4.2L stroker
Thread Starter
2nd Gear Member
Joined: Jun 2007
Posts: 466
From: Muskegon, MI
4.2L stroker
I can't seem to find any information online, so i thought i'd give it a post....
What kind of gains are expected going from a 3.8l to a 4.2l, with stock non-forged internals?
What kind of horsepower can the 4.2l handle?
What are some reasonable numbers if it was kept naturally aspirated and still maintain driveability?
Worth the swap?
I appreciate your input. thanks
What kind of gains are expected going from a 3.8l to a 4.2l, with stock non-forged internals?
What kind of horsepower can the 4.2l handle?
What are some reasonable numbers if it was kept naturally aspirated and still maintain driveability?
Worth the swap?
I appreciate your input. thanks
Buyer Beware
Joined: Oct 2007
Posts: 3,586
RE: 4.2L stroker
ORIGINAL: RED2000
I can't seem to find any information online, so i thought i'd give it a post....
What kind of gains are expected going from a 3.8l to a 4.2l, with stock non-forged internals?
What kind of horsepower can the 4.2l handle?
What are some reasonable numbers if it was kept naturally aspirated and still maintain driveability?
Worth the swap?
I appreciate your input. thanks
I can't seem to find any information online, so i thought i'd give it a post....
What kind of gains are expected going from a 3.8l to a 4.2l, with stock non-forged internals?
What kind of horsepower can the 4.2l handle?
What are some reasonable numbers if it was kept naturally aspirated and still maintain driveability?
Worth the swap?
I appreciate your input. thanks
Are you going to swap an f150 or get a stroker kit?
Are you going to touch the H/C/I?
Power it can handle will be determined by themoney spent on the internals *
You could put out 300rwhp if you kept it N/A*
Thread Starter
2nd Gear Member
Joined: Jun 2007
Posts: 466
From: Muskegon, MI
RE: 4.2L stroker
I was thinking of pulling the crankshaft and the rods out of an f150. I dont need the piston heads, right? cant i use mine?
I also was looking into a port and polish job on the heads, and upper/lower intake. I think a light cam is in my range also.
I also was looking into a port and polish job on the heads, and upper/lower intake. I think a light cam is in my range also.
5th Gear Member
Joined: Sep 2006
Posts: 2,528
From: New Braunfels, Texas
RE: 4.2L stroker
You don't need new rods, 96 and newer 3.8 rods are identical to 4.2 rods. Your block probally will have to be bored unless it is very low mileage, so it makes since to overbore it at the sdame time witch in that case you will need larger pistions.
5th Gear Member
Joined: Sep 2006
Posts: 2,528
From: New Braunfels, Texas
RE: 4.2L stroker
Read this thread regarding stroking, a lot of good info in there.
http://www.3.8mustang.com/forum/show...585&page=3
http://www.3.8mustang.com/forum/show...585&page=3
3rd Gear Member
Joined: Dec 2006
Posts: 803
From:
RE: 4.2L stroker
ORIGINAL: ARdoller
if you didnt bore your engine, how would you change your displacement?
if you didnt bore your engine, how would you change your displacement?
I wonder though, what a torque monster an overbored 4.2L V6 would be. lol
Thread Starter
2nd Gear Member
Joined: Jun 2007
Posts: 466
From: Muskegon, MI
RE: 4.2L stroker
I thought that changing the length of the stroke was what the 3.8 to4.2 swap was all about. Is it really necessarry to bore the cylinder out if i'm going to use the same pistons?