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06 Trailblazer SS
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167 Posts
Discussion Starter · #1 · (Edited)
AFR 205 Heads $1800 shipped. (Paypal accepted no fees)
64cc
AFR 8019 Springs
Low Miles on these.


You can see in the pics I did a quick cleanup on one head.

Price is firm on these free shipping and no paypal fees.







 

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06 Trailblazer SS
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Discussion Starter · #3 ·
I never installed them.
There are a few members running these.
Maybe they will chime in with some HP numbers.
 

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Discussion Starter · #5 · (Edited)
AFR 8019 Springs
good for .650 lift
 

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Trailblazer SS AWD
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Good deal. Tempting, wish i had a built trans
 

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Discussion Starter · #8 ·
Do you need a cam to run these?
Technically no you don't need to upgrade your cam to run these but to reach the full potential of these heads you would definitely want to upgrade the cam.

Good deal. Tempting, wish i had a built trans
There are several people making good hp running a stock transmission.
 

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TrailblazerSS
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Great set of heads im using them on my 402. Bump
 

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Discussion Starter · #13 ·
Had a little confusion on what springs are on these.
The owner thought they were Comp 921 springs.
I emailed AFR with the serial number.
I was told they were ordered with the upgrade AFR 8019 springs good for .650 lift.
They are milled from 66cc to 64cc.


Nice set of heads.

Already milled to 64cc for stock compression.

Boxed up and ready for a new home....
 

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Discussion Starter · #14 ·
Last chance.
Heading to eBay this weekend.
 

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Discussion Starter · #16 ·
AFR would be the next level over stock ported.
I think I've seen posts saying 25-40 hp over stock ported.
 
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