R_B_Boy Posted February 19, 2007 Share Posted February 19, 2007 (edited) 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 Link to comment https://www.sau.com.au/forums/topic/156988-rd28-diesel-block/ Share on other sites More sharing options...
Guilt-Toy Posted February 19, 2007 Share Posted February 19, 2007 i have heard of this before.. how many litres are they? Link to comment https://www.sau.com.au/forums/topic/156988-rd28-diesel-block/#findComment-2915833 Share on other sites More sharing options...
CEF11E Posted February 19, 2007 Share Posted February 19, 2007 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 Link to comment https://www.sau.com.au/forums/topic/156988-rd28-diesel-block/#findComment-2915844 Share on other sites More sharing options...
Beer Baron Posted February 19, 2007 Share Posted February 19, 2007 that is a massive stroke compared to an RB26 for instance. I wouldn't do it personally. Link to comment https://www.sau.com.au/forums/topic/156988-rd28-diesel-block/#findComment-2915939 Share on other sites More sharing options...
R_B_Boy Posted February 19, 2007 Author Share Posted February 19, 2007 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 Link to comment https://www.sau.com.au/forums/topic/156988-rd28-diesel-block/#findComment-2916063 Share on other sites More sharing options...
Guilt-Toy Posted February 19, 2007 Share Posted February 19, 2007 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 Link to comment https://www.sau.com.au/forums/topic/156988-rd28-diesel-block/#findComment-2916224 Share on other sites More sharing options...
Beer Baron Posted February 19, 2007 Share Posted February 19, 2007 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? Link to comment https://www.sau.com.au/forums/topic/156988-rd28-diesel-block/#findComment-2916277 Share on other sites More sharing options...
Sydneykid Posted February 19, 2007 Share Posted February 19, 2007 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 Link to comment https://www.sau.com.au/forums/topic/156988-rd28-diesel-block/#findComment-2916702 Share on other sites More sharing options...
R31Nismoid Posted February 19, 2007 Share Posted February 19, 2007 Please search. This has already been covered quite a while ago Link to comment https://www.sau.com.au/forums/topic/156988-rd28-diesel-block/#findComment-2917921 Share on other sites More sharing options...
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