horsepower potential af kaase boss 9 heads?

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Re: horsepower potential af kaase boss 9 heads?

Post  nathan mann on January 8th 2011, 11:40 pm

Thanks for all the input guys,but I doubt I get to run the boss heads because the BBC guys are crying like little babies about these heads not being production based conventional heads. So what are some other conventional heads that have 1000 plus horsepower potential naturalty aspirated?

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Re: horsepower potential af kaase boss 9 heads?

Post  schmitty on January 9th 2011, 1:06 am

About the closest heads to that goal would be the P-51's. KY's engine was mid 900's and does quite well. Cool

Are the Mopar guys allowed to run the hemi heads? If so, then the BOSS heads should be allowed, because the improvements Kasse made were more in the valvetrain, not in the archetecture.
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Re: horsepower potential af kaase boss 9 heads?

Post  richter69 on January 9th 2011, 1:34 am

If the Hemi, A460 and C heads are off limits a full on P51 deal would be my choice IMO lol......but I'm biased...... Cool
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Re: horsepower potential af kaase boss 9 heads?

Post  Filucky on January 9th 2011, 1:34 pm

nathan mann wrote:Thanks for all the input guys,but I doubt I get to run the boss heads because the BBC guys are crying like little babies about these heads not being production based conventional heads. So what are some other conventional heads that have 1000 plus horsepower potential naturalty aspirated?

If you were to get some factory Boss heads i'd bet there are a few guys on here that could get them to support a 1000+hp. On the other hand i bet the same guys could get you that same 1000+hp with some P51's, either way it's going to cost a few bucks. Shocked
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Re: horsepower potential af kaase boss 9 heads?

Post  res0rli9 on January 9th 2011, 1:40 pm

Jon Kasse did a 600 with his Boss heads and got 1007hp and I think it was a pump gas deal.
there is video of it on you tube.
https://www.youtube.com/watch?v=c-kgD0ZPsIc

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Re: horsepower potential af kaase boss 9 heads?

Post  nathan mann on January 9th 2011, 9:34 pm

HAS ANYONE RAN THE ELIMINATOR HEADS? iF SO WHAT KIND OF POWER POTENTIAL DO THEY HAVE?

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Re: horsepower potential af kaase boss 9 heads?

Post  Barney on January 9th 2011, 10:50 pm

nathan mann wrote:HAS ANYONE RAN THE ELIMINATOR HEADS? iF SO WHAT KIND OF POWER POTENTIAL DO THEY HAVE?
Maybe Boss429 will chime in, but I do know of one of his Eliminator headed 530 inch motors making over 1k with a single carb. Its no 557, but it definitely gets the job done. I think the Eliminator heads have the power potential of the other A head offerings.
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Re: horsepower potential af kaase boss 9 heads?

Post  Barney on January 9th 2011, 10:55 pm

nathan mann wrote:Thanks for all the input guys,but I doubt I get to run the boss heads because the BBC guys are crying like little babies about these heads not being production based conventional heads. So what are some other conventional heads that have 1000 plus horsepower potential naturalty aspirated?
I thought the Kaase heads were based on production Boss 9 heads with improvements made to the rocker stands and compatability with production style blocks. Why would a sanctioning body think of them any different than any other aluminum performance replacement head. Cry as they may its no different than bolting on a set of Brodix BB3 heads on a Chebby. Crying or Very sad
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Re: horsepower potential af kaase boss 9 heads?

Post  c.evans on January 10th 2011, 10:41 am

Barney wrote:
nathan mann wrote:HAS ANYONE RAN THE ELIMINATOR HEADS? iF SO WHAT KIND OF POWER POTENTIAL DO THEY HAVE?
Maybe Boss429 will chime in, but I do know of one of his Eliminator headed 530 inch motors making over 1k with a single carb. Its no 557, but it definitely gets the job done. I think the Eliminator heads have the power potential of the other A head offerings.

Barney,

I'd like to see that dyno sheet posted. I mean the 530 inch engine with Eliminator heads making over 1k. Think you could have Boss429 do that?

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Re: horsepower potential af kaase boss 9 heads?

Post  Barney on January 10th 2011, 11:04 am

Ill talk to him and see what he can do.
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Re: horsepower potential af kaase boss 9 heads?

Post  BOSS 429 on January 11th 2011, 1:00 am

theres maybe a little confusion, not Eliminator

these are ex514 heads. yes 530ish ci making 1000hp , 1 CARB. but I have 2 of these engines here for guys that make that power not 1, I dont post peoples dynos sheets because they would not like that, yes they are the iron heads.

-Rich
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Re: horsepower potential af kaase boss 9 heads?

Post  AZFairlane on January 11th 2011, 11:32 pm

I'm not sure how relevant this is, and it's definitely out of my area of experience. I was talking to Cliff at Kaase's shop a couple of months ago and he told me they had the new Boss 9 heads flowing a max of 510cfm at that time. He was going to fax me a copy of the flow sheet but my fax wasn't working at the time, and since I'm not ready for anything that large, I didn't want to bother him again right now. I didn't ask for specifics such as valve sizes or cut angles.
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Re: horsepower potential af kaase boss 9 heads?

