Back2Mustangs said:Won't you still have to pull the heads, gut the block and replace all the internals, have the heads worked, install cams, etc etc...? Then replace the whole upper intake if you go w/boost... Seems like you're buying alot of extra stuff you don't need. Unless u just wanna swap motor for motor straight up, but I don't think you'd get your money's worth out of that
tjm73 said:All 5.4's have steel cranks now. So maybe Rods/pistons. But that's not the point. The 5.4 DOHC is not an easy engine to find yet, so having one available as a crate engine is a good thing.
tjm73 said:All 5.4's have steel cranks now. So maybe Rods/pistons. But that's not the point. The 5.4 DOHC is not an easy engine to find yet, so having one available as a crate engine is a good thing.
Back2Mustangs said:5.4L = 331cu right?
Well, the Iron block is a plus. Steel crank similar to Cobra crank maybe? So you replace the rods n pistons and get the heads and cams done then add a blower... I guess thats not a bad deal...you have to swap computers too or can you flash a GT comp to work with that setup? Hmmm...now you got me thinking...5.4 Nav crate or stay 2V's with a VT long-block and cams??
9646gt said:I wonder how the configuration of this motor compares to the config of the same motor ford is planning to boost and drop in the gt 500 net year...
Call me crazy, but arent those numbers lower than the 4.6 DOHC they have in the mach? For almost an extra litre, i would expect much higher numbers.tjm73 said:300 hp @ 5000 rpm
355 lbs-ft @ 2750 rpm
9.5:1 Compression
Iron Block
smokin'Red35th said:Call me crazy, but arent those numbers lower than the 4.6 DOHC they have in the mach? For almost an extra litre, i would expect much higher numbers.
anybody know the reasoning behind this?
the GT500 will be using the exact same heads as the Cobra R/Ford GT which are the best flowing DOHC heads ford made period. it will be using the same valvetrain parts too, not too sure if it's the same cams though. pistons and rods will also be from the GT or at least be very similar to them if i'm not mistaken...could be wrong on that though.tjm73 said:I'm sure the differences are signifigant. Different rods and pistons for sure. Probably a forged crank I imagine too. I doubt they'll do anything different to the heads. Possibly cams, but they say all PI headed engines, whether 4.6 or 5.4, have the exact same cam....so I think they may just run the same cams as a 4.6 DOHC.
the Boss 290 intake is designed to work with 03/04 cobra heads which have smaller intake ports than navi heads to begin with. you can make more power using a sullivan intake and navi heads.calilifestyle said:I would buy the Boss 290 intake from Australia as well as some Cobra R spec cams and you would have one bad ass NA 5.4L.
smokin'Red35th said:Call me crazy, but arent those numbers lower than the 4.6 DOHC they have in the mach? For almost an extra litre, i would expect much higher numbers.
anybody know the reasoning behind this?
Bornstanger said:the GT500 will be using the exact same heads as the Cobra R/Ford GT which are the best flowing DOHC heads ford made period. it will be using the same valvetrain parts too, not too sure if it's the same cams though. pistons and rods will also be from the GT or at least be very similar to them if i'm not mistaken...could be wrong on that though.
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?