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HallanshakerBlatherskyte

LD28 Complete disassembled

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I wouldn’t mind a cylinder head and intake thrown in with it, but generally yes just the crankshaft is what everyone goes for. How much were you asking for it?

Edited by zeeboost

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5 hours ago, duffymahoney said:

The block is not what is getting used for the 3.5L builds that Rebello is doing.  It's worth some money.  

You mean it IS being used?

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5 hours ago, duffymahoney said:

The block is not what is getting used for the 3.5L builds that Rebello is doing.  It's worth some money.  

How is he building a 3.5 engine? What are the components? Bore and stroke?

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12 minutes ago, Patcon said:

A quick look through the article and I didn't see a reference to an LD28 block

A lot of people prefer the taller block so that they can offset grind the crank and still have a reasonable rod ratio. There are several better places to have such a conversation were it necessary, but the info is easily searchable on this forum or others. I posted this to gauge interest and get pricing feedback and would greatly appreciate any reply along those lines. Thank you!

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12 hours ago, HallanshakerBlatherskyte said:

A lot of people prefer the taller block so that they can offset grind the crank and still have a reasonable rod ratio. There are several better places to have such a conversation were it necessary, but the info is easily searchable on this forum or others. I posted this to gauge interest and get pricing feedback and would greatly appreciate any reply along those lines. Thank you!

Actually I believe the discussion is germane to the value of your parts. If the previous poster is correct that the LD block is the basis of a 3.5L motor, than your parts are worth more than simply using the taller block. Rod ratio doesn't effect displacement, which was my line of question. I am also pretty familiar with the forum and what info has been posted here and the ability to find that information or not. Just trying to help you determine the value of your parts, as I own 2 of these engines already. So I have a vested interest in helping you get the best price. B)

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On 12/7/2018 at 1:41 PM, Patcon said:

A quick look through the article and I didn't see a reference to an LD28 block

I believe they used an Australian RB30 crankshaft, 90mm stroke, 90mm bore on a sonic tested L28 block (rare), Honda sized rods due to crank journal sizes, Stuart Wilkins Motorsport big bore headers and also a custom flywheel as the rear of the crankshaft is thinner altering the flywheel clutch position. It's a little over 3.4L. 

Edited by riceburner
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Yep Gareth is right, RB30 crank needs considerable modification however once you machine an LD28 crank it's kind of negligible costs wise.. between the 2.

LD28 blocks are indeed taller and may be an advantage in that regard, however only way to know how good it is sonic test for bores and see how much "meat" is left in the walls.

Although not directly related to the L-series (applies to RB30's), this may give some idea as to which blocks are best.. (They look at RD28's) which is probably similar to the LD28 block (which is likely to be thicker due to being a Diesel motor and casting) but I've never tested.

 

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I always wondered if the issue was due to the stroke. An L28 block needs added clearance once you go to the LD28 crank. I think the LD28 has a larger clearance for the bigger stroke as well.

As for value, very few people will be interested in the LD block, rebello might buy it from you so give him a call. I just bought an LD crank in great shape for 1100 shipped. shipping was $100. I think this is a fair price for the crank based on the current market. 

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