B18c2 with 1.6L twin cam head vtec

[BlitZ]

1.8 r and 1.6 ek4 use the same head casting. money beter spent improving the b16a head

from what i have read
Ｔｈｅ b18c2 vtir heads have a better downdraft and it more ideal for higher comp. I doubt u feeel anything at stock or semi stock levels.
use the b20 head and you would have a crv haha

[MRB18C]

hey also would anyone know the difference in the b16a and the ba18c2 head. by looking at them both what is difference?. i have herd that they both look the same only difference is that the b16a head is closed chamber? is there anything else to keep an eye out for? thanks

[OB]

hey also would anyone know the difference in the b16a and the ba18c2 head. by looking at them both what is difference?. i have herd that they both look the same only difference is that the b16a head is closed chamber? is there anything else to keep an eye out for? thanks

one has pr3 marked on it, the other p72, above the exhaust ports..

[yourfather]

one has pr3 marked on it, the other p72, above the exhaust ports..

lolol

[EG5]

Also different intake manifold design between pr3 head and p72 head

[MRB18C]

beautiful. thanx guys

[fishman]

For maxium power out of your car i suggest you put on a v6 head out of the new commodores. It has alloytech and will give you heaps of torque from the compacity increase.

[ZeForce]

hey also would anyone know the difference in the b16a and the ba18c2 head. by looking at them both what is difference?. i have herd that they both look the same only difference is that the b16a head is closed chamber? is there anything else to keep an eye out for? thanks

The combustion chamber designs are probably the most noticable difference between the two heads. The P72 (B18c) head has much larger quench pads so the chamber isnt a full circle compared to the PR3 (B16a)

PR3 (B16a/ITR):


P72 (B18c):

[yourfather]

hmm looks pretty cool.

[eg92b16a]

So is it better to have a round chamber or an oval one??

[ZeForce]

So is it better to have a round chamber or an oval one??

The larger quench area on the P72 chamber prevents detonation and increases combustion efficiency, the smaller chamber also gives a higher compression ratio

[MRB18C]

so the pr3 head should have more comp then the p72?