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BigJ

6cyl SWB?

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You're going to have to chop the bulkhead to fit the 6 anyway, though... Unless you've got a 6 pot bulkhead already, which means fitting a V8 requires no cutting and drops straight in. 

I don't think three hours in a series with any engine does anyone's eardrums any good :lol:

 

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Not completely true lo-fi, I fitted a V8 to a S2 without cutting the bulkhead. Some slight massage with a hammer and custom exhaust manifolds (or atleast the LHS one) will get you there. If you can dig out my S2 thread there should be some pictures :) 

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A V8 can be as quiet or as loud as you like, most of the noise in a Land Rover is from the transmission (unless you fit a rorty exhaust). Our 127 ambulance has a V8 and the loudest thing in that is the overdrive, even with extra soundproofing. Mind you, it's a lot quieter on the motorway than a TDi even then.

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3 hours ago, lo-fi said:

You're going to have to chop the bulkhead to fit the 6 anyway, though... Unless you've got a 6 pot bulkhead already, which means fitting a V8 requires no cutting and drops straight in. 

I don't think three hours in a series with any engine does anyone's eardrums any good :lol:

 

I don’t think you do need to chop the bulkhead to fit the 6 pot as the gearbox will remain in the same position unlike on the 109 where it sits further back and thus needs the additional room around the bellhousing.

On the 88 the engine will sit further forward than the 4 pot and its the clearance between the fan and radiator that is critical hence the need for an electric fan most likely. Worst case is trimming some material from the front panel to move the rad forward an inch or two.

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35 minutes ago, FridgeFreezer said:

A V8 can be as quiet or as loud as you like, most of the noise in a Land Rover is from the transmission (unless you fit a rorty exhaust). Our 127 ambulance has a V8 and the loudest thing in that is the overdrive, even with extra soundproofing. Mind you, it's a lot quieter on the motorway than a TDi even then.

If I recall correctly from days gone by, there’s really only room for one silencer on an 88 which limits the number and sizes of boxes that can be fitted without strangling the V8. I used to do Billing and back without any problems but I was 20 odd years younger then...<_<

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54 minutes ago, Bigj66 said:

don’t think you do need to chop the bulkhead to fit the 6 pot as the gearbox will remain in the same position unlike on the 109 where it sits further back and thus needs the additional room around the bellhousing

I'm afraid it's not that simple... The passenger footwell is chopped considerably to clear the valve chest in the same fashion you would to a 4 pot to fit a V8, as well as having the extra tunnel clearance.

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1 hour ago, lo-fi said:

I'm afraid it's not that simple... The passenger footwell is chopped considerably to clear the valve chest in the same fashion you would to a 4 pot to fit a V8, as well as having the extra tunnel clearance.

Ok, cheers. Thanks for the heads up on that. I need to get my tape measure out again then. That said I’m sure Jeremy said his bulkhead didn’t need to be modified in his SWB due to the gearbox remaining in its current position.

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No drama. Not trying to put you off, but I've had these things side by side recently. If Land Rover could make it fit without going another bulkhead version, I'm sure they'd have done so... And it's possible you might be able to ram it in without changing the bulkhead, but cause yourself a nightmare when it comes time to adjust the valve clearances. Same as a V8 will "fit", but you'll never get the rear plugs out. 

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I've a 2a 6 cylinder bulkhead in the container. I'll be using the dash panels to convert a TDI bulkhead to 2a style.

Happy to swap for a similar 4 cylinder 2a bulkhead. If it helps.

I think it needs foot well repairs, and can take some photos.

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12 hours ago, Gazzar said:

I've a 2a 6 cylinder bulkhead in the container. I'll be using the dash panels to convert a TDI bulkhead to 2a style.

Happy to swap for a similar 4 cylinder 2a bulkhead. If it helps.

I think it needs foot well repairs, and can take some photos.

Mines a S3 so not much good to you but in any case I think I need to get my 6 pot engine bolted up to the gearbox and see how things look. First impressions are that the access to the valve chest is restricted (awkward) more by the height of the N/S wing than the width of the bulkhead but wings are easy enough to remove if needs be.

That said it’s a fair point about maintenance as I don’t want to design in issues for the future, quite the opposite in fact. I think it’s only when I have the engine sat in the bay and bolted up to the gearbox that I will really see what level of access I have to the main components. I could, retrospectively, modify the bulkhead if that was my only option to keep the engine. If I can’t then I either need to abandon the idea or fit a V8 and try to overcome the issues with noise. If I need to modify the bulkhead for the 6 pot though then I might as well look at the V8 option.

The 3.9 Serp in my RRC Softdash pulls like a train 👍 but the elektriktrikery puts me off.🤨

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Bolting it up and taking a good look, along with some measurements sounds like a solid plan to me. I spent a couple of days with my V8 on blocks moving it about the bay until I was 100% happy everything would clear and fit before I committed to making brackets and engine mounts. 

My 3.9 serp on carbs also pulls like a train, by the way ;)

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There's less wires to get a Hotwire V8 running than to wire up both your headlamp bulbs.

 

 

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Cheers Jeremy, they are really helpful 👍. Can you get access to the exhaust valves ok in that space between the bulkhead and valve chest?

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I am pleased :) 

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I think I may have met my match with this conversion. I know I’m going to have to use the flywheel off the Rover P5 manual car due to the crank bolt pattern however, the ring gear that was originally on the auto box engine I have is around 15mm larger in diameter than the LR 2.6 flywheel and thus has a larger housing for the ring gear to sit in.

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If it ends up that the P5 flywheel is the same diameter as the auto ring gear and not the same as the smaller 2.6 then that would mean it would require the larger housing which my gearbox will not mate to.

I’ll need to check with a P5 specialist so fingers crossed.

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If you do end up having to use the larger flywheel and therefore housing, could a machinist not make an adapter? Should be fairly straight forward, a piece of plate cut into a ring shape with holes in the outside to match the engine and holes on the inside edge to match the gearbox? 

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1 hour ago, Keeper96 said:

If you do end up having to use the larger flywheel and therefore housing, could a machinist not make an adapter? Should be fairly straight forward, a piece of plate cut into a ring shape with holes in the outside to match the engine and holes on the inside edge to match the gearbox? 

It’s a possibility but I’m tight for space between the front pulley and the rad as it is so pushing the engine further forward may create additional problems. Best chance is the manual flywheel from the Rover is the same diameter as the LR one.

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Putting aside the flywheel issue does the 2.6 flywheel housing fit the back of the block? I'm sure this is possible , I recall several 3.0 IOE conversions back in the early 80's and I don't recall any conversion housings either .

cheers

Steve b

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2 hours ago, steve b said:

Putting aside the flywheel issue does the 2.6 flywheel housing fit the back of the block? I'm sure this is possible , I recall several 3.0 IOE conversions back in the early 80's and I don't recall any conversion housings either .

cheers

Steve b

Yes, as far as I can see the housing bolt holes are all in the same position it’s just the housing itself which is slightly wider.

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A 2.6 flywheel could be made to fit by a good machine shop if all else fails to set things correct for the gearbox

cheers

Steve b

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15 hours ago, steve b said:

A 2.6 flywheel could be made to fit by a good machine shop if all else fails to set things correct for the gearbox

cheers

Steve b

Weld up the existing bolt holes and redrill?

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