Head gasket replacement
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From: Elm City, NC
Car: 87 IROC Z
Engine: 5.7
Transmission: 700R4
Axle/Gears: 3.27
Head gasket replacement
I've found a lot of posts regarding head gaskets but not quite the info I'm looking for. I've only had my engine apart down to the intake manifold so this will be my first attempt at removing the heads. I'm losing coolant and getting white smoke from the exhaust. Not a lot, but enough to indicate a possible head gasket issue. My questions are:
1. Can the heads be removed and replaced intact or is there some disassembly/reassembly required? My heads are aluminum Trick Flow.
2. Do I use any type of sealer on the gasket or do they go on dry?
3. Does anyone have a picture of the torque pattern? Inside out/outside in?
Thanks,
Steve
1. Can the heads be removed and replaced intact or is there some disassembly/reassembly required? My heads are aluminum Trick Flow.
2. Do I use any type of sealer on the gasket or do they go on dry?
3. Does anyone have a picture of the torque pattern? Inside out/outside in?
Thanks,
Steve
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Joined: Mar 2008
Posts: 181
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From: Westminster, Maryland
Car: 1987 IROC-Z
Engine: 383ci SBC
Transmission: 700r4
Re: Head gasket replacement
Goes on dry. Get both the heads and the block super clean (carb cleaner and a rag after scraping off all the old gasket and gunk with a razer blade) before putting them on.
That being said, I'm sure someone here who has one can look it up (I don't yet
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From: morrow, ga
Car: 82 S10, 83 280ZX, 84 Z28
Engine: 355 smallblocks..na, 2.8 turbo
Transmission: 85:th350, 84:700R4
Axle/Gears: 85:ford9 4.85, 84:stock 3.24
Re: Head gasket replacement
I'm just curious. Does anyone own a service manual anymore?
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Car: 1991 Trans Am GTA
Engine: 350 carbed
Transmission: T5
Axle/Gears: 7.5 10 bolt 4.10
Re: Head gasket replacement
Obviously you have to remove the intake, but you should also remove the pushrods before removing the head. Loosening the rockers enough to rotate them slightly will let you pull the pushrods out. I'm not sure how much it matters, but I was always told to keep them in the right order, so they get put back exactly how they were taken out.
Goes on dry. Get both the heads and the block super clean (carb cleaner and a rag after scraping off all the old gasket and gunk with a razer blade) before putting them on.
Buy yourself a haynes and chilton manual. That'll cover pretty much everything about your car, and the torque pattern should be included somewhere in there.
That being said, I'm sure someone here who has one can look it up (I don't yet
)
Goes on dry. Get both the heads and the block super clean (carb cleaner and a rag after scraping off all the old gasket and gunk with a razer blade) before putting them on.
Buy yourself a haynes and chilton manual. That'll cover pretty much everything about your car, and the torque pattern should be included somewhere in there.
That being said, I'm sure someone here who has one can look it up (I don't yet
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From: morrow, ga
Car: 82 S10, 83 280ZX, 84 Z28
Engine: 355 smallblocks..na, 2.8 turbo
Transmission: 85:th350, 84:700R4
Axle/Gears: 85:ford9 4.85, 84:stock 3.24
Re: Head gasket replacement
A service manual would tell you to check the heads for warpage, not to automatically have them milled.
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Joined: Jun 2011
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Car: 1991 Trans Am GTA
Engine: 350 carbed
Transmission: T5
Axle/Gears: 7.5 10 bolt 4.10
Re: Head gasket replacement
Its a given to have any head resurfaced when removing for a possible blown head gasket. Any good certified mechanic (myself) with their wits about them knows not to go through the trouble of putting them on just to take back off a 1000 miles later. Especially a high performance engine which i assume this is! Not here to have a pissing match just stating what i know.
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From: northern VA
Car: 88 Sport Coupe Camaro
Engine: V6 2.8
Transmission: Borg-Warner T-5
Axle/Gears: RPO/GU6: 3.42
Re: Head gasket replacement
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From: Huntsville, AL
Car: 89 Black IROC-Z convertible
Engine: 305 TBI
Transmission: Auto
Re: Head gasket replacement
I do! Unfortunately, its in Alabama and I'm in Texas for 2 more months. So that being of no help to you, a Chiltons or Haynes should tell you everything you need to know. I'm not sure about keeping the pushrods in order but make sure that you roll them on a level surface checking for any bends and check the ends to make sure they are not too badly worn.
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iTrader: (2)
Joined: Jul 2009
Posts: 1,354
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From: morrow, ga
Car: 82 S10, 83 280ZX, 84 Z28
Engine: 355 smallblocks..na, 2.8 turbo
Transmission: 85:th350, 84:700R4
Axle/Gears: 85:ford9 4.85, 84:stock 3.24
Re: Head gasket replacement
Ok. Lets agree to disagree.
Member
Joined: Jun 2011
Posts: 198
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Car: 1991 Trans Am GTA
Engine: 350 carbed
Transmission: T5
Axle/Gears: 7.5 10 bolt 4.10
Re: Head gasket replacement
I do! Unfortunately, its in Alabama and I'm in Texas for 2 more months. So that being of no help to you, a Chiltons or Haynes should tell you everything you need to know. I'm not sure about keeping the pushrods in order but make sure that you roll them on a level surface checking for any bends and check the ends to make sure they are not too badly worn.
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Joined: May 2011
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From: Shelbyville, TN
Car: 1991 RS-5 spd; 1977 Z-28-4 spd,
Re: Head gasket replacement
Its a given to have any head resurfaced when removing for a possible blown head gasket. Any good certified mechanic (myself) with their wits about them knows not to go through the trouble of putting them on just to take back off a 1000 miles later. Especially a high performance engine which i assume this is! Not here to have a pissing match just stating what i know.
---also have them pressure checked---your leak could be from a crack and not a head gasket---especially on aluminum heads.. Member
Joined: Mar 2008
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From: Westminster, Maryland
Car: 1987 IROC-Z
Engine: 383ci SBC
Transmission: 700r4
Re: Head gasket replacement
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From: Washington State
Car: 1983 BB 1995 Z28 Camaro's
Engine: 454-350
Transmission: TH350-4l60e
Axle/Gears: 373 posi-Stock
Re: Head gasket replacement
The original service manual for your car is a wealth of information and well worth the price.
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