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#1034696 - 01/30/16 07:33 AM Front nose replacement?  
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Phil87SS Offline
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Phil87SS  Offline
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Gilbert, Arizona
Has anyone replaced the nose on their SS? Not talking about the LS to SS conversion kits but just the nose.
I have seen NOS original noses for about $500 but after almost 30 years even a new in-the-box nose is bound to be wavy as quality control was not to good on the flex parts at the time.
That leads me to think of a fiberglass replacement as they claim they are dead-straight and I do have quite a bit of experience with fiberglass.
I mentioned this to one of the other mods about a year or so ago and he mentioned not being happy with a fiberglass unit he had (If I remember he said he bought a stock one to replace it)
So does anyone have any experience with aftermarket noses be it Fiberglass or the standard urethane?
What about fit? Prices?
-Thanks


1987 Monte Carlo SS, '78 406, Speed Density TPI, Herbert Hyd Roller Cam, Trick-Flow "Twisted Wedge" 1st gen alum. heads, 11.0:1 compression, Sealed-Power pistons w/gapless rings, Mallory CD ignition, 30 lb Accel injectors, Edelbrock headers, Bosch external fuel pump, 36 lb Centerforce flywheel, 1993 T-56 6-speed,Hurst shifter and stock 3:73 Posi.
#1034700 - 01/30/16 09:18 AM Re: Front nose replacement? [Re: Phil87SS]  
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MikesMontes Offline
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MikesMontes  Offline
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west central ohio
The new GM noses where made in the last 2-3 years


www.mikesmontes.com
1-800-811-5851
We have all your 4th Gen Monte Carlo needs
#1034704 - 01/30/16 01:54 PM Re: Front nose replacement? [Re: Phil87SS]  
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howehot Offline
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howehot  Offline
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Lawler, IA
I did a conversion with an Honest Charley piece on our El Camino. Fit was great but it took a lot of block sanding to get it straight. It was fiberglass. My worry with it is there is zero bend to it. Any curb or tap is not going to be forgiving.

#1034769 - 02/01/16 03:28 AM Re: Front nose replacement? [Re: Phil87SS]  
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gmachinz Offline
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gmachinz  Offline
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Des Moines, Iowa
I've used a few NOS nose assemblies on complete paint jobs and I've never had any problems with them. I will say the gap between the nose and hood can take some tweaking to get decent looking. My biggest issue deals not with the SS nose but with the crappy aftermarket chin spoilers. I'd suggest staying with a GM nose and trying to find a GM chin spoiler if you are doing a serious build.

But back to the nose assemblies, they don't have the same level of "warp" as a nose that's spent its life in the elements and in the sun a lot. The surface smoothness on new ones is awesome-literally just scuff it, hit it with wax/grease remover and you're good to go!


gbodyparts1234@yahoo.com

HARNESSWORX
#1034770 - 02/01/16 03:42 AM Re: Front nose replacement? [Re: howehot]  
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gmachinz Offline
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gmachinz  Offline
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Des Moines, Iowa
Originally Posted By: howehot
I did a conversion with an Honest Charley piece on our El Camino. Fit was great but it took a lot of block sanding to get it straight. It was fiberglass. My worry with it is there is zero bend to it. Any curb or tap is not going to be forgiving.


I'll say if that front end flexes when cornering hard, that fiberglass nose will crack. On my 80 Monte I added GP fender braces, heavier duty 3/8" radiator support braces and GP inner fenders w/bracing. The GP stuff is much more stout since the GP front ends are typically heavier so they require more brace stiffening.


gbodyparts1234@yahoo.com

HARNESSWORX
#1034821 - 02/02/16 03:40 PM Re: Front nose replacement? [Re: gmachinz]  
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howehot Offline
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howehot  Offline
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Lawler, IA
Originally Posted By: gmachinz
Originally Posted By: howehot
I did a conversion with an Honest Charley piece on our El Camino. Fit was great but it took a lot of block sanding to get it straight. It was fiberglass. My worry with it is there is zero bend to it. Any curb or tap is not going to be forgiving.


