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Ported Intake Manifold…see pics

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Old Apr 13, 2023 | 10:45 PM
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Default Ported Intake Manifold…see pics

Picked up this newly ported intake. See pics and lmk your thoughts at least those of you who have experience with porting.






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Old Apr 14, 2023 | 01:38 AM
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Bought mine from a forum member and it didn’t have any kind of repairs like that. it’s been ported out by GPI to fit the 95mm throttle body.
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Old Apr 14, 2023 | 05:16 AM
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That looks some random 12 year-old did that.
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Old Apr 14, 2023 | 07:11 AM
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I had mine done by socal porting and it didn't look that bad but I'm unimpressed with my quality as well.




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Old Apr 14, 2023 | 07:38 AM
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Stuff happens, I would contact who ever ported your intake and ask for them to replace it.
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Old Apr 14, 2023 | 08:01 AM
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My concern is this stuff separating and finding its way inside my engine. Mine is new btw. I will contact the seller today. Man, quality control has fallen off so much nowadays!!
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Old Apr 14, 2023 | 08:03 AM
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Originally Posted by bhvrdr
I had mine done by socal porting and it didn't look that bad but I'm unimpressed with my quality as well.



Are those small cracks in the plastic? Mine looks like repairs in the plastic.
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Old Apr 14, 2023 | 08:47 AM
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A couple of passes with a small ball hone in each port, clean up the intake opening with a cylinder hone, and charge $300 or more in less than an hour. Just clean up the edges to smooth. Helps to see a finished intake to understand what to do.
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Old Apr 14, 2023 | 08:57 AM
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Those look like aggressive porting. I don't have any pictures but mine was slightly ported by a local shop that had experience with porting. If any of you guys need another manifold to be re-ported just PM me. I still have my OEM one in box.
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Old Apr 14, 2023 | 09:17 AM
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Originally Posted by bhvrdr
I had mine done by socal porting and it didn't look that bad but I'm unimpressed with my quality as well.
That's too bad; Ruben did a nice job on mine. I'll see if I can dig up the pics...

*edit*
Here's a link to my pics & install: https://www.corvetteforum.com/forums...post1604041634
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Old Apr 14, 2023 | 10:24 AM
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Originally Posted by Kracka
That's too bad; Ruben did a nice job on mine. I'll see if I can dig up the pics...

*edit*
Here's a link to my pics & install: https://www.corvetteforum.com/forums...post1604041634
Thanks for the info, it's my season for issues lol!
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Old Apr 14, 2023 | 10:42 AM
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Originally Posted by Kracka
That's too bad; Ruben did a nice job on mine. I'll see if I can dig up the pics...

*edit*
Here's a link to my pics & install: https://www.corvetteforum.com/forums...post1604041634
Yours does look a bit better but the runners don't look smooth at all
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Old Apr 14, 2023 | 10:43 AM
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Originally Posted by 01Defense
Are those small cracks in the plastic? Mine looks like repairs in the plastic.
They're not cracks but areas where there are already relief lines and they just failed to smooth them very well
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Old Apr 14, 2023 | 11:29 AM
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Originally Posted by bhvrdr
Yours does look a bit better but the runners don't look smooth at all
The runners are very smooth, running my finger over them was night & day vs. my stock manifold. No edges or rough spots. I'd agree that the work he did on yours vs. mine was definitely subpar.

I've been working with ported manifolds/housings of all types of material from numerous different vendors (including some self DIY jobs) for 16 years now, and the aftermarket in general for about 3 decades, and I do still stand by my comments in the link above. Sometimes it tough to judge port work from pictures alone.
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Old Apr 14, 2023 | 11:30 AM
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That looks fine to me. The more you port the throat of the intake, the more the seams are gonna show. I used a digital caliper to measure the backside of my ported 95 throttle body and then grinded away to match it on the intake side. The bottom of the IM neck doesn't have as much material as the top so I used epoxy on the outside to bolster the integrity. It gets super thin.
The digital caliper also comes in handy to pseudo port match the intake runners to the heads. I found the runners needed a lot of massaging and really concentrate on the short turn too.
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Old Apr 14, 2023 | 01:57 PM
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Originally Posted by Kracka
. Sometimes it tough to judge port work from pictures alone.
Absolutely. Thanks for your feedback and post on yours
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Old Apr 14, 2023 | 01:59 PM
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So I did receive a call and text from the seller. He said “The epoxy is standard when porting.” He stated the porting is aggressive and the epoxy is required in the thin areas. He assured me I would be fine running this intake with no problems. I will post results after I have a chance to track my car with the headers.

thanks to everyone for your input and hopefully my results will be positive !
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Old Apr 14, 2023 | 02:14 PM
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Fore58, I sent you a PM about the manifold, I am interested in it if you still have it. Thanks.
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Old Apr 14, 2023 | 03:02 PM
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Originally Posted by GMAC1
Fore58, I sent you a PM about the manifold, I am interested in it if you still have it. Thanks.
Okay I see it. I will send pictures later today sir.
Sorry about that
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Old Apr 15, 2023 | 09:44 PM
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I got to install the intake today, which was a breeze. Crank her up with no issues.
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