mixing up 4v motors?

DickH · September 28th, 2009, 04:53 AM

Say I found a complete mark8 motor fairly cheap, and perhapse found some 04 mach 1 heads, also fairly cheap. Aside from the intake manifold, is there anything different? Will it all bolt up just the same?

Doc8224 · September 28th, 2009, 06:32 PM

Yes you can mix and match modular stuff. I have 01 lincoln navigator heads (5.4 4v) on a teksid block with my Mach intake.

Boostang · September 28th, 2009, 10:03 PM

are the navi heads B heads to??

DickH · September 29th, 2009, 12:19 AM

Well I was mostly worried about things like the timing chains/cover and whatnot. Is it a direct swap, or are there little things here and there that need changed as well.

ReverendDexter · September 29th, 2009, 12:22 AM

Originally Posted by Doc8224

Yes you can mix and match modular stuff. I have 01 lincoln navigator heads (5.4 4v) on a teksid block with my Mach intake.

Really? I thought the Navi heads were too much for an N/A 4.6L.

SWEET2KSTANG · September 29th, 2009, 03:29 AM

well, the original plan got out of budget. those heads will be utilized soon enough

SWEET2KSTANG · September 29th, 2009, 03:31 AM

as far as mixing and matchin, it can all be done. the 4v stuff is all interchangable with the exception of b-head or c-head set up. all the components like bearings, bolts, chains, tensioners, etc are all the same.

Boostang · September 29th, 2009, 02:19 PM

you can put a cobra intake on the b-heads tho right!?

98Cobra_sleeper · September 29th, 2009, 02:21 PM

yeah B heads are cobra heads, just the 96-98 cobra

Boostang · September 29th, 2009, 04:56 PM

where do u shift at? what hp does ur car come with stock?

ReverendDexter · September 29th, 2009, 05:32 PM

Originally Posted by Boostang

where do u shift at? what hp does ur car come with stock?

Who is this directed towards?

For b-port cars, stock at the crank is 305hp@5800rpm, 300ft-lb@4800rpm, and I've heard that you shift absolutely as late as possible that won't hit the rev limiter (so, 6500? 6700?).

I don't drag race, though, so I'd wait 'til someone else chimed in on a proper shift point.

Boostang · September 29th, 2009, 07:27 PM

what are the hp/tq numbers with the 99-01 cobra's (c-heads)..?

DickH · September 29th, 2009, 09:06 PM

Well that's all good news, I wanted a 4v for cheap. Now I'm seriously thinking about picking up the motor and throwing in a forged rotating assembly, then get some 04 3v heads on it and call it a day. Is there anything more to it?

Boostang · September 29th, 2009, 09:20 PM

i dunno if the pi intake willl fit on the 3v heads.. but if not i know the throttle on the 3v's arn't cable driven.. but there is a converstion kit for this tho

98Cobra_sleeper · September 29th, 2009, 09:23 PM

Originally Posted by Boostang

where do u shift at? what hp does ur car come with stock?

well i've never had my car in stock form, so i dont know. i always shifted like at 6500 in case i didn't shift fast so i didn't overrev.

Doc8224 · September 29th, 2009, 09:34 PM

Originally Posted by DickH

Well that's all good news, I wanted a 4v for cheap. Now I'm seriously thinking about picking up the motor and throwing in a forged rotating assembly, then get some 04 3v heads on it and call it a day. Is there anything more to it?

I'm assuming you mean 04 4v heads right? there aren't 04 3v heads.

Boostang · September 30th, 2009, 12:13 AM

^^^ lol i didnt catch that!! dang!!

ReverendDexter · September 30th, 2009, 12:17 AM

Originally Posted by Boostang

what are the hp/tq numbers with the 99-01 cobra's (c-heads)..?

The Cobras were supposedly overrated at 315 or 320hp, the Mach 1s were supposedly underrated at 310-315hp.

Boostang · September 30th, 2009, 01:35 AM

ooh... i so theres not a big difference between the 98 and 01 cobras?

DickH · September 30th, 2009, 03:50 AM

Originally Posted by Doc8224

I'm assuming you mean 04 4v heads right? there aren't 04 3v heads.

yep yep, was thinking 03/04 4v, and did not type it.

Hm... what else is there to a motor besides the rotating assembly, block, heads, chain, chain cover, and oil/water pumps? If im swapping heads/internals, would it be cheaper to just buy everything and build the motor, or is there a lot of little shit that adds up?

September 28th, 2009, 04:53 AM	#1
DickH MM Fanatic 2003 gt 5.4 32v on the way Join Date: May 2007 Location: Omaha Posts: 4,188 iTrader: 2 reviews	mixing up 4v motors? Say I found a complete mark8 motor fairly cheap, and perhapse found some 04 mach 1 heads, also fairly cheap. Aside from the intake manifold, is there anything different? Will it all bolt up just the same? __________________ 2003 Mustang gt - usual mods - slowly working on 5.4 swap 2004 srt4 - Stock DD/winter beater Click here for your tuning needs Before asking a gearing related question click THIS link and enjoy all your saved time.

