How to tell an OEM SS Hood from aftermarket?
#1
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How to tell an OEM SS Hood from aftermarket?
I found an SS hood for my wife's Z28 and need to know how I can differentiate an OEM SS hood from an aftermarket one?
I would assume that if it is fiberglass then obviously it is aftermarket, right? Anything else to look for?
Thanks
I would assume that if it is fiberglass then obviously it is aftermarket, right? Anything else to look for?
Thanks
#2
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SS hoods are fiberglass from the factory. I got mine off a real SS and it had some stuff written on it....let me go look....
**EDIT** on the underside of the hood it has, in small writing, the U.S. patent number and "Made in Canada" imprinted in it.
**EDIT** on the underside of the hood it has, in small writing, the U.S. patent number and "Made in Canada" imprinted in it.
Last edited by TechCam97; 08-06-2010 at 05:39 PM.
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Yeah I assumed that they were the composite/plastic material that the fenders were made out of.
So who's right - fiberglass or no? Canadian patent or no?
Thanks
So who's right - fiberglass or no? Canadian patent or no?
Thanks
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Any specific issues I need to look for? Mounting holes, cracks in specific places etc..
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#8
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Look They are all marked under the shock mount with a number from SLP, but they are not made of fiberglass. The factory hood does have an insert, but so do the aftermarket one's. Usually alot of the aftermarket ones aren't finished as well on the underside, but that isn't to say that some manufactures do actually gel coat the underside of the hood as well, it just depends on who's hood it is. Also the factory hoods have two clear plastic strips where they contact the headlights and none of the aftermarket ones came with. Its pretty easy to tell the SLP hoods are pretty stiff and resist flexing quite well as the aftermarket fiberglass ones will be easier to twist by hand. I could go on and on and on, but I don't think there is anything more I can tell you with out you just showing me a picture etc... GL!
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#10
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I always thought they were SMC....which is basically just fiberglass but pressed in a mold. So....fiberglass. Mine is a factory piece, it's off a documented car and has all the markings and plastic strips above the headlights. The car I got it off of was involved in an accident and there is a chip on the bottom of the hood near the latch and it's fiberglass alright.
**EDIT** - Unless they are a "composite" material that is coated in Fiberglass through the SMC process and are thus "Fiberglass reinforced". In which case I concede the point to you, Inspector12.
Anywho.... rsscoggins, just look for the tell-tale markings that Inspector12 and I mentioned and you should be fine! Good luck!
**EDIT** - Unless they are a "composite" material that is coated in Fiberglass through the SMC process and are thus "Fiberglass reinforced". In which case I concede the point to you, Inspector12.
Anywho.... rsscoggins, just look for the tell-tale markings that Inspector12 and I mentioned and you should be fine! Good luck!
Last edited by TechCam97; 08-06-2010 at 08:53 PM.
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Manufactured from an OEM-quality sheet molded compound (SMC) process..
SMC is both a process and reinforced composite material. This is manufactured by dispersing long strands (>1”) of chopped glass fibers on a bath of polyester resin. The longer glass fibers in SMC result in better strength properties than standard bulk moulding compound (BMC) products.
SMC is both a process and reinforced composite material. This is manufactured by dispersing long strands (>1”) of chopped glass fibers on a bath of polyester resin. The longer glass fibers in SMC result in better strength properties than standard bulk moulding compound (BMC) products.
#12
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I always thought they were SMC....which is basically just fiberglass but pressed in a mold. So....fiberglass. Mine is a factory piece, it's off a documented car and has all the markings and plastic strips above the headlights. The car I got it off of was involved in an accident and there is a chip on the bottom of the hood near the latch and it's fiberglass alright.
**EDIT** - Unless they are a "composite" material that is coated in Fiberglass through the SMC process and are thus "Fiberglass reinforced". In which case I concede the point to you, Inspector12.
Anywho.... rsscoggins, just look for the tell-tale markings that Inspector12 and I mentioned and you should be fine! Good luck!
**EDIT** - Unless they are a "composite" material that is coated in Fiberglass through the SMC process and are thus "Fiberglass reinforced". In which case I concede the point to you, Inspector12.
Anywho.... rsscoggins, just look for the tell-tale markings that Inspector12 and I mentioned and you should be fine! Good luck!
Jeff
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Nope - it's all good
Thanks for the information - hopefully it is an OEM hood - it has been repainted so I am not sure if the plastic strips got removed. He did say the insert was with it. I will look for the markings above the shock tower
Thanks
Thanks for the information - hopefully it is an OEM hood - it has been repainted so I am not sure if the plastic strips got removed. He did say the insert was with it. I will look for the markings above the shock tower
Thanks
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Aha - thanks for that - I was thinking above where the struts/shocks mount to the car. I forgot that these things had those gas shocks/struts for the hood.
Speaking of which - are these struts/shock for the hood mount the same?
Speaking of which - are these struts/shock for the hood mount the same?
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Got the hood - paint is an excellent match!! Now that's how a Z28 should have looked from the factory!!
Anyway, it did have the made in Canadian stamp and patent information as well as SMC stamped under the hood very close to the patent information.
I am in the process of doing the pain in the a$$ hood adjustments to get the gaps just right - sometimes I hate being a perfectionist.
Thanks for everyones help on this!
Anyway, it did have the made in Canadian stamp and patent information as well as SMC stamped under the hood very close to the patent information.
I am in the process of doing the pain in the a$$ hood adjustments to get the gaps just right - sometimes I hate being a perfectionist.
Thanks for everyones help on this!