B16A or B18C?

[justkoolman]

Which swap gives a better performance. A 1600 Civic Head on a CRV Block or an 1800 Integra Head on the CRV Block. I have a choice to make between the two of them soon and don't know which one to go for. So please help me out.

[crxlvr]

the b16a head flows more freely than the b18 does, so that would be my choice.

[jcrx]

But the GSR head has a higher compression due to the shape of the chambers

[crxlvr]

compression can be changed alot easier than the flow characteristcs of the head.

[jcrx]

Will considering the B16A head only flows better by a fraction of a percent, and only in a small segment of the rpm range (granted it is the most important segment), I'd rather spend a little for a slight port and polish than rebuild a block with new pistons, which would cost more. Of course he could run a thinner head gasket, and hope it holds under hard abuse for long enough to make it worth it, or he could do the worst and mill the head, but once you take it off, you can't put it back.

[Spectre927]

What's the cost of the heads? Im guessin you'll be able to get the B16 for cheaper

[jcrx]

Originally Posted by Spectre927

What's the cost of the heads? Im guessin you'll be able to get the B16 for cheaper

I've seen more cheaper B16A heads, but have seen my fair share of cheap GSR heads too. Depends on how much you look around, you can find both comparitively priced.

[emerge]

My vote is the B18...

[dealgrabber2002]

me too.. B18 is a bit better than B16

[boosted331]

Originally Posted by crxlvr

the b16a head flows more freely than the b18 does, so that would be my choice.

Alaniz had flow data up for a stock B16 head and a stock GSR head, the numbers were virtually identicle, within a few CFM's at any given point on the chart. That small difference can be attributed to casting inconsistencys, and you wouldn't notice that small of a difference anyways. Go with whatever head you can get cheaper.

[GScivic7]

how about both. B16A head does flow better than the B18. Also, B18C block + B16A head = poor man's Type R engine. Also, you can replace B16A head parts with B16B parts.

[projectsilvia97]

if you use the "search" button, you can find a million arguments on this topic.

[Spectre927]

Originally Posted by projectsilvia97

if you use the "search" button, you can find a million arguments on this topic.

Its kind of like arguing about whether God exists or not. You can't prove he does, but you can't prove he doesn't. Even with charts and dynos, people will still differ in their opinions.

[syk_pal_jgomez]

isnt the ls motor with like type r head a better combination than both of those

[Spectre927]

Originally Posted by syk_pal_jgomez

isnt the ls motor with like type r head a better combination than both of those

Theres almost no point in paying for a type r head when you can have a b16 p&p'd