Post  Nevs on January 11th 2011, 11:34 pm

AZFairlane wrote:I'm not sure how relevant this is, and it's definitely out of my area of experience. I was talking to Cliff at Kaase's shop a couple of months ago and he told me they had the new Boss 9 heads flowing a max of 510cfm at that time. He was going to fax me a copy of the flow sheet but my fax wasn't working at the time, and since I'm not ready for anything that large, I didn't want to bother him again right now. I didn't ask for specifics such as valve sizes or cut angles.

That would be quite impressive if it is in fact true. I'd sure like to think it is.
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Re: horsepower potential af kaase boss 9 heads?

Post  Filucky on January 12th 2011, 9:48 am

510cfm, isn't that getting into A441 hemi territory? The best i've seen from the boss9's was around 450cfm if i remember right. If the boss9's can get up to 500+cfm that would be great, but it makes ya wonder if that isn't a special set that was done with no regard to cost or maybe something that he will setup a CNC program for? Either way 510cfm is pretty impressive! Very Happy
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Re: horsepower potential af kaase boss 9 heads?

Post  dfree383 on January 12th 2011, 10:50 am

Filucky wrote:510cfm, isn't that getting into A441 hemi territory? The best i've seen from the boss9's was around 450cfm if i remember right. If the boss9's can get up to 500+cfm that would be great, but it makes ya wonder if that isn't a special set that was done with no regard to cost or maybe something that he will setup a CNC program for? Either way 510cfm is pretty impressive! Very Happy

I'm thinking thats 500+ is with raised intake port plates and very large valves 2.45ish and 55 deg +/- valve job
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Re: horsepower potential af kaase boss 9 heads?

Post  Filucky on January 12th 2011, 4:52 pm

dfree383 wrote:
Filucky wrote:510cfm, isn't that getting into A441 hemi territory? The best i've seen from the boss9's was around 450cfm if i remember right. If the boss9's can get up to 500+cfm that would be great, but it makes ya wonder if that isn't a special set that was done with no regard to cost or maybe something that he will setup a CNC program for? Either way 510cfm is pretty impressive! Very Happy

I'm thinking thats 500+ is with raised intake port plates and very large valves 2.45ish and 55 deg +/- valve job

Even if thats the case it's still very impressive! Very Happy
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Re: horsepower potential af kaase boss 9 heads?

Post  jonkaase on January 12th 2011, 6:53 pm

We have built a few 598" engines with our Boss 9 heads & intake. A street compression (10.5), engine will make about 1000 HP, if it has enough cam. At least 273-280, .460 Lobe. 280-288, 112 CL is better. We have had a few with ported heads and a little more compression that made 1040 HP. We only did one that was more of a race engine. It had 12.5 compression, Jesel keyed lifters, 280-288, 112 cam, 1.85 intake rockers, and my Enginemasters heads from 2009. The heads had the intake manifold spaced up with a 1/2" spacer, and the intake ports moved up about 5/8", with the floors filled. It still used the stock size steel valves and an unported intake with an 1150 dominator. That engine made 1115HP and 890 FT/LBS.
So the answer is you can make 1000 HP fairly easy, and 1100+ if you upgrade in a few areas. .... Kaase

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Re: horsepower potential af kaase boss 9 heads?

Post  nathan mann on January 12th 2011, 7:48 pm

Thanks MR Kaase. for your input as well as everybody else.That is what I was wanting to hear.The only reason I was woundering to begin with is because when I build this motor I want to hurt some BBc guys feelings,because all they have done is cry about me wanting to run our local series with a boss headed motor. They keep saying that they are not worried about a BBF,yet they keep saying these heads are illegal and are not conventional heads. I just hope I can run the #'s I need to to be a player at 3200lbs.

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Re: horsepower potential af kaase boss 9 heads?

Post  richter69 on January 12th 2011, 7:50 pm

this looks like one of your Chevy buddy's lol http://www.429-460.com/t8537-conventional-or-not
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Re: horsepower potential af kaase boss 9 heads?

Post  BigBlockRanger on January 13th 2011, 1:32 am

The only problem with building an engine in the so-called gray area is: If you whoop ass this season with them, next season, the rule makers (read:Chevy guys) will ban hemi-style heads and you will be stuck with having to come up with another new engine combo.
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Re: horsepower potential af kaase boss 9 heads?

Post  dfree383 on January 13th 2011, 8:05 am

BigBlockRanger wrote:The only problem with building an engine in the so-called gray area is: If you whoop ass this season with them, next season, the rule makers (read:Chevy guys) will ban hemi-style heads and you will be stuck with having to come up with another new engine combo.

My point exactly in the other thread...... They hate to get beat by their own rules....
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Re: horsepower potential af kaase boss 9 heads?

Post  BOSS 429 on January 13th 2011, 10:28 am

but if the rules say any factory alum head

or


any factory head


noone could bit#$%

cov or cabover lol
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Re: horsepower potential af kaase boss 9 heads?

Post  CHARLIEB on August 7th 2012, 9:49 pm

Lem Evans wrote:
Here is what a 598" TFS A460 deal makes......get you some Smile


WOW Lem, I do like this post here what is the compression on this motor? what is the flow on these heads?
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