Another Intake Question
Fleet Mechanic
Joined: Oct 2025
Posts: 1,728
Likes: 381
Heads alone won't be enough especially gt40. Gt40p would be better but you will run into header issues. I. picked up gt40 upper and lower intake. I can confirm they do NOT clear the valve covers. Not close. I will clean them up and resetl them. The seller through in the throttle body and ECU. I guess I will look for a stock lower and have it ported.
Hotshot
Joined: Jun 2015
Posts: 12,811
Likes: 2,431
I would think GT40 heads won’t get you anything more than the E7’s with the stock flat tappet cam.
I agree. The GT40 intake should work with pedestal mount rocker arms. I assume your AFR 165 heads are stud mount?
Heads alone won't be enough especially gt40. Gt40p would be better but you will run into header issues. I. picked up gt40 upper and lower intake. I can confirm they do NOT clear the valve covers. Not close. I will clean them up and resetl them. The seller through in the throttle body and ECU. I guess I will look for a stock lower and have it ported.
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Cross-Country
Joined: Mar 2015
Posts: 66
Likes: 5
No they are pedestal mount. I have the ford racing valve covers. I even tried my stock valve covers and it would not work. I am trying to decide whether to use a spacer or get a stock lower and have it ported. Porting is not for me. It look so easy but I cannot control the bit evidently.
Mountain Pass
Joined: Feb 2017
Posts: 182
Likes: 58
From: Kentucky
It looks like you are using a ball burr from the trough that you cut. Ideally, find an aluminum cut pineapple of football burr for smoother cutting. Keep the burr moving from corner to corner with moderate pressure. If you find that you are digging in too much, slow down the grinder and lighten up the pressure until you get a better feel for it.
So, how did you lay out your lines that you are grinding to and how large are you going? Are you aware that the AFR 165 intake ports are offset from the stock position?
So, how did you lay out your lines that you are grinding to and how large are you going? Are you aware that the AFR 165 intake ports are offset from the stock position?
Thread Starter
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Cross-Country
Joined: Mar 2015
Posts: 66
Likes: 5
It looks like you are using a ball burr from the trough that you cut. Ideally, find an aluminum cut pineapple of football burr for smoother cutting. Keep the burr moving from corner to corner with moderate pressure. If you find that you are digging in too much, slow down the grinder and lighten up the pressure until you get a better feel for it.
So, how did you lay out your lines that you are grinding to and how large are you going? Are you aware that the AFR 165 intake ports are offset from the stock position?
So, how did you lay out your lines that you are grinding to and how large are you going? Are you aware that the AFR 165 intake ports are offset from the stock position?
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Mountain Pass
Joined: Feb 2017
Posts: 182
Likes: 58
From: Kentucky
I would recommend making an accurate template of your heads and using that to layout for your intake manifold. How accurate you need to be will depend on how large you plan on making the manifold port exits. Which gasket are you using?
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Cross-Country
Joined: Mar 2015
Posts: 66
Likes: 5
Fel pro m-9439-a50. I laid the gasket on the head to check alignment and then place the intake on the heads. I traced/marked the gasket while it was dry fit. I pulled the gasket off and set it on the intake lining up the marks and traced the ports.
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