Thread: Low port exhaust cam to High port head?

I swapped heads from low to high port. And I already had the high port intake cam installed. But since swapping.. will the low port exhaust work on the high port head?

It will work

I know early lowports shared the same exhaust cam as the high ports, but I don't know about the 99.

In general all non RR and VE cams work in SR20DE(T) cars.

Edit: Sorry this was vauge. RR and VE cams are the only ones that are not interchangeable on the rest of the SR motors.

ve cams?... no!

Your cam swap will be fine Wayne . But a ve cam doesn't work in a se , det . or rr motor.

Yes, thats what I said. RR and VE cams don't work on the rest of the SR20's.

That's what I said, RR and VE cams don't work on the rest.

Thanx for the help guys. And I was aware of the rr and ve cams.

Actually RR cams WILL work in a non RR motor.

Scarier yet, I know of a roller rocker motor running Hydraulic JWT S3 cams "just fine" and seeing redline all the time

I have personally seen RR cams in a turbo lowport and highport head revving to 8k perfectly fine for 20k miles. Looked at the cams and rockers after the head lifted and there was absolutely no excess wear.

I have also seen in the same car a RR head with BC VE valve springs with a combination of BC stg 2 intake cam and stg 3 exhaust cam rev to 8k for 15k miles just fine. He over revved the motor above 9k at the track and threw the rollers in a few spots, but of course that would happen with any lowport/highport with stock valvetrain.