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December 22nd, 2004, 03:17 AM
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o ringed heads
Ok got my motor down for rebuild right now and the drivers side head has been o-ringed. The pass side not. I am checking with my shop about getting the other one down as both heads were ported and bigger valves put in sometime in its life. Now for my question, when the heads are o-ringed do you have to run a wire in the o-ringed part or do the gaskets just push up into it when you put the heads on? What kind of gaskets would you guys recommend with this thanks Daniel
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86 t-type t-63 turbo, 55lb inj, meise uppipe,pitbull exhaust from turbo back, 7th inj, hot wire kit, twin pumps,volt booster on alt, LIQUID intercooler, moser axles,bags in both rear springs, 3500 pats convertor,balanced motor ,weisco pistons, GN1 alum. heads, RJC clamps,210 roller cam with T&D 1.5 roller rockers. HRparts upper and lower rear arms and Now with a Brian Hofer full built up tranny and it ROCKS!  ______________________ 86 T type 68 400 firebird 79 trans am 87 monte carlo SS 57 210 post 2 door     
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December 22nd, 2004, 04:54 AM
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The Felpro 1007 gaskets have the wire (not really a wire, more like a raised circular lump of metal
 ) built in. Just put 'em on like stockers. You can get them from Summit, part number Fpp-1007.It's very important the heads be machined perfectly. Not every machinist can do it. I would recommend Dan Strezo, of DLS Engine out of Wheatfield, Illinois.
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December 22nd, 2004, 07:23 AM
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You should have your machine shop check the head(s) to determine if it is a reciever groove, or if the head was machined for an O-ring wire, which has been removed. Contact the prior owner if you can to find out why he did this--obviously one of the heads had to be replaced, and it would be beneficial to know why. You can then decide where you want to proceed from there. Good luck. Brian
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'86 GN w/ a RPE bullet. Just about everything else from Cotton's Performance. 10.33 @ 136.55 on first outing with boost issues. 16,000 mi. original owner.
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December 22nd, 2004, 11:53 AM
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it must be a reciever groove I think. Its about 1/8 in wide and it 10 thous deep, going to stop and talk to him today on the way to work at the shop Daniel
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86 t-type t-63 turbo, 55lb inj, meise uppipe,pitbull exhaust from turbo back, 7th inj, hot wire kit, twin pumps,volt booster on alt, LIQUID intercooler, moser axles,bags in both rear springs, 3500 pats convertor,balanced motor ,weisco pistons, GN1 alum. heads, RJC clamps,210 roller cam with T&D 1.5 roller rockers. HRparts upper and lower rear arms and Now with a Brian Hofer full built up tranny and it ROCKS! ______________________ 86 T type 68 400 firebird 79 trans am 87 monte carlo SS 57 210 post 2 door
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December 22nd, 2004, 10:41 PM
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this is just a thought here, but if both the cylinders, and all the oil and coling ports had orings there would be no need for a gasket at all would there be? thats assuming the block and heads are 100% flat. wouldn't that be the way to go? you should get a little more compression, and all around be better, aside from the price?
and why would they just oring the drivers side? just wanting to learn someting here..
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87 turbo T. its just a big, heavy, v6 with a little turbo on it. sold... i miss it! 99 regal gs supercharged- daily driver, rice killer. Sold it. 06 cobalt, have to deal with $3+ a gallon for gas somehow. 38mpg cessna 172, taking all my money. "stupid ricers, wings are for airplanes."
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December 23rd, 2004, 03:13 AM
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why would they just oring the drivers side Who knows?? But that is what I have to work with so I figured that I will just have the other one done and be money ahead with a better seal to boot. On the felpro 1007s how deep does the reciever groove need to be in the head? Thanks a ton guys Daniel
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86 t-type t-63 turbo, 55lb inj, meise uppipe,pitbull exhaust from turbo back, 7th inj, hot wire kit, twin pumps,volt booster on alt, LIQUID intercooler, moser axles,bags in both rear springs, 3500 pats convertor,balanced motor ,weisco pistons, GN1 alum. heads, RJC clamps,210 roller cam with T&D 1.5 roller rockers. HRparts upper and lower rear arms and Now with a Brian Hofer full built up tranny and it ROCKS! ______________________ 86 T type 68 400 firebird 79 trans am 87 monte carlo SS 57 210 post 2 door
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December 23rd, 2004, 08:35 AM
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the instructions that come with the 1007 gasket has the dimensions for machining the grooves. I believe the depth is .008", but check the instructions.
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Todd Kay 87GN 10.90 / 126 04.5 Cummins Black
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December 23rd, 2004, 11:20 AM
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I think the instructions say 8thou, but many (including yours truely) have had weeping headgaskets when using these things. I have seen many folks recommend 12thou. If I were you I would strongly recommend you call the Felpro tech line and talk to them about it. Make sure they understand you don't want a leaky headgasket
 . I have heard they are recommending a deeper groove now.
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87GN: 3.8 JE's, girdle, Champ Irons, 210/210 roller, T64e, 55lbs Dephis', Trans/LS1, V4R, 3200LU, alky injc....and all the other basic stuff
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December 23rd, 2004, 07:59 PM
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Quote:
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 Not stock anymore!!!!
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December 23rd, 2004, 11:35 PM
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Your saying machine the groove out of the heads? I am in the same predicament, although both my heads were grooved for loc-wires. Will machining that much off the head mess up the alignment for the intake or anything? Sorry to jump in here, you guys brought up a few questions.
Thanks, Squid
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85 GN, converted to 87 IC'ed stuff. TE-44, 60lb Mototrons, Ron Anderson ported big valve heads, DIY ported stock intake, modded upper plenum, 204/214 cam, 3" THDP, test pipe w/dump, 3.5" to 3" single shot with bullet, HUH? Neal Chance 3,000 converter, wired 340, DIY turbo saver, DIY stock boxed uppers and lowers, poly bushings EVERYWHERE, TLink 4.0, Tach, boost, knock, oil PSI, H20 temp gauges, F body rad, Intrepid dual fans, Turbo Tweak chips!!! DAILY DRIVER: made it from Kansas to Florida, back to Kansas, then to San Diego, CA. 
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December 24th, 2004, 10:29 AM
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Quote:
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Not stock anymore!!!! Last edited by Under Pressure : December 24th, 2004 at 10:32 AM.
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February 2nd, 2005, 11:08 AM
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one thing to note on my kit. It comes with 4 head gaskets. You can adjust the compression of the motor depending on how many you stack. You can stack as many as 3 per side. each gasket is worth .5 in compression. For instance if you have the stock 8.5:1 compression. if you use two gaskets the compression remains the same. if you use 3 it is at 8.0:1 if you use 1 gasket per side then you are at 9.0 to one.
This is a very nice feature. IMO
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Race Jace, Jason Cramer RJC Racing The leaders in Performance Buick Product Developement. Click here to e-mail RJC Racing 1st ever 9 sec TSM car!! 2002, 2003 & 2004 GSNats heads up TSM class winner 87 GN TSM Street car 9.63@141 RJC Girdled stock block,200 trans, RJC A.D.Power Plate-p, full interior, cold A/C, with lil Jace's GN carseat in the back! New best 6.05 @ 113 1/8mi at 2007 West coast nats in Phoenix. (To bad I did not get a chance to run the whole 1/4 at this event....)
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