Thread: S13 SR20DET with '00 G20 SR20DE's lifters and roller rockers?

I have a highport (52F) S13 SR20DET and a donor low port (53J) SR20DE from a 2000 infiniti G20 that had ~40k miles. Im using the crank from the G20's DE in my rebuild. A few of my DET lifters were quite frozen at the top and took some force to free them up even after soaking in oil a few days, but now they open and close at least so idk if there may be some junk in them and if they're even ok to use again.

i looked at the donor DE's lifters and they appear to be very similar in size though they move a little easier than most of mine...then i noticed that 'nissan changed to a roller rocker arm setup after 1999' (in the low port design) according to wiki (which also says mixing and matching in the valvetrain doesn't necessarily work).

Im wondering if it's safe/possible to A) use the low port SR20DE lifters in my high port SR20DET (if B) is a "no") and B) can i use the roller rocker arms instead of the hydraulic rocker arms? The lifters and rocker arms look very similar and i thought cams are interchangeable so i guess there's a chance or does this have something to do with the VVT change?

1. the RR lifters are better than the any other SR lifters out there.

2. no, you can not use the RR rocker arms.

3. why did you swap out the 8cw crank for a 4cw crank?

4cw crank vs 8cw crank seems to be a tricky thing to work out best, but finding either crank anytime soon will be a bitch and I have a perfectly good 4cw crank ready now.

Hi actually you can use the RR lifters on the intake side, if you also swap the valves they will fit but you will have to gring the valve seat. (Roller Rocker Valve is 3mmm Shorter, same diameter. they are made from the same material.

on the exaust side not recomended DET has sodium valves (Best valves in my opinion) 7mm stem.

Don´t really know if you get any real gain.

Keo is right. The 2000-2002 RR lifters are the best out there. You don't need to swap valves. This is a modification Andres Miko recommeded years ago. These are even the HLA's that came stock in my W11 SR20 DET.

Here's a thread I posted a few years ago.

http://www.sr20-forum.com/general-sr20/53864-overkill-my-head-modifications.html