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Author Topic: 4.0 or 4.6  (Read 667 times)

Offline Weissbrewer

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4.0 or 4.6
« on: June 25, 2009, 07:51:52 AM »
Looking for an engine for my 2000 D2 cash and pick up available
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Offline Gt3454

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4.0 or 4.6
« Reply #1 on: June 25, 2009, 09:39:25 PM »
uh oh.. what happened?
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Grant
2000 Disco II - 2" OME, ARB, D1 CDL, Treadwright 33's
Front Quick Disconnects, +2" SS brake lines

Offline Daniel

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4.0 or 4.6
« Reply #2 on: June 26, 2009, 07:40:53 AM »
Don't even waste the time getting another 4.0. If you need a motor, get the 4.6; you'll be so much happier in the end. That 50 lbs of torque makes a big difference in our heavy rigs. Good luck.
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2002 LR DII SE Kalahari Edition. 4.6, locking CDL, and Detroits.
1994 LR RRC LWB. EAS conversion w/ +2" springs.
1968 LR SIIA 88" Hybrid, with 109" 1 ton axles SOA. Needs Tartis for completion.

1979 LR SIII 5 door 109 SW, 11 seater. Sold, 09'.
1997 Disco I Bobtailed buggy conversion. Sold, 11'.

Offline whatroad

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4.0 or 4.6
« Reply #3 on: June 26, 2009, 07:20:30 PM »
I'll second that! I'm just waiting for my 4.0 to pop. 4.6 is the way to go. The truck will become more of a pleasure to drive.
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Offline TightButWillFit

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4.0 or 4.6
« Reply #4 on: June 26, 2009, 07:42:20 PM »
put a 350 or something in it?
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WHEN IN DOUBT THROTTLE OUT! :D

Offline Daniel

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4.0 or 4.6
« Reply #5 on: June 27, 2009, 07:34:46 AM »
Quote from: TightButWillFit;17851
put a 350 or something in it?


Now there's a disgusting thought!!!

4.6 Bosch motor. Chip it. Borla full exhaust, with hi-flow s.s. sport cats. Snorkel, with hi-flow filter. And while it's going in there port and polish the heads and go to an RPI cam.

Close to 250-260 hp, and 350-370 tq.
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2002 LR DII SE Kalahari Edition. 4.6, locking CDL, and Detroits.
1994 LR RRC LWB. EAS conversion w/ +2" springs.
1968 LR SIIA 88" Hybrid, with 109" 1 ton axles SOA. Needs Tartis for completion.

1979 LR SIII 5 door 109 SW, 11 seater. Sold, 09'.
1997 Disco I Bobtailed buggy conversion. Sold, 11'.

Offline Greatdivide1

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4.0 or 4.6
« Reply #6 on: June 27, 2009, 08:31:28 AM »
hrmmm ls series chevy stock everything minus cam,intake, and new program.......460++hp and wellover 500trq.......thousands less then the lower output of the more built rover motor.......not a hard choice...........but hey what do i know lol Im still rockin a 3.9lol
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Offline whatroad

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4.0 or 4.6
« Reply #7 on: June 27, 2009, 08:34:23 AM »
Or build it into a 5.2, convert to a manual, with a tornado( Mark Adams) chip and you'll be in the 325hp area.

Ben a 350 isn't as easy as that. Can be done, but then you have to go through and design the BCU to operate along with the ECU that currently isn't tied into a factory motor, ie. fuel injection, etc.

It would be a HUGE P.I.T.A. and it's not a valuable move and a poor investment choice. If you were to try to sell down the road, your potential buyers list would be very short.

I mean come on Ben, I thought you were a "Mostly Old Parts And Rust" kinda guy.....why not a Hemi?................. ;-)

Follow up post:

Quote from: Greatdivide1;17856
hrmmm ls series chevy stock everything minus cam,intake, and new program.......460++hp and wellover 500trq.......thousands less then the lower output of the more built rover motor.......not a hard choice...........but hey what do i know lol Im still rockin a 3.9lol


True Don, but you're not comparing apples to apples. A D2 isn't as friendly to that type of a swap, if you still want to have a " correctly" functioning truck. Like power windows, seat and all that jazz. Agreed on the price difference though. Rover junk is too expensive for what it truly is.
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Offline Greatdivide1

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4.0 or 4.6
« Reply #8 on: June 27, 2009, 09:18:05 AM »
Agreed the savings on the motor would not cover the cost of getting everything to work as designed again.
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Offline NHwheelin

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4.0 or 4.6
« Reply #9 on: June 28, 2009, 06:39:29 PM »
So is a 4.6 a direct bolt in on a D1 or are there mods that need to be done?
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97 Discovery

Offline Daniel

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4.0 or 4.6
« Reply #10 on: June 29, 2009, 07:49:13 AM »
Yeah; a 4.6 is a bolt in and go. I would recommend however, switching to the electronically controlled 4HP24E transmission out of the DIi at the same time, since it is designed to work with the motor.

As far as our more (americanized) brethren, who I thought were actually mechanics; let's not forget that putting in a chevy ( built or not) also means changing the t-case, the transmission, and some serious upgrades to the axles and diffs so you could actually use the torque. No one makes adapters for american engines (non-buick 215 derived) to work with the ZF trans we are using, and all t-case adapters between LT230 and american trans, or ZF trans and american t-cases are all one-offs.
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2002 LR DII SE Kalahari Edition. 4.6, locking CDL, and Detroits.
1994 LR RRC LWB. EAS conversion w/ +2" springs.
1968 LR SIIA 88" Hybrid, with 109" 1 ton axles SOA. Needs Tartis for completion.

1979 LR SIII 5 door 109 SW, 11 seater. Sold, 09'.
1997 Disco I Bobtailed buggy conversion. Sold, 11'.

Offline whatroad

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4.0 or 4.6
« Reply #11 on: June 29, 2009, 05:14:48 PM »
I'm going to double check, but I'm almost positive there's an adapter Daniel.

Besides, they're not hard to make.
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Offline Greatdivide1

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4.0 or 4.6
« Reply #12 on: June 29, 2009, 06:06:33 PM »
from what i have seen a monkey could fab up the engine to trans adaptor lol. Not a big deal there. And also i have seen a couple people on random sites fab up 700r4 to lt230 adaptors. seams to me all ya really need is a bridgeport and some time.......again no biggie. As for the upgrades to the axles I will readly agree with you that that should be done!!
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Offline whatroad

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4.0 or 4.6
« Reply #13 on: June 29, 2009, 06:51:52 PM »
No Bridgeport needed Don. A router and a $15 carbide bit works great in Alum.

Agreed on axles X3. Rover axles are too weak, even when " upgraded".
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Offline Weissbrewer

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4.0 or 4.6
« Reply #14 on: June 30, 2009, 12:01:28 PM »
Quote from: Gt3454;17839
uh oh.. what happened?
slipped liner
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