Changing Vehicle Engine Capacity
Discussion
Does anyone know what the process is for changing a vehicle engine capacity? I have a land rover on the V5 as a Turbo Diesel 2.2 litre but it has a chevy 350 5.7 Litre.
My vehicle already attracts attention (wanted and unwanted) and the last thing I need is the plod pulling me and issuing a large number of fines and points (my tyres stick out)
My vehicle already attracts attention (wanted and unwanted) and the last thing I need is the plod pulling me and issuing a large number of fines and points (my tyres stick out)
aj91 said:
Does anyone know what the process is for changing a vehicle engine capacity? I have a land rover on the V5 as a Turbo Diesel 2.2 litre but it has a chevy 350 5.7 Litre.
My vehicle already attracts attention (wanted and unwanted) and the last thing I need is the plod pulling me and issuing a large number of fines and points (my tyres stick out)
I would inform the DVLA about the engine swap and any other notifiable changes e.g. colour and advise your insurance company about all modifications. Sticky out tyres are a no-no I believe.My vehicle already attracts attention (wanted and unwanted) and the last thing I need is the plod pulling me and issuing a large number of fines and points (my tyres stick out)
You need a engineers report, covering all mods. When I did a mk1 escort yb cosworth conversion, because different places did various parts of the job, it was a ball ache getting a report. Although I declared all mods to insurance, I never changed the v5 and had no problems in the 12 years I owned the car. Before anyone declares ‘fraud’ , it was a historic car with no road tax and I mot’d it every year.
sideways man said:
You need a engineers report, covering all mods. When I did a mk1 escort yb cosworth conversion, because different places did various parts of the job, it was a ball ache getting a report. Although I declared all mods to insurance, I never changed the v5 and had no problems in the 12 years I owned the car. Before anyone declares ‘fraud’ , it was a historic car with no road tax and I mot’d it every year.
It’s not fiscal fraud, but still renders the V5 invalid.Riley Blue said:
I would inform the DVLA about the engine swap and any other notifiable changes e.g. colour and advise your insurance company about all modifications. Sticky out tyres are a no-no I believe.
Insure company already know, I have heavily modified 4x4 insurance. I've just done a colour change today because it was imported as blue on the V5 for some reason but the previous owner repainted as gun metallic grey.
Once DVLA are informed, do I need the engineers report to accompany the notification to DVLA as I understand?
What could the DVLA request from here, could they request one of those IVA's?
I've had two experiences of dealing with the DVLA in this regard.
First time I sent the v5 for the car I had put a new engine/gearbox in, the v5 for the donor car , a letter explaining the engine+running gear was swapped. One car needed a new V5 with updated engine details, one to be scrapped.
I got a letter back telling me the donor car was scrap and they couldn't update the details on the other v5 without proof of where the engine came from
Many phone calls and I gave up. The car was insured correctly and the VED didn't change so I carried on.
The second time I did the same conversion I sent the V5, pictures of both cars next to each other, pictures of engine bay, a letter from the company that did the wiring and once again, confirmation that the car is scrapped and no updated CC on the other. I kept photocopies of the donor cars details in my glove box for 4 years until I sold the car.
First time I sent the v5 for the car I had put a new engine/gearbox in, the v5 for the donor car , a letter explaining the engine+running gear was swapped. One car needed a new V5 with updated engine details, one to be scrapped.
I got a letter back telling me the donor car was scrap and they couldn't update the details on the other v5 without proof of where the engine came from

Many phone calls and I gave up. The car was insured correctly and the VED didn't change so I carried on.
The second time I did the same conversion I sent the V5, pictures of both cars next to each other, pictures of engine bay, a letter from the company that did the wiring and once again, confirmation that the car is scrapped and no updated CC on the other. I kept photocopies of the donor cars details in my glove box for 4 years until I sold the car.
Mammasaid said:
Sounds like you bought it with the V8 fitted? Presumably you'll just need a letter from a garage stating the engine number and its capacity is what you are claiming it to be.I'm going to have to do this with my car once it's back on the road.
Tasmin200 said:
Sounds like you bought it with the V8 fitted? Presumably you'll just need a letter from a garage stating the engine number and its capacity is what you are claiming it to be.
