#1  
Old 05-13-2022, 05:31 PM
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67'7F6'Bird 67'7F6'Bird is offline
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Default 6X-8 Ported heads forsale

I have a set of 6X-8 Heads forsale.
These were ported and assembled by Racing Head Service.
On a 455 I ran 12.5's @ 110 MPH in 3650lb Firebird with 3.42 gears. Street Car.
They are dual springs setup for a 292 advertised duration .507 lift hydraulic cam. They need disassembly, cleaning and reassembley. Less than 5,000 miles.
Just been sitting awhile.

Location: Atkinson NH 03811

$750.00
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  #2  
Old 05-13-2022, 05:32 PM
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Location: Atkinson NH 03811
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  #3  
Old 05-14-2022, 07:20 AM
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grivera grivera is offline
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Do you have flow sheets from RHS?

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'69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears
'64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears
'69 LeMans Vert, 350, #47 heads: Non-running project
  #4  
Old 05-14-2022, 08:18 AM
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67'7F6'Bird 67'7F6'Bird is offline
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Quote:
Originally Posted by grivera View Post
Do you have flow sheets from RHS?
I do not.

The porting is mild. Not an all out race head, a good head for a street motor.

  #5  
Old 05-15-2022, 12:21 AM
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Could be a really good head for a turbo engine for someone very similar to what I Run w a T88 and run nines off the foot brake . Is that glyptol? Had that stuff come loose on a 455 w aftermarket capes etc. it’s still sitting in my basement 15 years later. Can go forever or flake like crazy.
Couldn’t tell on my phone if that’s what I’m seeing or not?

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Happiness is just a turbocharger away!
960 HP @ 11 psi, 9.70 at 146.
Iron heads, iron stock 2 bolt block , stock crank, 9 years haven't even changed a spark plug!
selling turbos and turbo related parts since 2005!
  #6  
Old 05-15-2022, 11:27 AM
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Quote:
Originally Posted by 67'7F6'Bird View Post
I do not.

The porting is mild. Not an all out race head, a good head for a street motor.
Thanks - Measured chambers? How many CCs?

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Will Rivera

'69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears
'64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears
'69 LeMans Vert, 350, #47 heads: Non-running project
  #7  
Old 05-15-2022, 09:15 PM
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67'7F6'Bird 67'7F6'Bird is offline
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Quote:
Originally Posted by grivera View Post
Thanks - Measured chambers? How many CCs?
Stock is 98 CC.

The heads origanlly were only resurfaced.

Steve

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