Guys i finished a solid B20B Block, no questions about it.

Now i need help of getting information's which is best Head to put on B20B block?

I read an article about the best's head swapping so far. The list below show's the order of the best head.

1. B16B
2. B18C5
3. B16A
4. B18C1

Is this true and correct? I need your opinions guys, as i have doubt, that B18C5 is better than B16B?

Hope someone would help. Thanks in advance guy's.

 

there is really no deference in heads except that the c1(GSR) intake manifold line up differently and the type r heads are hand ported and polished, hand assembled, and have more aggressive cam but other then that everything else is pretty much inter changeable, exp: cams, valve cover etc, but if your doing a head swap to a b20v build any head will do just fine.

 

Thanks for the inputs but i need more specific or detailed issues that would help to make a right choose of head.

I heard also that the angle of valve (valve guide) of B18C5 is different compare to B16B, same thing also the cylinder (size) is different?

edit: base on my thinking, i know there's something in there that makes the other head better than the other one,and it could make the motor much more stable and powerful.

 

They are called "camshafts".. other than that, you're REALLY over-thinking this. But I'll let you continue with your self-induced headache.

Its not that serious. Pick a head.. GO. BUILD. DRIVE. REPEAT.

 

B16, ITR, and B16B are all the same casting.. PR3 heads.

The ITR and CTR have a mild porting from the factory. (96-98 is hand ported, 99-01 is machine ported)

The B16 head will SLIGHTLY outflow the GSR head stock for stock.

The GSR head will give you about .2 more compression.

Either head will make a good motor, if you are serious about making power you be having the head port and polished anyway, so just get whatever head is the cheapest.

 

Was referring to this. Circled in red what do you call this one?The shape of B18C is bigger than B16B?



This one shows the Angle of Valve Seats.
Is there differences in B18C vs B16B?



Im just talking all about BARE HEAD,as im not worried about internals and pnp.

 

Not significant enough to name one head as "better" than the other.

 

I believe what they are referring to is the different angles between the P72 and PR3 head castings. IIRC, P72 is 60* and PR3 is 45*.

What you have circled are the combustion chambers. The P72 combustion chamber is shaped differently and has more of a quench pad than it's PR3 counterpart, which is why the P72 casting would have a higher compression ratio. The larger quench pad also helps resist detonation.

 

I have done this research as well and the truth is IF you are going to get headwork done save money and get the cheapest unharmed vtec head you can find. With the GSR head you need to make sure you get an IM specific to it but overall if you are building a head it doesn't matter.

 

GSR has quench pads which will prove beneficial to any setup. If you plan to butterfly cut the head then just go with a PR3 casting. Either head can be great with correct port work. You also didn't really state your build to even help you very much.

 

Between the b16a Chamber and the b18c1 gsr head there is a 1.1 cc difference between them which will yield you some compression. The angles you posted up are simply displaying the different angles on the valve seat. 30 top angle 45 seat angle and 60 in the throat "bottom angle. Depending on your actual goals with your build that will dictate what head to use. Between the regular b16a head and the type r head there are a few differences, the type r had a few upgrades that make it better when compared stock to stock,; cams, Springs, pocket port, a performance specific valve job,and intake valves with the under cut stems. But when it's all said and done they are both still pr3 castings so if you are going to have the head ported and upgrading valve train anyway start with a regular b16a head.