. Therefore, that is another big difference. The closest thing you could probably build using "bolt on" parts would be to use a Lightning iron 5.4L block, Navigator 5.4L DOHC heads (check Lightning swaps for this procedure, there is a fair amount involved), and a Kenne Bell screw type blower in place of the Ford OEM Roots style. Power output will be higher than the Ford GT if you run any sort of boost on it (> 8psi) as folks routinely make over 550 rwhp and over 700 ft/lb rwtq with these combinations. [/ QUOTE ] Ron, If one wanted to enhance the performance of the Ford GT, with pulley changes, who would you recommend? Using what products? Thanks, Tom