I'm going to have to do this with my car once it's back on the road.
Yeah I imported it from Malta before the UK left the EU with the V8 already fitted, but it was done by the previous owner himself. I'm going to have to do this with my car once it's back on the road.
I built an Astra van for a buddy, 1.8 to 2.0 16V. Sent off change of details on the V5, a receipt for the engine and the MOT guy wrote a short letter stating the conversion was safe and to a good standard using OEM parts where possible. A new V5 with capacity and engine number duly arrived back in the post.
It might be that simple now!
It might be that simple now!
aj91 said:
Insure company already know, I have heavily modified 4x4 insurance.
I've just done a colour change today because it was imported as blue on the V5 for some reason but the previous owner repainted as gun metallic grey.
Once DVLA are informed, do I need the engineers report to accompany the notification to DVLA as I understand?
What could the DVLA request from here, could they request one of those IVA's?
What exactly has been done to it and what age is the vehicle?I've just done a colour change today because it was imported as blue on the V5 for some reason but the previous owner repainted as gun metallic grey.
Once DVLA are informed, do I need the engineers report to accompany the notification to DVLA as I understand?
What could the DVLA request from here, could they request one of those IVA's?
So far it seems you need to change fuel and engine displacement.
Be careful how you word things for the DVLA, the admin staff are not likely car people. You don't want to go down the IVA route, so keep it simple and concise on what you say and don't over complicate it.
Info is on the .gov site and the V5 on what you need to do. With a colour change they are likely to want photos too, usually of each side or 3/4 view showing the number plate.
I bought a mini van that had a 1275 instead of the original 850 and the v5 hadn't been updated.
I sent it off to dvla,it was returned saying I needed an accompanying letterhead from a garage to confirm the engine number and capacity.
Got that,sent it off and forgot all about it.About a year later I realised I hadn't received the new v5 so contacted dvla and they said it had been sent .....I still haven't got it lol
However I've checked and it has been changed on the dvla records so I've left it at that.
I sent it off to dvla,it was returned saying I needed an accompanying letterhead from a garage to confirm the engine number and capacity.
Got that,sent it off and forgot all about it.About a year later I realised I hadn't received the new v5 so contacted dvla and they said it had been sent .....I still haven't got it lol
However I've checked and it has been changed on the dvla records so I've left it at that.
300bhp/ton said:
What exactly has been done to it and what age is the vehicle?
So far it seems you need to change fuel and engine displacement.
Be careful how you word things for the DVLA, the admin staff are not likely car people. You don't want to go down the IVA route, so keep it simple and concise on what you say and don't over complicate it.
Info is on the .gov site and the V5 on what you need to do. With a colour change they are likely to want photos too, usually of each side or 3/4 view showing the number plate.
It's 1993 reg, with an 1983 chevy 350 short block engine, 5.7LSo far it seems you need to change fuel and engine displacement.
Be careful how you word things for the DVLA, the admin staff are not likely car people. You don't want to go down the IVA route, so keep it simple and concise on what you say and don't over complicate it.
Info is on the .gov site and the V5 on what you need to do. With a colour change they are likely to want photos too, usually of each side or 3/4 view showing the number plate.
I went through something similar years ago with a 200tdi engined 2a.
It was actually fairly simple and straightforward.
I took mine to the local village garage (who I had never used I might add), and asked them to write a letter on their paper to say that they can confirm that my car, reg xxxx has a replacement engine fitted (engine number xxxx) capacity xxxx. It literally was two sentences, hand written, signed and dated. They just wanted a tenner for it.
That letter got sent to the DVLA with the change form for capacity and engine number. Got a new V5 with the new details a few weeks later.
It was actually fairly simple and straightforward.
I took mine to the local village garage (who I had never used I might add), and asked them to write a letter on their paper to say that they can confirm that my car, reg xxxx has a replacement engine fitted (engine number xxxx) capacity xxxx. It literally was two sentences, hand written, signed and dated. They just wanted a tenner for it.
That letter got sent to the DVLA with the change form for capacity and engine number. Got a new V5 with the new details a few weeks later.
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