MOUNTAIN SERIES BILLET HEAD

[Speed Shop Inc.]

If your looking for some easy power, our billet heads work great! The mountain series have a 14:1 ratio dome that allows you to still run premium pump gas above 4500 feet altitude.

The horsepower gains do come from more compression, but also for the different squishband angle with width. We also changed the angle of the spark plugs slightly.

Order one online and use code SW090915 and get $40 off!
Or just give us a call and we will offer you the discount too.

http://www.bd-xtreme.com/index.php?id_product=227&controller=product


(this discount won't show up automatically online, it is manually adjusted on our end when processing the order)

 

[Icedog]

Just wondering about the trail in/out with a head designed to run pump gas at 4500'? The areas we ride are only about ~2500' at the parking lots and some are 20kms of trail before we hit 4500'. Would these areas require more octane to safely get in and out on the trail at the lower elevation?

 

[Speed Shop Inc.]

domes

Just wondering about the trail in/out with a head designed to run pump gas at 4500'? The areas we ride are only about ~2500' at the parking lots and some are 20kms of trail before we hit 4500'. Would these areas require more octane to safely get in and out on the trail at the lower elevation?

Yes, you would need to mix some race gas in with it. Not a lot, but some. So you ended up with about 95-98 octane.

We also have a set of domes for the lower elevations for premium gas.

 

[hansenmac]

tuning

would you need a fuel controller with the heads

 

[Speed Shop Inc.]

would you need a fuel controller with the heads

No, just run premium pump fuel.

You can add about 10hp to the motor with no fuel controller