newb rb20det question

[1988montecarloss]

in most pictures i see of rb20det swaps the engines have gold or silver tops. there is a 240 for sale locally that has a red top.

is it just painted or are there two different engines?

and is one better than the other?

(yes i tried to use the search function but it didnt even work)

thanks for the help

[OutToWinPAHC]

People paint the timing and valve covers often. I am no RB expert at all other then just being a RB25/26 swap fan, but I know there are different RB series.

[1988montecarloss]

and what would it take to swap to an rb25/26 down the road?

[OutToWinPAHC]

Some searching... lol.

I dont know to be honest, mount kits are available, and there are vendors who will do the harness work if your not comfortable doing it. Its a common swap so all the parts are available.

Try our RB section for more info, I wish I could help, but I have only tinkered with v8 swaps, ka's, and a few SRs which are easy as pie.

[1988montecarloss]

Some searching... lol.

I dont know to be honest, mount kits are available, and there are vendors who will do the harness work if your not comfortable doing it. Its a common swap so all the parts are available.

would i need new mounts to go from rb20 to rb25/26? or can they all mount in the same place like all LS motors do?

i shouldve been more specific

[OutToWinPAHC]

ls do not use stock mount, either do rb. Mckinney motorsports make mounts for RB and alot of guys use them. So search them out

[1988montecarloss]

ls do not use stock mount, either do rb.

i know that. im just saying if you had an ls1 and wanted to upgrade to an ls2/ls6 it would bolt up using the same mounts as the ls1

are the rb motors the same way?

[kc240guy]

just take the motor out of your monte and put it in there.

[1988montecarloss]

just take the motor out of your monte and put it in there.

i could sell it and pay for an entire swap with an iron block 5.3

it would make roughly the same power, weigh the same (probably less) and everything would be paid for.......i dont wanna go that route though.

i actually dont even have a 240sx. im just looking at a few because ive wanted one for a looooong time and i want to get some info on them before i decide which one i want.

[Gabes13]

i dont even have a 240sx.

[1988montecarloss]

i plan on owning one soon. im asking questions so i know which one to buy

im pretty sure im not the only one on the forum without a 240sx

[nissans13240sx]

Rb20/25/26 use same mounts whether mckinny wants to admit it or not. There are differnt series of both rb20 and rb25 motors. Red valve covers are most likely painted but I believe the rb20 that came in the old z31s had red valve covers. If you want to upgrade to rb25/26 in the future, you will need to bang out the firewall for the rb25 trans. If you get a rb26 you will need a rb25 trans.

[leesredgt]

Rb20/25/26 use same mounts whether mckinny wants to admit it or not. There are differnt series of both rb20 and rb25 motors. Red valve covers are most likely painted but I believe the rb20 that came in the old z31s had red valve covers. If you want to upgrade to rb25/26 in the future, you will need to bang out the firewall for the rb25 trans. If you get a rb26 you will need a rb25 trans.

This.

[hbpignosePA]

rb20 in a z31?

where

[troskinatior]

rb20 in a z31?

where

J-land Duhh. I think they were pretty rare in japan, but I forgot, I'm not up on my z31 info like I used to.I wish they had them in america.

[hbpignosePA]

i didnt think the z ever got them

[nissans13240sx]

i didnt think the z ever got them

Yes sir, it was the z31 "200zr".

[1988montecarloss]

Rb20/25/26 use same mounts whether mckinny wants to admit it or not. There are differnt series of both rb20 and rb25 motors. Red valve covers are most likely painted but I believe the rb20 that came in the old z31s had red valve covers. If you want to upgrade to rb25/26 in the future, you will need to bang out the firewall for the rb25 trans. If you get a rb26 you will need a rb25 trans.

is there a difference between the two different ones other than the valve cover color?

or are all rb20det's mechanically the same?

EDIT: i found that the silver top motors had a better cyl head but i can still only find one factory power rating for the rb20det (215 PS)

[SxMachine]

rb20 in a z31?

where

Fairlady, k.

[nissanman04]

Redtops came in R31 skylines as well...

[SuicidnS13]

Redtop rb20 is a vvveeeerryy old rb20 usually...

[nissans13240sx]

is there a difference between the two different ones other than the valve cover color?

or are all rb20det's mechanically the same?

EDIT: i found that the silver top motors had a better cyl head but i can still only find one factory power rating for the rb20det (215 PS)

I dont know what the differnces from the old rb20s(z31, r31) are, but I really doubt you would get either one of those motors. You will most likely get a rb20 out of a ceferio or r32. Most vendors probably only sell and recieve motors from those cars. I dont think the older rb20s were very common. I believe older rb20s have "rb20" stamped on the timing cover newer motors are blank on the timing cover. I honestly wouldnt worry about it to much.

[xX RB Xx]

Yes the RB20 came in Z31. It was called the 200zr a.k.a The Soul Synchro Machine. It came with A top mount intercooler along with red valve covers that looked like this.



I doubt this guy has an z31 rb20. It has a lesser power rating that the r32 silver top rb20.