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09-19-2009, 09:35 AM
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#1
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Join Date: Mar 2005
Location: Long Branch, NJ
Posts: 333
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*** LT1 engineers
So I bought locking header bolts cause mine keep walking out and causing a 90% rich condition... started this morning, got one bolt out, one in, couldnt get the lock retainers on, and left it at that. Studying the rest of the header bolts, I've decided its a physical impossibility to change them without dropping the motor and taking the headers completely off while you undo every bolt at the same time. I havent even started to guess what it takes for the passenger side.
So, in light of this, anyone here want to earn some money, and do this **** for me before I throw my tools throught the front windshield?
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Current:
2002 Silver Metallic Kawasaki ZZR1200C1
Old:
2003 White Crown Vic P71 *sold*
1996 Burnt Red Metallic Trans Am M6 Ram/LE2/4.11 *sold*
2000 Silver Cougar V6 M5 *totalled haha*
1986 Black Cutlass Calais Coupe M5 *sold*
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09-19-2009, 09:36 AM
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#2
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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No no no.
That is an SLP crappy product at fault. I can change all mine no problemo.
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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09-19-2009, 09:42 AM
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#3
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Join Date: Mar 2005
Location: Long Branch, NJ
Posts: 333
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PS I think I swallowed a sizeable amount of locktite... anyone know the fatal dossage level? Don't ask how.
__________________
Current:
2002 Silver Metallic Kawasaki ZZR1200C1
Old:
2003 White Crown Vic P71 *sold*
1996 Burnt Red Metallic Trans Am M6 Ram/LE2/4.11 *sold*
2000 Silver Cougar V6 M5 *totalled haha*
1986 Black Cutlass Calais Coupe M5 *sold*
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09-19-2009, 10:07 AM
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#4
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Power Member / trans break does not equal transbrake
Join Date: May 2009
Location: The Meadowlands
Posts: 4,513
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Quote:
Originally Posted by grandkodiak
PS I think I swallowed a sizeable amount of locktite... anyone know the fatal dossage level? Don't ask how.
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sounds like you had a good time lol
i can also remove all my head bolts fairly easy with my pacesetter LTs
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99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
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09-19-2009, 10:31 AM
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#5
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Join Date: Sep 2006
Location: north jersey
Posts: 1,680
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yeah, my header bolts are pretty easy to get to, you just need the right tool to get at the angle.
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09-19-2009, 10:32 AM
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#6
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Join Date: Dec 2004
Location: manchester, NJ
Posts: 1,775
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sorry only 1/2way on topic here... are locking header bolts really worth it... do they really work well enough not to have the bolts ever back out...
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97 Firebird Formula - 383LT1
15 Subaru WRX - 2.0L-turbo
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09-19-2009, 10:39 AM
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#7
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Join Date: Sep 2006
Location: north jersey
Posts: 1,680
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i never had a problem with my bolts coming out, after i installed my headers i did have to tighten the bolts after a week but that happens. other than that they stayed right in.
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09-19-2009, 10:59 AM
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#8
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11 second club / Moderator
Join Date: Aug 2004
Location: West Berlin, NJ
Posts: 7,148
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I noticed when I had my SLP headers that you need to do every bolt little by little. You cant tighten one bolt and do the rest. I also go some thin walled brenches that fit in there just enough.
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2001 Trans Am WS6 •SLP Loudmouth II •UMI Suspension •12.857 @ 109.57
1996 Trans Am WS6 •Pacesetter Longtubes •Strange 12 Bolt •Spohn Suspension •11.152 @ 123.85
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09-19-2009, 11:02 AM
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#9
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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Quote:
Originally Posted by transmaro93
sorry only 1/2way on topic here... are locking header bolts really worth it... do they really work well enough not to have the bolts ever back out...
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if you do use locking bolts, they will never back out. i had issues with mine working loose over time. i feel that with the new setup, it will only be worse.
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09-19-2009, 11:06 AM
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#10
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Join Date: Dec 2004
Location: manchester, NJ
Posts: 1,775
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welll i just found some really trick style locking bolts.... they have the bolt that is cut in 4ths and then a set screw in themiddle of the bolt.... you tighten the bolt down like a normal bolt... then you tighten the set screw and it spreads the bolt inside the head making it impossible to back out.... i think im gonna get them...
__________________
97 Firebird Formula - 383LT1
15 Subaru WRX - 2.0L-turbo
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09-19-2009, 11:35 AM
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#11
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10 Second Club
Join Date: Feb 2008
Location: Eatontown
Posts: 1,647
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Quote:
Originally Posted by transmaro93
welll i just found some really trick style locking bolts.... they have the bolt that is cut in 4ths and then a set screw in themiddle of the bolt.... you tighten the bolt down like a normal bolt... then you tighten the set screw and it spreads the bolt inside the head making it impossible to back out.... i think im gonna get them...
