Engine Change
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Junior User
Joined: Dec 2005
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Engine Change
What all is needed to replace a 302 with a 460 in a f150. Will the motor mounts bolt up? Will the front springs support all of the extra weight? What tranny will i need? Also will I need to get a new longer/shorter drive shaft?
Also what about a 351 will all of my parts from the 302 fit on a 351? Injecters? Intake? Heads? Manifolds?
Thanks
Brett
Also what about a 351 will all of my parts from the 302 fit on a 351? Injecters? Intake? Heads? Manifolds?
Thanks
Brett
Post Fiend
Joined: Mar 2002
Posts: 19,402
Likes: 38
From: Bonita Springs FL
You'll need new motor mounts, a new tranny, and maybe a new driveshaft to go with the new tranny. Spring should be OK, but you'll probably need an alignment when you're done.
As far as I know, none of the parts will bolt up. They are two motors from a different family of engines. Well, injectors might. Not sure on those. But the hard parts are all different.
As far as I know, none of the parts will bolt up. They are two motors from a different family of engines. Well, injectors might. Not sure on those. But the hard parts are all different.
Senior User
Joined: Dec 2004
Posts: 376
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From: Ballard, WA
There are swap kits available for such purposes. I have never bought one myself, as I have the resources to make the parts, but if you don't they are another option...or at least a pointer as to what else you might need.
Try http://www.landlproducts.com/ and see if that gives you an idea.
Try http://www.landlproducts.com/ and see if that gives you an idea.
Post Fiend
Joined: Nov 2001
Posts: 14,947
Likes: 6
From: Topsfield, MA
I'd say no on springs. You're going to be adding about 500+ lbs between the weight of the 302 vs 460 and the old tranny vs new bigger tranny. When I moved from a 302/m5 to a 351 based 393 and zf tranny I lost about an inch in my front suspension - and I have stiff 6" lift coils. The 393 has aluminium heads on it that shaved about 50 lbs. The 302 is pretty light - the 460 is not.
It's a totally different setup between 460 and 302 - you'll need a lot of new/different stuff. Might want to look into a 351 or 351 stroker if you're looking for big power. Or, you can certainly go with a 460 - but it won't be as easy/cheap.
It's a totally different setup between 460 and 302 - you'll need a lot of new/different stuff. Might want to look into a 351 or 351 stroker if you're looking for big power. Or, you can certainly go with a 460 - but it won't be as easy/cheap.
Last edited by MustangGT221; Jan 3, 2006 at 08:34 PM.
Elder User
Joined: Nov 2004
Posts: 684
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If you are looking for something stronger I would say you should with the 351.
The 351, 302, and 300 I6 all have the same bell housing pattern, but the 460 has a wider pattern.
If you go from 302-460 then you are going to need mounts and all the other stuff already mentiond, but you may need a brain box, and wiring to go along with it. I am not sure but I think those two engines use a different high pressure fuel pump also.
Is the truck in question a 5spd or an automatic.
I am not sure about the autos, but the bellhousing on the 5spd is part of the casing, so you will have to go with a new tranny, and the only manual tranny option for the 460 is the ZF (depending on the year).
If you are looking for a challenge I say go for it, but if you just want a bigger engine with more power I suggest you go with the 351.
The 351, 302, and 300 I6 all have the same bell housing pattern, but the 460 has a wider pattern.
If you go from 302-460 then you are going to need mounts and all the other stuff already mentiond, but you may need a brain box, and wiring to go along with it. I am not sure but I think those two engines use a different high pressure fuel pump also.
Is the truck in question a 5spd or an automatic.
I am not sure about the autos, but the bellhousing on the 5spd is part of the casing, so you will have to go with a new tranny, and the only manual tranny option for the 460 is the ZF (depending on the year).
If you are looking for a challenge I say go for it, but if you just want a bigger engine with more power I suggest you go with the 351.
Post Fiend
Joined: Nov 2001
Posts: 14,947
Likes: 6
From: Topsfield, MA
There are some interchangeable parts - making the swap easier - but not all.
Intake and exhaust is a no because the 351 is wider.
Heads are a yes, they're interchangeable.
If you're going to use a stock or relatively stock 351, you'd need it's speed denity computer - or you can switch to MAF instead (better).
Motor mounts are the same so you're all set there (you'll want to replace them while they're out).
Accessories swap over with a larger belt.
Some minor adjustments in vacuum lines and such are needed, easy enough. You'll need the thermactor tube that bolts to the back of the heads as the 351's is wider...
Think that is about it...
Intake and exhaust is a no because the 351 is wider.
Heads are a yes, they're interchangeable.
If you're going to use a stock or relatively stock 351, you'd need it's speed denity computer - or you can switch to MAF instead (better).
Motor mounts are the same so you're all set there (you'll want to replace them while they're out).
Accessories swap over with a larger belt.
Some minor adjustments in vacuum lines and such are needed, easy enough. You'll need the thermactor tube that bolts to the back of the heads as the 351's is wider...
Think that is about it...