September 28th, 2009, 06:32 PM	#2
Doc8224 N/A 4v Guru 2003 Mach 1 Join Date: Oct 2007 Location: Afghanistan Posts: 3,463 Blog Entries: 2 iTrader: 1 reviews	Yes you can mix and match modular stuff. I have 01 lincoln navigator heads (5.4 4v) on a teksid block with my Mach intake. __________________ Military Crew U.S. Army Aviation Apache's Lead The Way

September 29th, 2009, 12:19 AM	#4
DickH MM Fanatic 2003 gt 5.4 32v on the way Join Date: May 2007 Location: Omaha Posts: 4,188 iTrader: 2 reviews	Well I was mostly worried about things like the timing chains/cover and whatnot. Is it a direct swap, or are there little things here and there that need changed as well. __________________ 2003 Mustang gt - usual mods - slowly working on 5.4 swap 2004 srt4 - Stock DD/winter beater Click here for your tuning needs Before asking a gearing related question click THIS link and enjoy all your saved time.

September 29th, 2009, 03:29 AM	#6
SWEET2KSTANG mm's nitrous mod 2000 mustang gt 11.79@115.83 (old set up) Join Date: Oct 2006 Location: N.W. AR Posts: 12,540 iTrader: 8 reviews	well, the original plan got out of budget. those heads will be utilized soon enough __________________ project warhorse under construction wagon burner under construction as well (04 lightning) being built by MP2 Performance

September 29th, 2009, 03:31 AM	#7
SWEET2KSTANG mm's nitrous mod 2000 mustang gt 11.79@115.83 (old set up) Join Date: Oct 2006 Location: N.W. AR Posts: 12,540 iTrader: 8 reviews	as far as mixing and matchin, it can all be done. the 4v stuff is all interchangable with the exception of b-head or c-head set up. all the components like bearings, bolts, chains, tensioners, etc are all the same. __________________ project warhorse under construction wagon burner under construction as well (04 lightning) being built by MP2 Performance

September 28th, 2009, 10:03 PM	#3
Boostang Hardcore Enthusiast 1997 Mustang GT 11.01@128.32 Join Date: Jan 2009 Location: Seale, Alabama Posts: 1,747 iTrader: 0 reviews	are the navi heads B heads to??

September 29th, 2009, 02:19 PM	#8
Boostang Hardcore Enthusiast 1997 Mustang GT 11.01@128.32 Join Date: Jan 2009 Location: Seale, Alabama Posts: 1,747 iTrader: 0 reviews	you can put a cobra intake on the b-heads tho right!?

September 29th, 2009, 02:21 PM	#9
98Cobra_sleeper Enthusiast 1998 mustang cobra Join Date: Jul 2009 Location: pa Posts: 617 iTrader: 0 reviews	yeah B heads are cobra heads, just the 96-98 cobra __________________ HP twin turbo - 691hp/608tq with 15lbs huffed in (old setup) comin soon...ON3 turbo kit, PTE7175

September 29th, 2009, 04:56 PM	#10
Boostang Hardcore Enthusiast 1997 Mustang GT 11.01@128.32 Join Date: Jan 2009 Location: Seale, Alabama Posts: 1,747 iTrader: 0 reviews	where do u shift at? what hp does ur car come with stock?

September 29th, 2009, 07:27 PM	#12
Boostang Hardcore Enthusiast 1997 Mustang GT 11.01@128.32 Join Date: Jan 2009 Location: Seale, Alabama Posts: 1,747 iTrader: 0 reviews	what are the hp/tq numbers with the 99-01 cobra's (c-heads)..?

September 29th, 2009, 09:06 PM	#13
DickH MM Fanatic 2003 gt 5.4 32v on the way Join Date: May 2007 Location: Omaha Posts: 4,188 iTrader: 2 reviews	Well that's all good news, I wanted a 4v for cheap. Now I'm seriously thinking about picking up the motor and throwing in a forged rotating assembly, then get some 04 3v heads on it and call it a day. Is there anything more to it? __________________ 2003 Mustang gt - usual mods - slowly working on 5.4 swap 2004 srt4 - Stock DD/winter beater Click here for your tuning needs Before asking a gearing related question click THIS link and enjoy all your saved time.

September 29th, 2009, 09:20 PM	#14
Boostang Hardcore Enthusiast 1997 Mustang GT 11.01@128.32 Join Date: Jan 2009 Location: Seale, Alabama Posts: 1,747 iTrader: 0 reviews	i dunno if the pi intake willl fit on the 3v heads.. but if not i know the throttle on the 3v's arn't cable driven.. but there is a converstion kit for this tho

September 30th, 2009, 12:13 AM	#17
Boostang Hardcore Enthusiast 1997 Mustang GT 11.01@128.32 Join Date: Jan 2009 Location: Seale, Alabama Posts: 1,747 iTrader: 0 reviews	^^^ lol i didnt catch that!! dang!!

September 30th, 2009, 01:35 AM	#19
Boostang Hardcore Enthusiast 1997 Mustang GT 11.01@128.32 Join Date: Jan 2009 Location: Seale, Alabama Posts: 1,747 iTrader: 0 reviews	ooh... i so theres not a big difference between the 98 and 01 cobras?

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