Mud-club

Vehicle & Technical => Range Rover => Topic started by: kjj0506 on January 02, 2007, 04:55:44

Title: Anyone Swapped a 4.6 long block for a 3.9?
Post by: kjj0506 on January 02, 2007, 04:55:44
I have an icreasingly ticking , tired motor and am wondering if this swap is worth considering. I would probably try to find a motor out of a wreck to save some dough instead of a reman.
Title: Anyone Swapped a 4.6 long block for a 3.9?
Post by: Range Rover Blues on January 04, 2007, 15:59:23
I've bought an LSE for parts and it has the later 4.6 lump in it with the '93 LSE front end/pulley anciliaries so they must fit.  IIRC the end float of the camshaft is controlled by a plate on later engines and the chain cover on early one but it's no big issue.

If you find a 4.2 that's another option.

The one problem to get over is that the EFi won't cope with the bigger engine, according to RPi, who are trying to sell the chip, you need a Tornado ECU upgrade at about £300 :shock:

Anyway, the RPi website is a mine of usefull information on the tuning up of the Rvoer V8.

try WWW.rpiv8.com
Title: Ticking motor
Post by: kjj0506 on January 05, 2007, 04:06:51
I think I may just freshen and match port the heads , swap lifters and cam ( very mild - i hear there are some that actually liven up the mill while not decreasing mileage or drivability ) , put a chain on and a water pump and go drive places. Instead of spending a bunch of down time with the 4.6. I have been looking for a dead donor and have found nil.
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