Just curious as to what heads to use when building a nitrous motor. I know the forced induction guys like the 6.0L heads and AFR's... can I assume that nitrous use is the same?

Is there an advantage to having a thicker deck with nitrous use?? I would like my engine to have the capabilities to swallow a 300HP hit of nitrous and not even flinch.

Forced induction guys have some problems with higher boost levels and pushing water out of their heads because they are lifting them... is this also a problem with nitrous and higher horsepower levels?

I'm kinda just searching for opinions about nitrous and what heads to use...so lets hear it?

Thanks,
Jim

 

Stock

 

alot of the fi guys like the 6.0 heads because of the larger combustion chambers to lower compression.unless you're spraying a monster hit any of the heads will work good but usually ported ones pick up more.i think alot of the problems comes when people sprays too big and lifts heads.

 

im spraying the dart 205's and am very happy so far

 

ok...but how much is too big of a hit?? lol. I mean i'm sure there is a point that nitrous will start to lift the heads.... and i'm sure different heads will lift at different times. But is there a benefit to having the thicker deck heads for nitrous use?? will it help fight against lifting the heads, or does it not matter?

I'm just curious if i will want to spend the extra money on something with a thicker deck like an AFR..or should I save my money and go with something like a stock ported head.

Keep 'em coming guys.... I appreciate your opinions here.

 

the darts are thicker then stock and any head will lift if not fastend correctly if your going to be spaying that much nitrous use arp head studs. i spray a 200/250 shot without any lifting issues. i like the darts because they perform well and are reasonably priced.

 

I'm considering using the Darts as well. Glad to hear you like 'em. are your heads the "as cast" versions, or did you have them CNC'd?

 

they are the as cast version