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you won't be getting a new rb20 for that price .

you will be getting a second hand most probably clapped out one for that price

better to spend the money doing up your head then save more and build bottom end

Sorry my bad i didnt xplain,i ment a new rb20 as in a replacement 1 out of a mates 32 coupe.It was written off (rear end smash) and is sitting in his yard as he was uninsured at the time of accident and he is just selling parts off as it sits.1k for the engine 172xxx ks on it,and i have been quoted from $800 - 1k tops for the install.I was thinking of just building mine up (as i 1st wanted to do) but thought that once the valve stem seals start 'going' it doesnt take long for the smoke to go from not bad as it is now (only faint smokes after initial warm up then goes after 10 15 mins) to a undriveabvle aka embaracement ;) 'smoke city' so just wanted to drop replacement in and get back to the norm... ?,out of interest how much would i be roughly looking at to do a good reliable 20 build as i also am looking at a turbo upgrade soon for around 400-430whp..

Personally, I wouldn't bother wasting money building an RB20 up because at the end of the day it's still going to be an RB20 with a shit flowing head (they flow about as much as an RB30E head). Either drop a stock RB25 in there (way better base to start with than an RB20) or build a real engine :)

  • 2 weeks later...
Personally, I wouldn't bother wasting money building an RB20 up because at the end of the day it's still going to be an RB20 with a shit flowing head (they flow about as much as an RB30E head). Either drop a stock RB25 in there (way better base to start with than an RB20) or build a real engine :blink:

Yeh i did think of a RB30 :) but Nah,and the 25det is too original mate and same as the rb30 tooo costly..i like the rb20 and while there is alot of ppl giving it shit bowt the lack of torque and flow and saying its a shit engine id rather stick with it (worse case scenario is a replacement 20 at only half the cost of a 25,if that).All engines and RBs for that fact have their problems,but i have heard alot more problems with the 25dets then the 20dets.After thinking what i should do im just going ahead and fixing the valve stem seals and whilst doing that im dropin in a nice new thick head gasket and giving it a thorough clean and in a few months dumping in a td06 with gate.I was gona do something difrent an do a rb 22 or 24 job but after doin all the math its just not a financially smart thing to do,plus ive heard of rb20s with no internal workings cracking 250-270rwkw+ mark on just a good turbo,manifold and gate setup..at the end of the day i dont want a track or street monster just a reliable daily that can punchout its weight when needed :P

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