Civic-EG.com Forum 3.3.1

- Sat Oct 09, 2010 7:37 am #217658

yeah it was a complete head for 250. is that bad?

If that's the remanufactured one I was looking at ... I'd say it's a good price. Complete, rebuilt, rare head ... that's about what I was probably going to spend on it when I was going to build one 5 or 6 years ago.


Looks like you are looking at the p75 head the only p8r on ebay right now is this one.

And it's currently ~$400 shipped ... which is still good I think.

Straight lines are for sissies.

- Sun Oct 10, 2010 7:34 pm #217758 I paid a lot less than that and mine looked brand new. Pretty much perfect.

I think about $100ish.

1986 Nissan 300zx
1980 Kawasaki KZ650
2014 Kawasaki Ninja 300

- Mon Oct 11, 2010 12:31 am #217791

I paid a lot less than that and mine looked brand new. Pretty much perfect.

I think about $100ish.

For a p8r ... where'd you find yours?

Straight lines are for sissies.

- Mon Oct 11, 2010 2:19 am #217805 wow that would be a god send if i could find one for that price

- Mon Oct 11, 2010 4:22 am #217827 I got mine from a local forum. I had my choice between two heads. This one was cheaper and looked better.

1986 Nissan 300zx
1980 Kawasaki KZ650
2014 Kawasaki Ninja 300

- Mon Oct 11, 2010 6:09 am #217838

I got mine from a local forum. I had my choice between two heads. This one was cheaper and looked better.

Wow nice score on that one. Dammit I may have to go darkside ... or just get another car to stick a b20 non vtec build in.

Straight lines are for sissies.

- Tue Oct 12, 2010 3:51 am #218005 good news i found me a clean looking head for a hundred also

- Tue Oct 12, 2010 4:01 am #218011 snatch it up.

1986 Nissan 300zx
1980 Kawasaki KZ650
2014 Kawasaki Ninja 300

- Tue Oct 12, 2010 4:35 am #218015

good news i found me a clean looking head for a hundred also

Make sure it's a p8r and not a p75.

Straight lines are for sissies.

- Tue Oct 12, 2010 7:59 am #218036 will do! also in the works of getting my crower cams soon

- Tue Oct 12, 2010 8:57 am #218038

will do! also in the works of getting my crower cams soon

Which one's are you going with? I'm excited to see the results of this build.

Straight lines are for sissies.

- Tue Oct 12, 2010 9:31 am #218040 i havent yet decided between 403 or 404s probably whichever i can find cheaper. also ive decided on a blox intake manifold 310 cc injectors and ive decided to leave my pistons as they are. they are probe pistons something like 11.1 cr. the owner before me paid a pretty penny for them and i didnt see any sense in swapping them out. they are practically new

- Tue Oct 12, 2010 9:46 am #218041

i havent yet decided between 403 or 404s probably whichever i can find cheaper. also ive decided on a blox intake manifold 310 cc injectors and ive decided to leave my pistons as they are. they are probe pistons something like 11.1 cr. the owner before me paid a pretty penny for them and i didnt see any sense in swapping them out. they are practically new

Keep in mind that slapping the p8r head on is going to drop your CR a little bit (~0.2), the combustion chamber is 47cc as opposed to 45cc on the p75. You could shave the head a smidge to make up for that if you wanted to. You may want to go with the 403s just for that reason because those 404s looooove compression. You probably wouldn't be using them to their full potential.

Straight lines are for sissies.

- Tue Oct 12, 2010 9:53 am #218042 okay sweet 403s so how much do you think i should shave?

- Tue Oct 12, 2010 6:32 pm #218083 you should actually get the 404s. Much better cam. You can through the 404s on a Stock B20z with the 9.6 CR and be just fine. Ive seen someone put them in a B20b block with a p8r head and still make 140whp. Thats only like 8.5:1.

1986 Nissan 300zx
1980 Kawasaki KZ650
2014 Kawasaki Ninja 300