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3.8 to 4.2 question

844 Views 9 Replies 7 Participants Last post by  itschristorres8
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 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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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
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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