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3.8 to 4.2 question

844 Views 9 Replies 7 Participants Last post by  itschristorres8, 
9
alrite so heres wut im wanting to do ....i have a 97 v6 mustang it a 3.8 single port...and im wanting to put the 4.2 bottom end off of a 97 and up f 150.....and then im wanting to put the 99-04 3.8 split port heads and upper/lower intake on top of that...just to throw ppl for a loop they will never exspect the 4.2 bottom end ......how hard would this be to do and how much of a gain would i get....i kno the 4.2 block bolts up but other then that im not 100% sure
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I
you wont get much extra power from just have the 4.2L bottom end
nothing worth doing at least if your leaving the bottom end stock
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the 4.2L short block will just have a longer stroke with a little more torque maybe some hp

assuming he's pulling it out of a 4.2L F150 thats a stock bottom end
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