Boring out to a 4.2L

ItaliStang · December 4th, 2008, 07:05 PM

good... that's what I was checking...

we get too many people here that talk about building their motors, or getting a turbo setup or something else big, and expect to be able to do it themselves, when 90% of the time they're just kids right out of HS dreaming big and think installing stuff like that is as simple as a bolt on...

I'm like you, I know how things work, but have trouble remembering the names of things...

so I retract my asshole statement

Ticket-Me-Yellow · December 4th, 2008, 07:09 PM

haha its ok i am a freshman in college butt ive been wrenchin on shit ever since i was a kid. but yea i dont know to much about all the boring out and shit like that. I can take it apart and put it back together i just need to to know what i need before i tear in this

408gt91 · December 4th, 2008, 09:01 PM

Pay close attn to Main bearings. Ive seen many a rookie put em in the wrong spot
and bang! they just blew 2k.

Ticket-Me-Yellow · December 4th, 2008, 10:15 PM

so how much up am I lookin at? I have full bolt ons

Onemanzu · December 5th, 2008, 12:15 AM

i would say about 220's ish... that is assuming you put in an aftermarket cam and also do some head work to support the cam.

if you retain the stock cam then don't get your hopes up.

Ticket-Me-Yellow · December 6th, 2008, 03:55 AM

all that money for 30 hp???? seems expensive

SleeperStang88 · December 6th, 2008, 12:06 PM

most of the rotating assembly is just building up your motor have a bigger potential

SleeperStang88 · December 6th, 2008, 12:10 PM

if you want to get some more power behind that v6 of yours, get p&p heads, p&p upper and lower intakes with some rr's, new valve springs, studs and a cam and possible some forged internals .........im only at about 165 rwhp and with all that ill be at around 220rwhp and even more when i get udp and a full exhaust.....so you could see about 220-240rwhp with your mods

stangcharger · December 6th, 2008, 02:12 PM

a well built 4.2L with sotck compression or less with C/H/I/exhaust should put down no less than 240rwhp. if you did you either set yourself up for boost with compression and cam, etc. or you did something wrong.

you should around be able to gain 1hp per cubic inch. a 4.2L is a 255-260 cubic inch.

Onemanzu · December 6th, 2008, 02:49 PM

Originally Posted by Ticket-Me-Yellow

all that money for 30 hp???? seems expensive

your rear wheels aren't at 190 horse power,

with a stroker kit, it might be.

Ticket-Me-Yellow · December 8th, 2008, 05:35 AM

Yes i do have 193 rwhp i dynoed it.

Snipes · December 8th, 2008, 06:59 AM

PM sent

rwboring · December 8th, 2008, 08:39 AM

Originally Posted by Ticket-Me-Yellow

haha its ok i am a freshman in college butt ive been wrenchin on shit ever since i was a kid. but yea i dont know to much about all the boring out and shit like that. I can take it apart and put it back together i just need to to know what i need before i tear in this

if you dont know the terms very well who would let you into their engine?

Originally Posted by Ticket-Me-Yellow

all that money for 30 hp???? seems expensive

the point is you dont gain much from it... you just gain potential more then anything... best advise.... geta blower then when it takes a shit get a bottom end

WLJohnson05 · December 8th, 2008, 11:20 AM

man i dont recommend you doing this urself unless u have another car that ur prepared to drive if u mess up the mustang....putting together and engine takes a little more than some wrenching. theres a lot of little shit that you can easily mess up. just leave it to the shop. maybe they will let you watch what they are doing some so u can learn about it.

itschristorres8 · December 8th, 2008, 06:47 PM

Originally Posted by stangcharger

the bore doesnt do it. it is the 4.2L crank mainly. i am bored and stroked but that didnt give me the 4.2L.

Redlined Performance Mustangs :: Rotating Assemblies :: RPM 4.2L Forged Rotating Assembly

this is the way to go. and get the upgraded ROSS piston rings.

+1

mustangman02232 · December 8th, 2008, 09:14 PM

you can do a .030 boar on the 4.2 and punch it out to a 4.3, you can find a 4.2 for ~$300 with low miles out of a 97+ f150.

super six motorsports or delk can help with extra goodies

Onemanzu · December 9th, 2008, 02:15 AM

Originally Posted by mustangman02232

you can do a .030 boar on the 4.2 and punch it out to a 4.3, you can find a 4.2 for ~$300 with low miles out of a 97+ f150.

super six motorsports or delk can help with extra goodies

RPMustangs is going to get my vote out of the best known V6 mustang engine workers, SSMs is just expensive, same with delk.

stangcharger · December 9th, 2008, 09:53 AM

Originally Posted by mustangman02232

you can do a .030 boar on the 4.2 and punch it out to a 4.3, you can find a 4.2 for ~$300 with low miles out of a 97+ f150.

super six motorsports or delk can help with extra goodies

they call it a 4.3L but in reality it is still a 4.2L. we had this discusiion on v6power. it comes out to like 4.27 or something like that.

just some useful info.

