632 Boss Nine

Says heads straight out of the box from Kaase.

http://www.enginelabs.com/news/video-638-cube-big-block-ford-hammers-1100hp-on-the-dyno/

Could of made more if he didn't have a baby carb on it

cool deal , i have just never seen "counterweight" on a cam before ..... interesting

res0rli9 wrote:Could of made more if he didn't have a baby carb on it

....and slightly smallish headers?

res0rli9 wrote:Could of made more if he didn't have a baby carb on it

Should have made ALOT more power period...

My 615 Ahead deal makes 1120....js

bruno wrote:cool deal , i have just never seen "counterweight" on a cam before ..... interesting

I have heard of grinding the cam to compensate for the cam twist, but don't see how adding more weight to it would help from it to twist.

This is very interesting. A few years back my dad was trying to figure out what his best avenue would be to go faster than what he was with his fms A 460 deal. He made a phone call to Kaase and had a long discussion (I'm not sure if it was Jon himself or someone else in the shop). Anyway, during the conversation my dad says he asked about the Kaase 9 heads and was told that they were not a good alternative for him because they were just not a "race" head. Regardless of their intended purpose, I would say if they are capable of over 1100 hp with that little carb and little exhaust, they are quite well suited on a race engine. Obviously there are more affordable options for a bracket racer, I just thought it was an interesting conversation looking back,considering what I've seen done with these head lately

QtrWarrior wrote:

res0rli9 wrote:Could of made more if he didn't have a baby carb on it

Should have made ALOT more power period...

My 615 Ahead deal makes 1120....js

^^^Opps, treed again by my slow typing.

I agree,  but with 632 cubes / 14-1 compression,  I would think the straight out of the box Boss Nine heads would be a restriction from the get go. Don't remember what the flow was out of the box for them, but it has been discussed on whether or not they would make a good "race" head, even if they were ported.

Yeah that is probably true. But I would say the A head is less than ideal on a 632 out of the box as well. The point probably is that the Boss heads require significantly more work and $ to do the same job as the wedge alternatives.

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JBR-3 wrote:I'm intrigued by the cam counterweight. I cannot see it being necessary for a couple of reasons.

Diversion........ don't look at my unique intake, worry about my "balanced" cam.

If it did anything, the prostock cams, the top alcohol cams, and the top fuel cams would all be counter balanced. Lord knows all of them eat a crap load of spring load, and do it at a hell of an RPM.. Prostock and top Alcohol espeacially

Kaase's 599 Boss that he took to engine masters... He said his Boss heads, capable of funneling in a monster 520 cfm of peak airflow.

That counterweight is useless. "Static balance" on a cam loaded while rotating by 16 spring loaded lifters is imaterial.

So what do the Boss9 heads flow out of the box ?