4.2 swap question.

April 1st, 2008, 11:49 PM	#1
Orangester Regular Join Date: Jan 2007 Location: Quad Cities, Iowa Posts: 373	4.2 swap question. I feel the need for more power, but don't feel like taking on a project as big as a V8 swap, or shelling out the dollars for a SSMS block. Can I pull a 4.2 out of an F150, and maybe put in a cam/heads package on it from SSMS and expect it to work? Would the swap be a direct one or would I be needing something more? PCM aside, I'd plan on having VMP tune it anyway.

April 2nd, 2008, 12:03 AM	#2
GreenFaleen Resident MM Ricer 2006 Scion tC 13.9@103/8.9@81 Join Date: Nov 2006 Location: Raleigh/Lenoir, NC Posts: 9,388	Answer to all is yes, but you might as well just get a 4.2L stroker kit rather than do a full swap __________________ Scion Tc-strup racing header, CAI, Ground Kit, NOS 100shot, Custom suspension, Doc. I 50% STS MM 4 Banger club: Senior Ricer "Horsepower sells cars, torque wins races." -Carroll Shelby Thanks To My Sponsors: Strup Performance

April 2nd, 2008, 12:04 AM

Onemanzu

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Torres!! where are you!

you can pull a 4.2 out of an F150, you will have to transfer somethings and what not, there was a user on here either by the name of stephen or 99mustangV6 or something, can't remember but he swapped a 4.2 out of an f150 after he blew his up

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Originally Posted by omz

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April 2nd, 2008, 12:28 AM

Orangester

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Originally Posted by GreenFaleen

Answer to all is yes, but you might as well just get a 4.2L stroker kit rather than do a full swap

I was thinking of building the 4.2 outside of my car and when it's ready, swap it in with a friend over a weekend instead of having to spend more time ripping down my block.

April 2nd, 2008, 12:39 AM	#5
itschristorres8 SP00LIN V6 2000 Mustang V6 unknown @390 Join Date: Aug 2006 Location: south florida Posts: 14,619	yes you can do that there are truck guys that use v6 power products and are fast __________________ 437rwhp and 402rwtq through a V6 on a stock bottom end

April 2nd, 2008, 10:33 AM

GreenFaleen

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Originally Posted by Orangester

I was thinking of building the 4.2 outside of my car and when it's ready, swap it in with a friend over a weekend instead of having to spend more time ripping down my block.

oh than yeah pull it out, and go to town lol. just before you start throwing money into it, tear it down and make sure everything is good

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April 2nd, 2008, 04:27 PM	#7
99v6stang Enthusiast Join Date: Dec 2006 Posts: 758	Yes a 4.2 will drop right in. You just need a mustang upper intake as the 4.2 wont fit under the hood. you will also need a new flexplate if you are not 01 or up. You would also need a newer pulley, or just use the one from the f150. Everything else should work fine and almost all parts are interchangable __________________ My car ---- (m112 in progress)

April 2nd, 2008, 04:39 PM	#8
dgt_mustang Enthusiast 01 mustang Join Date: Jun 2007 Location: goose creek Posts: 932	hey, now im interested in this swap, how much power does the 4.2 make over a 3.8? if you do go with a 4.2 swap do you still look for upgrades for a mustang engine or look for the f150 side? __________________ LEAVE REP POINTS WHERE NEEDED!!! 2001 mustang V6 CAI,Tuner,Cobra Rims To come: UDP, T-lok, 3.73, full exhaust setup W/flowmaster 40s, aluminum driveshaft.

April 2nd, 2008, 06:05 PM

Avaric3

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just stroking the 3.8 to a 4.2 will gain you about 20-25rwhp and 20-25rwtq

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Originally Posted by 2006GTARPD3

Supercharged? I thought SRT stood for Single Rear Turbo...?

