Rd28 Diesel Block?

[R_B_Boy]

Hi,

It stated on wikipedia that the Nissan RD28 Diesel engine is very similar to an rb block, but obviously diesel and single-cam. And that some ppl have used a custom head to convert to standard petrol.

Does anyone know if a RB Head will bolt on to a RD28 block?

If it does, then wouldn't it be a good option? aren't diesel blocks usually stronger?

Nissan RD28 Diesel

Bore: 85mm (guessing you would bore it out to 86mm if you have to)

Stroke: 83mm

Edited February 19, 2007 by R_B_Boy

[Guilt-Toy]

i have heard of this before.. how many litres are they?

[CEF11E]

RD28 = 2.8 litre the water galleries look the same as an RB20

seeming as the RB30 block is available for a few $$$ its prob a better option. unless the RD28 would bolt up to an RB20 head

[Beer Baron]

that is a massive stroke compared to an RB26 for instance. I wouldn't do it personally.

[R_B_Boy]

that is a massive stroke compared to an RB26 for instance. I wouldn't do it personally.

Isn't it better that a rb30?

RD28 - Stroke: 83.0 mm

RB26 - Stroke: 73.7 mm

RB30 - Stroke: 85.0 mm

[Guilt-Toy]

i heard that there was a 4 litre ish nissan diesel that may be able to adapt a twin cam head =)

dont know any details though

[Beer Baron]

Isn't it better that a rb30?

RD28 - Stroke: 83.0 mm

RB26 - Stroke: 73.7 mm

RB30 - Stroke: 85.0 mm

lol, personally I wouldn't want an 85mm stroke either. but you do have a point about it comparing favourably to a 30 crank and rods in that respect.

I have no idea if this thing is feasible for a performance application though, and also not sure how comon they are?

[Sydneykid]

Old news, very old news. Simply put there is ZERO advantage over an RB30 bottom end. No stronger, DET cylinder head doesn't bolt straight on, water and oil galleries are different, as is water pump and oil pump etc etc.

I see nothing wrong with an 85 mm stroke and 86 mm bore (as in RB30), that's a pretty "square" engine (bore = stroke). Same as a BMW 3 litre 6 (as in M3) or a Toyota 2JZ. Neither of which are exactly bad engines. And of course an SR20 is 86 x 86 as well.

cheers

[R31Nismoid]

Please search.

This has already been covered quite a while ago