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Question about 041X heads

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Old Apr 28, 2003 | 03:08 PM
  #1  
Gator_Z28's Avatar
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From: Seneca, SC
Car: '86 Z-28
Engine: 355
Transmission: T5
Question about 041X heads

Does anyone know the flow data on these heads? I've done tons of searches and I can find anything but
69-70 302 or 350
1.94/1.50 or 2.02/1.60 valves
64cc Combustion chambers
165cc Intake and 65cc Exhaust
I'm woundering because I know a guy that is selling his for $120 and I want to know if it is worth it. I have 882 heads on the car now.

Last edited by Gator_Z28; Apr 28, 2003 at 03:12 PM.
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Old Apr 28, 2003 | 03:37 PM
  #2  
RB83L69's Avatar
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
They are typical old double-hump heads. THey flow a ton better than 882s. IIRC they have the accessory bolt holes, so you can acutally install them in your car.

For $120, they're not a bad deal, if they're not in total need of everything. Things to look for include: set up for screw-in studs and guide plates, which should include accommodating 1.6 rockers; are they cut for bigger springs; are they set up for better valve guide seals; what valves are in them; what port work have they had; what hardware comes with them.

I would not particularly advise spending wads of money on them though; like any old stock casting, by the time you have them all worked up, you'll have almost as much money into them as a good set of new aftermarket heads that will considerably outperform them.

Whether they're a good deal for you depends on what you intend to do with them, as well as what's been done to them.
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Old Apr 28, 2003 | 05:14 PM
  #3  
Gator_Z28's Avatar
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From: Seneca, SC
Car: '86 Z-28
Engine: 355
Transmission: T5
I don't intend on doing much with them. I just want something that will flow better and raise my compression. RB83L69, you don't so happen to know if they well work with my Headman shorty headers?
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Old Apr 28, 2003 | 05:22 PM
  #4  
ME Leigh's Avatar
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From: Valley of the Sun
Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
Yes they should work with you headers.
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Old Apr 28, 2003 | 05:26 PM
  #5  
Gator_Z28's Avatar
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From: Seneca, SC
Car: '86 Z-28
Engine: 355
Transmission: T5
thats good! thanks
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