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I got a set of them and never installed, they look like quality bolts. Percy's split lock header bolts
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1999 C5 FRC: 12.7@114
2008 TBSS: 12.48@108
2017 Silverado 2500 do you even lift breh?
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09-19-2009, 11:44 AM
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#12
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Join Date: Mar 2005
Location: Long Branch, NJ
Posts: 333
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yea the locking bolts i have are the stage 8 blahblahblah models, they have a half moon sleeve that slips on that fits snug flat side against the header tube outlet, so its physically impossible for the bolt to loosen once on unless it cuts through the header tube haha. problem is... they are 1 inch bolts, and on 2 of the 6 bolts are blocked by the header tube itself, they CANT come out far enough to come out, unless the headers are pulled out at the same time. the other bolt, mounts the traction control unit (i think i forget) and they dont have a locking bolt that long.
other then that the front most one is easy (the one i did lol) and the rear most, but thats hard to reach, at least enough not to be able to put on the locking sleeve and half moon piece unless the motor was out of the car.
annnnnnnnnd... thats only the drivers side. the passenger side, i can only physically see 2 of the bolts, let alone get a tool down there... and far from a torque wrench, with any combo of u joints and extensions haha. maybe with six hands the size of a small child, some lube, and superglue on the sockets............ but yeaaaaaaa. im done with this attempt. yet another simply thing turn horribly ugly multi hour job thanks to stupid design.
but seriously, if anyone has these headers, and knows any tricks or has some custom tools and is willing to do the work, name your price.
__________________
Current:
2002 Silver Metallic Kawasaki ZZR1200C1
Old:
2003 White Crown Vic P71 *sold*
1996 Burnt Red Metallic Trans Am M6 Ram/LE2/4.11 *sold*
2000 Silver Cougar V6 M5 *totalled haha*
1986 Black Cutlass Calais Coupe M5 *sold*
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09-19-2009, 12:35 PM
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#13
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Lord of the rings / 10 Second Club / Meet Coordinator
Join Date: Aug 2004
Location: Millstone Township, NJ
Posts: 6,359
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The provided hooker bolts backed out on me after a dyno tuning session. Trashed the gasket so got new ones along with some nice ARP header bolts with a slightly smaller head. I was able to tq them down nicely and they haven't loosened since I did this at least 4 years ago.
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97 T/A Ram Air Convt
Forever dyno queen / 777rwhp 662 rwtq @ 17lbs / 10.2 @ 140
'24 Corvette Z06
17 Sierra 2500HD Dmax
81 Turbo TA
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09-19-2009, 01:04 PM
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#14
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Hippy Mod, Bergermeister Meisterberger, Moderator
Join Date: Aug 2004
Location: Ewing
Posts: 6,213
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The driver's side is more difficult if I remember because you have to work a couple of the bolts in at the same time if the tubes block them from getting started at a straight angle. Did you get new gaskets? If not, you should probably get new gaskets because you will need to loosen all the header bolts and pull the header away from the head to get the old bolts out and the new ones in at a straight angle. I've used the Stage 8 bolts on 3 cars now and I think they are worth it. Be prepared to file down some of the locks to get them to line up with the bolt and the header tube, but it's not that big of a deal. The locks are easy, the clips are a pita.
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69 Z28 JL8 4 wheel disc brakes - being restored
09 Silverado Z71
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09-20-2009, 06:35 PM
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#15
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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09-21-2009, 09:24 AM
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#16
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Sliderule / Moderator
Join Date: Oct 2004
Location: Catawissa PA
Posts: 2,294
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Those split bolts look pretty trick!
But based on the gaskets your using you may still need to go through and retighten after a few heat cycles.
I have one of the first sets of Jethot headers for the 93s and there is no room for the locking type bolts. Because my heads are heavily ported the only gaskets that fit are the Felpro race gaskets which has almost no material on the ends, so if the bolts get loose they blow out the ends of the gaskets.
What I do is to spray the gaskets with copper coat, then keep tightening the bolts (ARP stainless and I use anti-seize), through 5-6 heat cycles and they will finally stay without backing out. I've taken a offset boxed wrench to the grinder to make it thin enough to pass between the bolt head and header tube and cut it down so I can get bolts tightened down properly. To get to the very back bolts on the pass side I find it best to get from the bottom.
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93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada
1) Build it
2) Race it
3) Break it
4) Repeat!!!
Last edited by Pampered-Z; 09-21-2009 at 09:26 AM.
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09-26-2009, 04:30 PM
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#17
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Join Date: Jul 2009
Location: barnegat nj
Posts: 1,340
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install help..........
1)remove cradle,engine,trans & misc. all @ same time
(taking out from below car)
2)take the engine , trans, kmember & those stupid f*****n header bolts & place the out @ the curb for the garbage man
3)install ls series engine w/ m6 trans and 98-02 kmember w/ecm & harness.
4) NO MORE HEADER BOLT PROBLEMS & JUST GAINED A ****LOAD MORE H.P. !!!!!
LET ME KNOW HOW YOU MAKE OUT !!!
Last edited by Tru2Chevy; 09-27-2009 at 04:24 PM.
Reason: Trying to get around the word filter
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