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  #1  
Old May 26th, 2009, 07:36 PM
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barry f
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4.6 Question

To run a 4.6 in a defender, is it true you need to use a 4.2 cam?

What should an engine cost installed?
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  #2  
Old May 27th, 2009, 06:54 AM
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Phillip
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lots of talk here, search on the crower cams. Skys the limit on the cost of engine install.
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  #3  
Old May 27th, 2009, 09:50 AM
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J. Michael McCaig
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To install the 4.6 in your 94 you will need to convert the 4.6 to use a distributor. You will need to use the front cover off your 3.9 and you will need to install a cam that will drive the distributor. You can either use a 4.2 cam or an aftermarket cam. I used a Crower cam that I purchased from D&D Fabrications. They were a lot of help picking out the right cam for my application.
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  #4  
Old May 27th, 2009, 09:56 AM
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barry f
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thanks, this is actually for my 110 but it should be the same set up
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  #5  
Old May 27th, 2009, 10:01 AM
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john
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Barry keep me posted on what you learn and whether you or not you have trouble with smog. i want to do the same thing with my D90 but Im worried if I ever bring the truck back to LA that it wont pass.
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  #6  
Old May 27th, 2009, 10:02 AM
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barry f
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The smog thing is the least of my worries. British Car Service has the truck right now and they have ton the conversion a ton of times. My big issue is the massive amount of cash it is going to take.
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  #7  
Old May 27th, 2009, 10:26 AM
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john
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what did they quote you for the swap? Are you supplying the motor?
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  #8  
Old May 27th, 2009, 12:38 PM
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barry f
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British car Service will not let you bring your own parts. the rebuilt motor is 5200 not to mention the cam and other stuff needed - not including install
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  #9  
Old May 27th, 2009, 12:45 PM
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ouch now i see why you arent worried about smog. buy a motor for a couple grand and get a couple buddies and an engine hoist and you could do it yourself in a weekend.
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  #10  
Old May 27th, 2009, 01:02 PM
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Chris Hinkle
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Are you rechipping your computer?
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  #11  
Old May 27th, 2009, 01:16 PM
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barry f
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not sure what I am doing yet but British car service says there is no need
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  #12  
Old May 27th, 2009, 01:53 PM
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Next time you are there and see Stephen ask him to install power windows in your 110 and see what he says.
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  #13  
Old May 27th, 2009, 01:55 PM
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barry f
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Ha what will he say?
I am leaing toward rebuilding my current motor. Would mean doing the following right now
head gaskets, head bolts, cylinder head rebuilt, spark plugs, oil, filter, cooling fan clutch, oil pump kit, main bearing set, seal timing cover, rear main oil seal, rear main cap cross seals, front timing cover gaskets, power steering hoses, rear ball joint

Hey at least my truck will have some shiny new crap
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  #14  
Old May 27th, 2009, 02:02 PM
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He will freak out. Installing them on mine was such a nightmare and he ended up having to eat hours of labor that he swore he would never do it again.

Go to www.car-part.com and find yourself a good low mile 4.6. sounds like a lot of work for a 3.9.
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  #15  
Old May 27th, 2009, 02:02 PM
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3.9 and 4.2 are close enough (later updated chips were speced the same for both motors). Long term, you want to find a LWB ECU to swap in, but not strictly needed.
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  #16  
Old May 27th, 2009, 02:47 PM
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the problem with going 4.6 is you still need to do plenty of work and make changes so just getting a low mileage motor doesnt mean you are nearly done.
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  #17  
Old May 27th, 2009, 04:10 PM
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my mistake. i thought it was fairly straightforward but silly me Ive spent too much time swapping chevy 327s and 350s for 383 strokers etc should of know it would be more complicated with a land rover.
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  #18  
Old May 27th, 2009, 04:17 PM
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barry f
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In case anyone wants to know, this is what is needed:
4.6 ENGINE
EXHAUST FLANGE GASKETS
GASKET, EXHAUST MANIFOLD
MOTOR MOUNT KIT
THERMOSTAT & GASKET
4.2 CAMSHAFT
CRANKSHAFT GEAR R ROVER 2000
CAMSHAFT GEAR
TIMING CHAIN RR 4.6 2000

HEy it still may be easy but seems like a lot for me since I never did an engine before
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  #19  
Old May 27th, 2009, 04:44 PM
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i get it now but seems you could still have someone set up the engine for you for alot less and then drop it in. Why are the motor mounts different?
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  #20  
Old May 27th, 2009, 04:48 PM
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barry f
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Everyone says they could do it for less but then when I give the break down people are like oh yeah you need this and that.

Here is the thing, I am in it right now for 600 labor to figure out what was wrong, the heads are off, oil pan out, etc, bearing cap off. I could tow the truck away but then what?
I need an engine, cam, etc. . . .
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