After browsing the world of wide webs, I’ve learned the following:
The JDM B20B P75 head has an 81mm dome and is the same as the B18B head.
The JDM B20B P8R head has an 84mm dome and flows more comparably to PR3 head.
The desirable head is naturally the P8R head.
In terms of cams, I’ve learned the following:
The P8R exhaust cams are the same as the P75 exhaust cams.
BUT, depending on who you talk to,
The P8R intake cams are better than P75 intake cams - or the complete polar opposite where the P75’s are better than the P8R! :argh:
Well which is it? I have a P8R head, and both sets of cams. I don’t have time to trial; I want to put one set in and leave them there.
Which cams should I put into the P8R and why?
Thanks!