B20 head on b18?

[ajn89]

Hey i have an ls with bent valves and i was wondering if a b20(p8r) head will fit on it, Considering that the port size is larger on the p8r head.

 

[phyregod]

I know a b18c head will fit on a b-20 block

And a B18c head will fit on a b18a/b block

So logic would indicate that a B20 head would fit on a B18a/b block.

Anyone with a confirmation?

 

[AHHVTEC]

it will fit

 

[serrilion]

Be kind of the reversal of what u would normaly see tho... B20 Block with b18 head lol

 

[theczechone]

If you use a b18 block with a b20 head, wouldn't this lower compression?
I know that if you use b16 head on a b18 you increase compression which gives more power, if you go the other way my guess is that you will loose power.

 

[benson1121]

ok, so i got a b18c1....na........kinda stock (just got the motor in) Intake header exhaust, kinda thinkin about JRSC, and hondata of course, but you say, if i get a b16 head, i get more power?.....eh? if you dont mind, could u explain a little?