April 2nd, 2008, 07:19 PM	#10
obdnanr Enthusiast 2003 v6 340/373 - yay for belts Join Date: Nov 2007 Location: around Posts: 757	woah woah woah!! the 4.2 truck engine, couldnt that be stroked to like 4.6? woot? wait wait again stroked AND bored! ?! __________________ 4.2L, gforce t5, 8.8, d1sc, other shit. stang is down

April 2nd, 2008, 08:01 PM

#11

GreenFaleen

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Originally Posted by obdnanr

woah woah woah!! the 4.2 truck engine, couldnt that be stroked to like 4.6? woot?

wait wait again stroked AND bored! ?!

no its a stroked 3.8 block already

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April 2nd, 2008, 08:55 PM	#12
RALVAREZ26 Regular 2000 MUSTANG GT 14.2@96.53 Join Date: Jul 2007 Location: DALLAS Posts: 435	the 4.2 has 202hp and 252ft/lbs compared to 190hp and 220ft/lbs __________________ http://smokinperformance.com '00 GT cai,x-pipes w/flowmaster dumped, sct chip

April 2nd, 2008, 11:58 PM

#13

Avaric3

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Originally Posted by RALVAREZ26

the 4.2 has 202hp and 252ft/lbs compared to 190hp and 220ft/lbs

still a 3.8 mustang will gain about 20rwhp and 25 rwtq just from a 4.2 swap

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Originally Posted by 2006GTARPD3

Supercharged? I thought SRT stood for Single Rear Turbo...?

April 3rd, 2008, 10:26 AM	#14
dgt_mustang Enthusiast 01 mustang Join Date: Jun 2007 Location: goose creek Posts: 932	when looking for mods to do to that engine, are you gonna be looking at 3.8 parts or finding 4.2 parts? __________________ LEAVE REP POINTS WHERE NEEDED!!! 2001 mustang V6 CAI,Tuner,Cobra Rims To come: UDP, T-lok, 3.73, full exhaust setup W/flowmaster 40s, aluminum driveshaft.

April 3rd, 2008, 10:27 AM

#15

Onemanzu

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Originally Posted by dgt_mustang

when looking for mods to do to that engine, are you gonna be looking at 3.8 parts or finding 4.2 parts?

3.8

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Originally Posted by omz

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April 3rd, 2008, 12:42 PM	#16
justinsstang Enthusiast 1998 Mustang v6 Join Date: Feb 2007 Location: Poplar Bluff, Missouri Posts: 749	yea 20 hp gain... unless you've got an sn95... then your gettin hooked up hah seems alot more useful to do it to an sn95 than a new edge. __________________ Red '98 Mustang. Custom Dual Exhaust w/ fabbed X pipe. CAI. 17in Black Rims w/ Aluminum Lip. Alpine Head Unit and Type-S speakers in doors and decklid. 600w Bridged BOSS amp to two 12" Audio Bahn Blue Flame Series Subs.

April 4th, 2008, 12:42 AM

#17

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The swap will also make the engine reach it's peak hp and tq at a lower rpm. It gives you the low end that the v6's badly need.

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Originally Posted by 3.8Coastie

cheap - reliable - fast

pick two

April 4th, 2008, 01:49 AM

#18

3.8Coastie

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Originally Posted by V6 Stalker

The swap will also make the engine reach it's peak hp and tq at a lower rpm. It gives you the low end that the v6's badly need.

so does the m90

ill be doing the 4.2 swap sometime... just not anytime soon. ill just be stroking my engine rather than getting one from an f-150. torres damnit im tryin to get some business from ya! lol

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April 4th, 2008, 09:26 AM	#19
99v6stang Enthusiast Join Date: Dec 2006 Posts: 758	i would reccomend swapping the f150 engine in because otherwise you wont have your car for a few weeks unless you are buying a seprate 3.8 to stroke. __________________ My car ---- (m112 in progress)

April 4th, 2008, 10:30 AM

#20

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Originally Posted by obdnanr

woah woah woah!! the 4.2 truck engine, couldnt that be stroked to like 4.6? woot?

wait wait again stroked AND bored! ?!

You should read up on some of this, so when you get your car back together you don't sound like one of those guys who has a car and doesn't know where the spark plugs are.[right chris;P?]

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