December 4th, 2008, 09:01 PM	#23
408gt91 Regular Join Date: Aug 2007 Location: ya mudda's house Posts: 204 iTrader: 0 reviews	Pay close attn to Main bearings. Ive seen many a rookie put em in the wrong spot and bang! they just blew 2k. __________________ 408stroker/tf track heats/scat crank/h beams/srs fordged/351sportsman block/trick flow rrkrs/msd dist/edelbrock victor5.8intake/aeromotive fuel system/accufab 80mmtb/pro-m80mm,maf etc.

December 5th, 2008, 12:15 AM	#25
Onemanzu ¡ʇsnq ɹo uʍop ǝpısdn Join Date: Oct 2006 Location: Looking for free hand jobs in poland springs nebraska... silly gooses Posts: 12,551 Blog Entries: 1 iTrader: 0 reviews	i would say about 220's ish... that is assuming you put in an aftermarket cam and also do some head work to support the cam. if you retain the stock cam then don't get your hopes up. __________________ My Foz

December 6th, 2008, 02:12 PM	#29
stangcharger Enthusiast Join Date: Sep 2008 Location: OKC, OK Posts: 806 iTrader: 0 reviews	a well built 4.2L with sotck compression or less with C/H/I/exhaust should put down no less than 240rwhp. if you did you either set yourself up for boost with compression and cam, etc. or you did something wrong. you should around be able to gain 1hp per cubic inch. a 4.2L is a 255-260 cubic inch. __________________ 436rwhp/378rwtq tuned by HPP www.hppmotorsports.com - www.stangcharger.com - www.rpm-mustangs.com

December 8th, 2008, 11:20 AM	#34
WLJohnson05 MM's Database Error 2004 Mustang V6 322.8 rwhp Join Date: Mar 2007 Location: VA Posts: 13,285 iTrader: 9 reviews	man i dont recommend you doing this urself unless u have another car that ur prepared to drive if u mess up the mustang....putting together and engine takes a little more than some wrenching. theres a lot of little shit that you can easily mess up. just leave it to the shop. maybe they will let you watch what they are doing some so u can learn about it. __________________ I'm trying to get rid of this stuff, feel free to make me an offer!: SCT Mass Air Flow Sensor $200 Tial Wastegate Springs $40 (10psi and 3.6psi)

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December 4th, 2008, 07:09 PM	#22
Ticket-Me-Yellow Hardcore Enthusiast 2001 Mustang V6 14.89@93 mph Join Date: Nov 2006 Location: Hawthorn Woods, IL Posts: 1,187 iTrader: 3 reviews	haha its ok i am a freshman in college butt ive been wrenchin on shit ever since i was a kid. but yea i dont know to much about all the boring out and shit like that. I can take it apart and put it back together i just need to to know what i need before i tear in this

December 4th, 2008, 10:15 PM	#24
Ticket-Me-Yellow Hardcore Enthusiast 2001 Mustang V6 14.89@93 mph Join Date: Nov 2006 Location: Hawthorn Woods, IL Posts: 1,187 iTrader: 3 reviews	so how much up am I lookin at? I have full bolt ons

December 6th, 2008, 03:55 AM	#26
Ticket-Me-Yellow Hardcore Enthusiast 2001 Mustang V6 14.89@93 mph Join Date: Nov 2006 Location: Hawthorn Woods, IL Posts: 1,187 iTrader: 3 reviews	all that money for 30 hp???? seems expensive

December 6th, 2008, 12:06 PM	#27
SleeperStang88 Regular 2000 Mustang V6 need to run at track Join Date: Sep 2008 Location: Michigan Posts: 355 iTrader: 2 reviews	most of the rotating assembly is just building up your motor have a bigger potential

December 6th, 2008, 12:10 PM	#28
SleeperStang88 Regular 2000 Mustang V6 need to run at track Join Date: Sep 2008 Location: Michigan Posts: 355 iTrader: 2 reviews	if you want to get some more power behind that v6 of yours, get p&p heads, p&p upper and lower intakes with some rr's, new valve springs, studs and a cam and possible some forged internals .........im only at about 165 rwhp and with all that ill be at around 220rwhp and even more when i get udp and a full exhaust.....so you could see about 220-240rwhp with your mods

December 8th, 2008, 05:35 AM	#31
Ticket-Me-Yellow Hardcore Enthusiast 2001 Mustang V6 14.89@93 mph Join Date: Nov 2006 Location: Hawthorn Woods, IL Posts: 1,187 iTrader: 3 reviews	Yes i do have 193 rwhp i dynoed it.

December 8th, 2008, 06:59 AM	#32
Snipes Regular Join Date: Dec 2008 Location: Westchester County NY Posts: 75 iTrader: 1 reviews	PM sent

December 8th, 2008, 09:14 PM	#36
mustangman02232 Newbie 2002 Mustang V-6 15.8 @ 89 mph 2.4 60' siezed R-calipers Join Date: Dec 2008 Location: Ludlow MA Posts: 17 iTrader: 0 reviews	you can do a .030 boar on the 4.2 and punch it out to a 4.3, you can find a 4.2 for ~$300 with low miles out of a 97+ f150. super six motorsports or delk can help with extra goodies

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