[xelitexjamx]

does anybody have any 4.2 liter swap information? i belive its the same block that sin the 97+ f150s can i just swap that right in? anybody have any information on the swap and/or good places for information on parts or places to actually order parts for this? anything would help. im not finding anything on this rite now:-/

[itschristorres8]

Originally Posted by xelitexjamx does anybody have any 4.2 liter swap information? i belive its the same block that sin the 97+ f150s can i just swap that right in? anybody have any information on the swap and/or good places for information on parts or places to actually order parts for this? anything would help. im not finding anything on this rite now:-/

it depends on what your looking for
doing the swap for the motor out of the f150 is pretty wasteful so such little power increase
it'd take approx 8hours+ with taking out the motor and what is required and putting in the motor with whats required, then putting on your old parts to that one.

and that motor is no stronger then our 3.8Ls just more torque and thats from the bigger stroke and also the intake design on those motors


now if your talking about 4.2L forged stroker motors thats a different story
you can use a 3.8L block have it bored up to .060 over use a 4.2L crank SCAT forged 6.125 rods and have a 4.3L motor.

or just forged rods and pistons 4.2L crank and bore the block to w/e your pistons are recommended to and have a built 4.2L motor ready for 600+rwhp and 700-900hp at the crank or more


so depends what motor
the f150 truck motor is a direct swap if your re-using your stock upper intake and your a split port motor
you'll also need to use your stock 99-04 returnless style fuel rail

[xelitexjamx]

so basically... if i just take my 3.8 liter stock mustang block, buy the rotating assembly. i will be pretty much set up for some serious power?? bore .060, buy forged pistons, rods, and crank and i should be good right?? i plan on doing my split port swap on it while the engine is out. i have a 93 mercury couger 3.8 in the car now. the old 3.8 mustang block i still have and is in my garage. wheres the best place i could ger the rotating assembly and how would the balancing work? i'd have to get a 4.2 liter flex plate correct?? same oil pan as the stock mustang? front cover too? i appreciate ur comment u got me facing the right direction now now i just gotta figure out the specifics

[itschristorres8]

you'll need the following
your block
clean, bore'd, honed and hex'd
if your using anything other then factory main studs you'll need a mainline hone since ARP studs require a different torque spec

4.2L crank
forged pistons
Forged connect rods
main bearings
rod bearings
lower overhaul gasket set
might as well do timing chain and the tensioner
piston rings


same oil pan and timing cover

the motor is going to have to be nuetrally balanced you machine shop can probably do that as well

Redlined Performance Mustangs sells the parts that you need for the best price
Im using his forged assembly for a build im doing for a guy on here(obdnanr) everything was balanced and came back to me in awsome condition. expect to pay about $300-450 at the machine shop and about $2k in parts listed above

[xelitexjamx]

what is hex'd?? im familiar with the clean, bore, and hone but idk what the hex'ed means. and by neutrally balanced do u mean internally balanced or no? i only ever heard of internally or externally balanced 2k is a lot of money for just parts... god damn. but i think im gonan start savin up to do it.. i wanna do this stuff once and do it right u kno?

[plove71387]

mik has awesome parts and hes a great guy to work with. i think mik was the cheapest i found when looking to get my motor parts. i looked for a bit more then a roatating assembly and right now the parts and a block are at the shop and starting to get pu together and then my car . . . good luck with what you choose, just dont try to take a cheap route it never works and something usually fails.

[itschristorres8]

Originally Posted by xelitexjamx what is hex'd?? im familiar with the clean, bore, and hone but idk what the hex'ed means. and by neutrally balanced do u mean internally balanced or no? i only ever heard of internally or externally balanced 2k is a lot of money for just parts... god damn. but i think im gonan start savin up to do it.. i wanna do this stuff once and do it right u kno?

hex'd hmm how to explain
basically if you look at a fresh motor you'll see kinda like x's in the cylinder walls. that is honed basically like tiny scratchs you cannot feel that help guide the oil down

a machine shop will do this for you normally

[Ninjawafers!]

if you want a 4.2 let chris take care of you

/thread

[itschristorres8]

Originally Posted by 3.8Coastie if you want a 4.2 let chris take care of you /thread

lol thanks bro

[Ninjawafers!]

no prob chris

[xelitexjamx]

ohh allright.. just when they hone it they cross hatch it or however u wanna say it. i gottta save up some money for a few months but i think i'll get my old motor apart and get the block all ready and what not. then i'll get my rotating assembly and do it up. thanks for all the info chris. it helps me out a lot. everybody seems to go 2 u when they need advice. whats ur opinion on the b*&m hammer shifter for auto?? and will j-mod work with a 95 mustang? it always says 96+ when i look at them:-/