MAX you'd pay for this bottom end (RB31DET)

[mr_rbman]

the big question is, was the bottom end built for a rb31DET, or an ET. if it was built for the latter the compression ratio will be too low

nah its built for an RB31DET not a turbo bottom end as such, as long as i get the right head gasket the compression should be around the 8.5:1 which is what i'm after!

the pistons are na pistons but they have also been ceramic coated too and seeing as i'm only after an absolute maximum of 300rwkw's i think i won't have anything to worry about with this bottom end, most of my money i intend on using for tuning!

[mr_rbman]

Pics have obviously been added, i now have the head, once its been inspected i will be bolting everything together, shouldn't be too much longer now!

[Angry]

nice pick up man .. gives me some scope on how much i should be lookin at getting my new project motor underway..

keeps up to date on the build man. .interested to see how u go..

Matt

[StockyMcStock]

bore number 4 has rust on it

and he painted over the nice brass welch plugs, as if you would!

[mr_rbman]

bore number 4 has rust on it

and he painted over the nice brass welch plugs, as if you would!

ye i know its starting to get rust, was perfect before i got it, its all covered up with heaps of sheets but the cold weather is hurting it, i don't have a shed to put it in so how can i prevent this? You won't see the engine once its in the car so it doesn't bother me them being painted!

[StockyMcStock]

carefully remove the surface rust with light grade sandpaper - try and mimic the finish of the honing already there. an oil stone would be best if you can get it, just take the very surface of it off.

then coat the bores with oil. lots of oil. engine assembly lube would be better, it's a bit thicker and won't fall off the surface as easily. put the sump on and tape over the top face to keep air out, it won't rust.

[mr_rbman]

cheers stocky, as always very helpful!