Tm Ent. VS Kaase Boss 9 Heads

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Tm Ent. VS Kaase Boss 9 Heads

Post  billandlori on March 28th 2010, 8:23 pm

I was just reading the PHR write up on the TM Enterprises Boss build. Very cool build!! Cool

How do these compare to the Boss 9 heads? Are they much the same or is one more of a stock replacement? It sounds like the TM's are more stock type while the Boss 9 heads are of a newer design.

Gonna be a long time before I can afford them anyway, just wondering/dreaming!!!

Bill
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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  res0rli9 on March 28th 2010, 8:30 pm

Kaase has fixed all the problems that the old heads had plus they will fit on all the blocks ( 429-460 )

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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  rmcomprandy on March 28th 2010, 8:56 pm

res0rli9 wrote:Kaase has fixed all the problems that the old heads had plus they will fit on all the blocks ( 429-460 )

BOTH have addressed the bad casting problems of the originals.

The TM head is probably closer to being an original replacement although the valve size is larger than original however, they use the original valve train / rocker arm, top end oiling and drain-back arrangment.
Which one is BETTER is totally a personal decision.

BOTH use head gaskets instead of the original "O" rings.

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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  BOSS 429 on March 28th 2010, 11:25 pm

rmcomprandy wrote:
res0rli9 wrote:Kaase has fixed all the problems that the old heads had plus they will fit on all the blocks ( 429-460 )

BOTH have addressed the bad casting problems of the originals.

The TM head is probably closer to being an original replacement although the valve size is larger than original however, they use the original valve train / rocker arm, top end oiling and drain-back arrangment.
Which one is BETTER is totally a personal decision.

BOTH use head gaskets instead of the original "O" rings.

----------------------------------------------------------------------


the above is true, jk extended the ehx rocker so you dont have to clearance the deck for pushrod,like the stock blocks had,he also has the first style which the stands are cast into heads, the tm heads is same as stock with added alum,and deck,so is jtk's head, both are nice,neither need the o rings of yesteryear. tm has 2 styles,jk has one only?,both use stock intake,or valve covers,ive been botting oem boss 429 heads on stock,no boss blocks since 1985 or so,this has been a long time comming

both will,and can make good power,

-rich
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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  Diggindeeper on March 28th 2010, 11:37 pm

Would Time of Delivery be the biggest difference between the heads? or is the wait significant on both?
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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  billandlori on March 29th 2010, 2:24 am

Thanks Randy and Rich!

Being able to bolt them onto regular production blocks sure makes it much more do-able for most folks.

It is great to see these legendary heads live on!!

Bill
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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  the Coug on March 29th 2010, 6:10 am

what size Valves are in the heads now the Factory came with 2.28 intakes... on a 3/8 stem.....


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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  dfree383 on March 29th 2010, 6:53 am

The Kaase Heads take a BBC +.100 Valve with the 11/32 stems. 2.30 Intake 1.88 exhaust are std.

Last I saw the second version of the TM head looks like a copy of the Kaase head in the combustion chamber.

As far as HP potential I'd believe they are both Equal out of the box, providing you get equal valve sizing.


Last edited by dfree383 on March 29th 2010, 11:09 am; edited 1 time in total (Reason for editing : Mistake on Stem size oops !!!)
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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  the Coug on March 29th 2010, 10:58 am

I would love to have a set but I have a set of the Originals on the shelf along with the other components to put it all together so I guess I will have to run original stuff..... Sad


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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  rmcomprandy on March 29th 2010, 11:21 am

the Coug wrote:what size Valves are in the heads now the Factory came with 2.28 intakes... on a 3/8 stem.....

Randy

The alternate design "high performance" TM head has 2.400" intake valves with 11/32" stems.
I think the "original replacement" TM head has 2.300" intake valves, (might be 2.350"), with 11/32" stems but, their website should tell you for sure.

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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  the Coug on March 29th 2010, 12:28 pm

I have a set of 2.40 intakes and 2 inch exhaust for mine 11/32 stems cut to fit.....

But for the right price I may be willing to let my factories go..... along with many of the other parts for it......



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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  BOSS 429 on March 30th 2010, 12:00 am

the Coug wrote:I would love to have a set but I have a set of the Originals on the shelf along with the other components to put it all together so I guess I will have to run original stuff..... Sad


Randy

nothing wrong with the org stuff, i used it for years, or you could sell your stuff,and buy the others
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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  BOSS 429 on April 28th 2010, 11:18 pm

i just receved more boss 429 parts, (TM)

love these heads, great to work with. i dont think they be here long


-rich
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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  billandlori on April 28th 2010, 11:22 pm

BOSS 429 wrote:i just receved more boss 429 parts,

love these heads, great to work with. i dont think they be here long


-rich

Sounds like fun!! It would be nice to get "more boss parts"!!! Cool It would be nice to have "any" boss parts!!!

You WILL be posting pics right???? Laughing Laughing

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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  BOSS 429 on April 29th 2010, 9:02 pm

this thing locs up when i try
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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  BOSS 429 on April 29th 2010, 9:05 pm

Diggindeeper wrote:Would Time of Delivery be the biggest difference between the heads? or is the wait significant on both?


if your check is good i can get them in about 2 weeks or so




-rich
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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  BOSS 429 on April 29th 2010, 9:31 pm

people have been asking me which head is better? best?

neither,both are great, J K'S way is to try and make it easier to bolt on,not clearancing the top of block, thats not a big deal, and i bet some will still have to a little, stock rockers fit tm head,can convert to jessel,t and d. and soon there will be another rocker avb.

both made deck thicker, better alum, better where the ehx stand /head bolt aera are,thats where one of my oem boss 429 heads broke years ago, too much lift? no, valve spring presser is the killer. with these heads thats not a problem for people who will be doing a race engine.


-Rich

I sell the T M heads



wh
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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  BOSS 429 on April 29th 2010, 9:35 pm

one more thing, which ever head you buy i suggest doing the return oil line from back of each head to pan




-rich
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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  Diggindeeper on April 29th 2010, 9:52 pm

BOSS 429 wrote:
Diggindeeper wrote:Would Time of Delivery be the biggest difference between the heads? or is the wait significant on both?


if your check is good i can get them in about 2 weeks or so




-rich

thats a good turn around. the check would be good but the wife would kill me Laughing

who needs siding, and gutters confused
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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  Diggindeeper on April 29th 2010, 9:57 pm

what percent more for a long block w/the TM heads than say long block w/ a set of A heads roughly
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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  rmcomprandy on April 30th 2010, 10:48 am

Diggindeeper wrote:what percent more for a long block w/the TM heads than say long block w/ a set of A heads roughly

It's not like the stuff is unavailable ... it's all available so, if you're going to nit-pik about the time frame then you should pick a different avocation.

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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  chuck stevens on April 30th 2010, 12:41 pm

IMHO, usually...by the time a racer gets to their second or third season...they've learned that to be ready for the next season, they order any custom or non shelf parts as soon as the current season ends. Cool

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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  BOSS 429 on April 30th 2010, 2:05 pm

Diggindeeper wrote:what percent more for a long block w/the TM heads than say long block w/ a set of A heads roughly


if your using good parts for the a, like shaft rockers,etc, then not a lot of diff,

call me,i could give you a quote on a done engine




-rich
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Re: Tm Ent. VS Kaase Boss 9 Heads

Post  Diggindeeper on April 30th 2010, 5:27 pm

thanks. close enough guesstimate for me.
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Tunnel Ram

Post  747JetMech on May 11th 2010, 12:23 pm

Will Johns new tunnel ram look anything like the AR unit?


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