1991 RRC project lots of questions.
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Thread: 1991 RRC project lots of questions.

  1. #1
    FRESHMAN ROVER
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    August 6th, 2016
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    1991 RRC project lots of questions.

    So I'm getting a 1991 RRC from a guy I do part time work for. Mainly teardowns on Triumphs, MG, and Rover 3500 cars. Anyways in exchange for yanking the blown engine from the 91 I get the rest. Its not it too bad a shape otherwise a few dents and a missing center console cover but all the switches and things are there. Anyways Rovers don't pop up to much for sale much less parts in my area. Short of buying a whole other Range Rover I'm not getting an engine cheap. I was thinking small block Chevy and even though the adapter is almost $1000 for the one I found and I'm not positive it wasn't for a P38. What all would be involved in this swap exactly? I'd just be dropping in a basic engine no frills and bone stock. Also where in the hell do you find aftermarket wheels and lockers for these beasts. For my intentions I would like a wheel with a bit more offset than the factory aluminum wheels for stability. I've never really looked at a rover before now even though I always liked how they looked and after watching the 1987 Camel Trophy videos and some others online I'm very impressed with the chassis capability in stock or near stock form. Anyways thanks for any info and help. I may end up with more than one of these if I can get it going and like it.

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  3. #2
    FRESHMAN ROVER grnole's Avatar
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    Re: 1991 RRC project lots of questions.

    Hey! Welcome to the world of RR.. as far as engine swaps, you can use this forums search feature to see what other people are doing. If you want to utilize the 14cux engine management system built in, and the zf trans... your options are limited for cheap and easy. They chevy swaps I have seen have been few and far between.. most will agree that you should just pick up another rover motor and drop it in for simplicity.

    Aftermarket wheels are another issue. Are you looking to lift it? you can get away a 2" lift and upgrade to 31" tires no problem with just a coil spring lift. simple. If you want to go to 33" tires, you could find yourself upgrading springs, shocks, drive shafts, extended brake lines, radius and trailing arms.. It aint cheap, but mine came out great.

    I kept the stock 16x7" wheels and slammed on some big ole tires.

    Lockers, check out lucky8llc.com they offer a few options you can do, ARB makes air lockers, and they are the way to go, but after adding the compressor, and both lockers you will be up to about 2300 in parts.
    1995 4.2L RRC LWB Beluga Black Tan Leather 5" Rovertym lift

  4. #3
    FRESHMAN ROVER
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    Re: 1991 RRC project lots of questions.

    Well my other job and some other projects have gotten in the way but within the next couple weeks I should finally have the time to finish pulling the engine from the 91 RRC at this point mainly the threads here. I think I will end up with doing a 2+2 style lift and a swap similar to another members with either a 350 Small block Chevy or the Detroit built GM 6.2 Diesel backed by a 700R4 and an NP241D.

    Now that I've got the info to tackle the project I'm way more motivated. Before I wasn't sure I could swing it. I'll keep you guys posted and get some pics soon.

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  6. #4
    FRESHMAN ROVER miggit's Avatar
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    Re: 1991 RRC project lots of questions.

    If you're looking for info then Overfinch would be a good place to start.... they are a customiser in the UK and specialised in putting a 350ci chevy in the classic in the 80's and 90's, mainly for the Arab market, but there are a few floating about elsewhere. There are also conversions for Mercedes engines, most popular over here are the OM606 and OM605 which can be retro fitted with 'P' pumps and tuned up to 500 ish BHP!! There are also kits for Mazda, Isuzu and Nissan Diesel engines...

    As great fuel economy isn't at the top of everyone's list in the USA, as you still benefit from stupidly cheap fuel compared to the rest of us in the western world ($1.53 per litre in the UK at the moment), think I'd be tempted to adapt the Overfinch conversion and drop in an LS.... although the figures for the Ford EcoBoost are very impressive, and there is a distinct advantage that it's 2 cylinders shorter...so it wont be such a squeeze!!
    ​Range Rover Classic 1988 Fueled by the Devil (2.4 VM Diesel)

  7. #5
    FRESHMAN ROVER
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    Re: 1991 RRC project lots of questions.

    I would actually prefer a diesel power plant of some kind I'm just not sure about the parts availability here in the US for some of them or even if that model ever came here. I'm just looking to build a DD that can tow a car trailer while knocking down decent mileage. I would need a lesson on the diesel engines as those I don't know much about.

  8. #6
    FRESHMAN ROVER miggit's Avatar
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    Re: 1991 RRC project lots of questions.

    The 2 Diesel conversions that spring to mind are the Mercedes OM606 (3lt 6cyl 24v) / OM605 (2.5lt 5cyl 20v) fitted with a manual 'P' pump, both can reach 500 bhp! But from what I understand they are a bit of a rarity your side of the pond... And there are a few Defenders (same as the RRC under the skin!) with a Cummings BT6 and 'P' pump... if some of the shows that I watch are to be believed then 1000+ bhp is achievable, but they are a heavy lump... I suppose that a BT4 might be a better option, especially size wise.

    Regarding the Merc conversion there is a company in Sweden that produces a conversion kit to mount on to the 4 speed ZF tranny or a 5 speed stick shift... although you can remote mount the lt230 transfer box from the manual Land Rover range so any box could be used.. so with a Mercedes I'd use the 6 speed, which by some spooky coincidence is the same unit used in the stick shift Dodge Rams!! And now we are back in Cummings BT6 territory!
    ​Range Rover Classic 1988 Fueled by the Devil (2.4 VM Diesel)

  9. #7
    FRESHMAN ROVER
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    Re: 1991 RRC project lots of questions.

    Sadly unless you can find a good deal which is rare anything cummins here in the states is pricey. You can thank the diesel truck kids for making the prices jump.

  10. #8
    FRESHMAN ROVER miggit's Avatar
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    Re: 1991 RRC project lots of questions.

    Well I've just had a look at fleabay and there are some Mercedes E class diesels in the states, you'll just need to find one that's had a knock!! The OM605/6 engines have an ally timing chain cover but the rest of the valve cover is black, late 90's cars are the ones to look for, and be aware that they did but turbo and non turbo engines... the fire breathers are turbo!!
    ​Range Rover Classic 1988 Fueled by the Devil (2.4 VM Diesel)

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