I'll say if that front end flexes when cornering hard, that fiberglass nose will crack. On my 80 Monte I added GP fender braces, heavier duty 3/8" radiator support braces and GP inner fenders w/bracing. The GP stuff is much more stout since the GP front ends are typically heavier so they require more brace stiffening.


I personally don't think the fiberglass would break under hard corner with a stock chassis. Pretty thick and reinforced with multipal attaching points. Ours has seen very hard cornering, the Monte pulled .98g on a skid pad for Super Chevy, but the Schwartz Performance chassis stiffens the the chassis by 200% so flex is pretty much nonexistent. We also added a 2" lower valance to it and filled the body line. The extensions are fiberglass but the overall fit was great. Biggest problem was the grill. Way to small for the opening so I epoxied abs plastic to it and shaped it to fit.


#1034829 - 02/02/16 06:24 PM Re: Front nose replacement? [Re: Phil87SS]  
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gmachinz Offline
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Des Moines, Iowa
I'm not referring to chassis flex-I know you've got that covered....I'm referring to body flex. The sheet metal will try to "move" from inertia alone-however, if you have a front brace tying in the ends of the frame horns @ the bumper attachments that will certainly cut down on that!


gbodyparts1234@yahoo.com

HARNESSWORX
#1034852 - 02/03/16 11:39 PM Re: Front nose replacement? [Re: Phil87SS]  
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ss4ever Offline
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Shelbina, Missouri
Most G-bodys other than the MCSS and the GP 2+2 had fiberglass header panels and didn't have trouble cracking. As long at the aftermarket MCSS fiberglass nose is built right it should be fine as well.


1983 Monte Carlo SS Turnkey ZZ4/700R4, Dakota Digital Instrument Cluster, 77k mile car. Many more mods to come soon.
#1034864 - 02/04/16 02:44 PM Re: Front nose replacement? [Re: ss4ever]  
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howehot Offline
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Lawler, IA
Originally Posted By: ss4ever
Most G-bodys other than the MCSS and the GP 2+2 had fiberglass header panels and didn't have trouble cracking. As long at the aftermarket MCSS fiberglass nose is built right it should be fine as well.


I agree.

#1034867 - 02/04/16 04:06 PM Re: Front nose replacement? [Re: Phil87SS]  
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PB86SS/87LS Offline
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PB86SS/87LS  Offline
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New Berlin, WI
Good point. And in either case, the fiberglass header panels or plastic bumper covers, much of the flex the car experiences would come from the frame/chassis itself. They're somewhat connected to the core support and indirectly the frame but it leaves room for some give.


-86'SS 383 CCC QJet- BRF 2004r-8.5" 3.42
-87'LS 350 MAF/SD TPI- CRF 2004r-7.5" 3.42
-81'Grand LeMans Safari Wagon 350 CCC Q-Jet/CZF 2004-r/8.5" 3.73
-07'TBSS Stockish daily driver
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#1035047 - 02/12/16 10:04 PM Re: Front nose replacement? [Re: Phil87SS]  
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MAP Offline
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MAP  Offline
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Yuma, AZ
Hi Folks,

In the nose area regarding fiberglass, the biggest problem would probably be excessive motion between the frame and the body. With the soft stock bushings, this can be as much as 3/4" p-p up/down and probably a similar amount transversely. Using solid bushings in the #1 location should eliminate this, and tighten-up the sense of steering precision considerably.

About the torsional stiffness of the frame, the stock frame overwhelmingly derives this by virtue of its compliant attachment to the body (I measured about 2,000 lb-ft/deg for a frame thus coupled to the body, without a hood.) Even in the case of the Schwartz frame, I suspect the majority of its torsional stiffness still derives via its attachment to the body, and especially since they use solid bushings to make that attachment.

Best,
MAP

Last edited by MAP; 02/13/16 12:50 AM.

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