Whats makes Cali. 289 heads different?

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65shlbycln

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Aug 24, 2002

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Atlanta

Mar 4, 2004

#1

• Mar 4, 2004

• #1

The shop thats working on my car told me that i have 289 heads that were manufactured in california. I guess he thought that that made them special or something. The only thing i know about cali cars being different is smog equipment. With cali heads, is the compression ratio different or something? Or is this guy just a wacko?

 

12sec67

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Oct 6, 2003

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San Diego, Ca

Mar 4, 2004

#2

• Mar 4, 2004

• #2

think he is wacko!

 

D

D.Hearne

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Sep 29, 2000

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south louisiana

Mar 4, 2004

#3

• Mar 4, 2004

• #3

The only difference the California heads had was as you thought, the smog passages. They were not made in California. They're only worth more to someone who's restoring a California smog equipped car. Otherwise, they're boat anchors.

 

6

65shlbycln

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#4

• Mar 4, 2004

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gracias amigos!

 

LMan

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Mom's basement

Mar 4, 2004

#5

• Mar 4, 2004

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Cali heads have air-injection passages into each cyl to burn leftover fumes and so on. I have a set, they are wonderful at holding my barn doors open

 

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65shlbycln

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Mar 5, 2004

#6

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LMan said:

Cali heads have air-injection passages into each cyl to burn leftover fumes and so on. I have a set, they are wonderful at holding my barn doors open

Click to expand...

Even with the passages, they still perform as well as regular 289 heads right?

 

65fastback2+2

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Aug 4, 2003

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Louisville, KY

Mar 5, 2004

#7

• Mar 5, 2004

• #7

i think they both hold barn doors open the same....

 

M

mp67

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Mar 5, 2004

#8

• Mar 5, 2004

• #8

65fastback2+2 said:

i think they both hold barn doors open the same....

Click to expand...

I was cracking up on that one.

 

D

D.Hearne

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south louisiana

Mar 5, 2004

#9

• Mar 5, 2004

• #9

They also each exert the same force needed to anchor your favorite boat But seriously, although I haven't examined a set, I would assume that they would also have the same or similar, EGR "bump" in the exhaust port that the 5.0 heads have, that restrict the flow. A little work with a die grinder would fix that.

 

L

Lswhat

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Feb 9, 2004

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Orlando

Mar 5, 2004

#10

• Mar 5, 2004

• #10

can they hold doors shut i have a shed door thats wont stay shut and i just happen to have 3 sets of crappy 289 heads along with 5 sets of crappy 302 heads any help would be nice.

 

LMan

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#11

• Mar 5, 2004

• #11

actually, you will know they are true Cali heads if they have a small metal tube beside each spark plug hole. It is a restriction - I think they are worse than non-air-injection heads of the same vintage.

But they are every bit the equal in holding barn doors!