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L28 and LD28 similarities


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Hello. thank's for your reply.  Well I'm having severe ignition problems and to convert it to a fully mechanical form while saving as much money as possible is my goal.  Maybe if I could get a strongest ignition in the future I could convert the diesel to petrol?  I've heard that the heads are interchangeable but according to the gasket the oil and water galleries don't match?

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I'm not clear why you need to convert from Diesel to Petrol because of an ignition issue? LD28 blocks are taller than the regular L-series blocks. The cranks are longer stroker in the diesel which makes them more desirable for folks who want to run more displacement in L28 engines (petrol). But the head is quite different as you have mentioned, but I do know that LD28 blocks have been used for bigger displacement L-series (petrol engines). As to the oil and water galleries lining up I'm not sure why they would be different or how you can correct that? Perhaps custom machine work is required?

However you could save yourself a lot of effort simply by using a regular L28 motor if the plan is to go petrol over Diesel.

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