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#1
06-25-2012, 08:42 AM
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V8 head bolt removal order
Dumb question of the day, on a Pontiac V8, is there any special order to removing the head bolts?
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 "GTO......Gas, Tires and Overdraft"! '70 GTO convertible, 434, 4-speed |
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#2
06-25-2012, 09:23 AM
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No, not for removing them.
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#3
06-25-2012, 09:27 AM
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Thanks Icefan, I though so, but I wanted to make sure!
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"GTO......Gas, Tires and Overdraft"! '70 GTO convertible, 434, 4-speed |
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#4
06-25-2012, 09:56 AM
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Other than on a second gen TA the back bolt by the AC box and sometimes the power booster have to stay in the head when you pull them in the car.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#5
06-25-2012, 12:23 PM
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Definitely, ALWAYS some tricks to installing heads on a Pontiac.
Another thing to remember is to identify (in some manner) the left head (driver's side) from the right (passenger side) head. If you have a 65 up head, the passenger side head (with the heater nipple located by the firewall) is always a good clue for proper installation. I have actually seen guys install the heads flipped side for side and then call me when they said that "the intake will not go on right. The water hose, thermostat is by the firewall and there was no way the distributor is going to fit." When you are in a hurry you always have this stuff happen. Tom Vaught
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
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#6
06-25-2012, 06:21 PM
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Quote:
I crack them all loose in reverse torque-sequence order--working from outside to middle. Once they're all a quarter- or half-turn loose, remove them in reverse torque-sequence order. |
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#7
06-25-2012, 07:47 PM
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For best results, the head bolts against the fire wall go along for the ride, as the head is removed/installed.
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#8
06-25-2012, 07:53 PM
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While on the subject of removal, I can't ever recall seeing a torque pattern for install in any Pontiac-printed Service Manual. Is my memory failing me on that?
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#9
06-25-2012, 11:04 PM
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I've seen just recently what looks to be a GM tightening sequence copied onto the web. Of course I can't find it now, it's in my favorites somewhere.
__________________
"GTO......Gas, Tires and Overdraft"! '70 GTO convertible, 434, 4-speed |
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#10
06-26-2012, 12:14 AM
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Quote:
Jim
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65 Catalina sedan. Allen Thomas Performance 495. KRE Heads at 310cfm ported by SD Performance, ProSystems Dominator carb on ported Victor intake, P-Dude custom grind hydraulic roller, MSD ignition, 3.50 Moser/Ford rear. F-Glass front bumper by son Rob, rear by the old man and joint effort for trunk lid. 3950# w/driver. Best of 9.5761/139 on 175 shot, 6.01 /114 in 1/8. |
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#11
06-26-2012, 12:42 AM
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Quote:
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Peace, through close combat. |
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#12
06-26-2012, 01:26 AM
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I use an impact wrench for removal - although I reverse order the install procedure, so I loosen number 10, 9, 8 and so forth. All my Pontiac service manuals list the tightening sequence. Nothing more than a spiral starting from the center outward:
8.....4.....1.....5.....9 7.....3.....2.....6.. .10
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Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 2+2 survivor AC auto -- 1965 Catalina Safari Wagon. |
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#13
06-27-2012, 08:16 AM
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Quote:
__________________
"GTO......Gas, Tires and Overdraft"! '70 GTO convertible, 434, 4-speed |
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