Hey all, I’m new to the forum and recently gave up my decked out Honda Civic and moved to a 2004 Mustang GT.
Nothing can touch the sound of a V8 but maybe a V10… With that said I wanted to start a new thread that I have not seen much technical information on. I have seen where some have performed the swap on a 1999 and 2005 mustang but they spared no expense… I would like to do this cheap and document the steps for others.
What got me started:
The sound of my Mustang is awesome but I compare to the many Harleys I have owned, a lot of show but not much go when comparing to the crotch rockets.
I initially looked at modding my 4.6L but came to realize that to get real good power “which I know is subjective” real good power to me is 350 horses and 400+lbs of torque. So my research on the web led me to a 5.4L 2V or 3V, but then I saw some brief threads on the 6.8L so now I’m considering a 2005 6.8L V10 SOHC swap. It may be a bad idea but let’s explore it… Hey a V10 Mustang would be Bad Ass and my Blue Convertible with Cobra wheels and Stalker Body get will be able to back its show with go…
Oh and the stock power from a 2005 6.8L V10 is: 362 hp and 457 lb·ft
Max Torque: 3250 rpm and Max Horsepower: 4750 rpm
What I have learned from the Web:
Things that I think I know…
My concerns that I need clarification for:
Nothing can touch the sound of a V8 but maybe a V10… With that said I wanted to start a new thread that I have not seen much technical information on. I have seen where some have performed the swap on a 1999 and 2005 mustang but they spared no expense… I would like to do this cheap and document the steps for others.
What got me started:
The sound of my Mustang is awesome but I compare to the many Harleys I have owned, a lot of show but not much go when comparing to the crotch rockets.
I initially looked at modding my 4.6L but came to realize that to get real good power “which I know is subjective” real good power to me is 350 horses and 400+lbs of torque. So my research on the web led me to a 5.4L 2V or 3V, but then I saw some brief threads on the 6.8L so now I’m considering a 2005 6.8L V10 SOHC swap. It may be a bad idea but let’s explore it… Hey a V10 Mustang would be Bad Ass and my Blue Convertible with Cobra wheels and Stalker Body get will be able to back its show with go…
Oh and the stock power from a 2005 6.8L V10 is: 362 hp and 457 lb·ft
Max Torque: 3250 rpm and Max Horsepower: 4750 rpm
What I have learned from the Web:
- The Modular engines from 4.6 to 6.8 all have the same engine mounts.
- The 4.6 is approximately 24 inches long and the 6.8L is 27 ½ inches long.
- Height from Throttle body to bottom of oil pan for the 4.6 is ~ 27 1/8 inches high and the 6.8L is 28 1/2 inches tall. In contrast the 5.4L 3v from the Navigator is 35 ½ inches tall but the 5.4L from with a Sullivan intake is 28 ½ inches tall. The 5.4L from a E350 van may also work.
- The 4.6L weighs ~ 500lbs and the 6.8L weighs ~ 640lbs
Things that I think I know…
- Found a new 6.8L for $2,500 with everything.
- Headers on eBay are $150.00 for the 6.8L “Not sure if the would fit but good starting point.”
- Installing a tubular cross members which would help compensate 50 to 60lbs for the increased weight from the 6.8L and may allow for pushing the engine back towards the firewall about and inch or so… $350 - $1,000
- Move the battery to the Trunk move about 30lbs to the trunk
- My hood is a stalker hood which should be lighter than the stock and provide for more clearance
- Stronger clutch “recommendations”
- Drive Shaft?
My concerns that I need clarification for:
- Would the Mustangs 5 speed manual gearbox connect to the 6.8L block?
- Would the ECU from the pulled 6.8L work in place of the Mustangs ECU or should I consider a standalone system?
- My guess gearing changes would need to be made
