Thread: how to identify engin year?

i have a SR20DE long block and im trying to figure out what year it is so i can get the correct TPS for it. is there anything specific i should look for?

1: Highport or Lowport
2: Regular or RollerRocker

Highport is earlier models, lowport is later (someone can fill in the year gaps as my brain has shut off)

RollerRocker came in specific vehicles.

Methods to identify this stuff can be found by searching the forum.

top rad outlet has a date stamped onto it. given that it hasnt been changed thats pretty close to the date. oil filter mount also has similar stamp

i dont see that stamp on my usdm de.. but its on my VE.

post a pic someone will help...

Weird i have seen it on the n14 91+ motors and n15 95+ and my ve.


Dont have a picture but the alloy housing thats on the uppr LHS of the block that the top radiator hose goes to... right there the stamp is finger tip sized...

My block had a stamp "97" on it. I can't recall where exactly since it's been a while, but I do no for a fact that it couldn't have been far off, considering my car's a 98 and was actually assembled in late 1997.

Anyhow, post a picture and we'll tell you whether it's a lowport/highport/etc.

Here's a picture of the block that was pulled from my SE-R. The stamp was on the rear of the motor. I know that doesn't help you much...

Upper left hand portion on the starter "bracket"

ok well heres some pics of my motor.

its just a highport engine i have interchanged sensors on these between 91-98