# Upper intake manifold

**URL:** <https://community.cartalk.com/t/upper-intake-manifold/166085>\
**Category:** Maintenance/Repairs\
**Tags:** mustang, ford\
**Created:** [June 20, 2020, 9:30pm UTC](https://community.cartalk.com/t/upper-intake-manifold/166085 "2020-06-20T21:30:52Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![Cody-40](https://avatars.discourse-cdn.com/v4/letter/c/85e7bf/32.png) [@Cody-40](https://community.cartalk.com/u/Cody-40)\
**Post date:** [June 20, 2020, 9:30pm UTC](https://community.cartalk.com/t/upper-intake-manifold/166085/1 "2020-06-20T21:30:52Z")

</div>

I need to know if the intake manifold for a v8 4.6 will fit and operate the same as an intake from a v8 5.4 my engine is the 5.4

 ![20200619_182826](https://global.discourse-cdn.com/cartalk/original/3X/2/4/248d58e8eaa0aeb456160eb16260acc22a2afcd7.jpeg)

---

<div class="post-metadata">

**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [June 20, 2020, 9:32pm UTC](https://community.cartalk.com/t/upper-intake-manifold/166085/2 "2020-06-20T21:32:41Z")

</div>

Go to RockAuto and see if the part numbers are the same.

Tester

---

<div class="post-metadata">

**Author:** ![Cody-40](https://avatars.discourse-cdn.com/v4/letter/c/85e7bf/32.png) [@Cody-40](https://community.cartalk.com/u/Cody-40)\
**Post date:** [June 20, 2020, 9:33pm UTC](https://community.cartalk.com/t/upper-intake-manifold/166085/3 "2020-06-20T21:33:27Z")

</div>

I did but the part looks different even with the same part number

---

<div class="post-metadata">

**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\
**Post date:** [June 20, 2020, 9:34pm UTC](https://community.cartalk.com/t/upper-intake-manifold/166085/4 "2020-06-20T21:34:48Z")

</div>

Post links to the two parts, we’ll check it out.

---

<div class="post-metadata">

**Author:** ![Cody-40](https://avatars.discourse-cdn.com/v4/letter/c/85e7bf/32.png) [@Cody-40](https://community.cartalk.com/u/Cody-40)\
**Post date:** [June 20, 2020, 10:05pm UTC](https://community.cartalk.com/t/upper-intake-manifold/166085/5 "2020-06-20T22:05:11Z")

</div>

> **[Mustang Intake Manifold Kit (99-04) GT - LMR.com](https://lmr.com/item/LRS-9424C/Mustang-GT-Intake-Manifold-Kit-99-04?gclid=CjwKCAjw57b3BRBlEiwA1ImytoZB2BSvFA_-KrYaWyeEWdC4jsUv3MiIGCyPFl7TzT2kdze62lF5thoCItMQAvD_BwE)**
>
> Does your 99-04 Mustang GT 4.6L have a cracked water transfer tube on the intake manifold? We have you covered with this stock style replacement!

---

<div class="post-metadata">

**Author:** ![Cody-40](https://avatars.discourse-cdn.com/v4/letter/c/85e7bf/32.png) [@Cody-40](https://community.cartalk.com/u/Cody-40)\
**Post date:** [June 20, 2020, 10:08pm UTC](https://community.cartalk.com/t/upper-intake-manifold/166085/6 "2020-06-20T22:08:29Z")

</div>

and the part that was on is cracked and couldn’t find a link to the part …i appreciate the help the part that is broke is pictured in the post

---

<div class="post-metadata">

**Author:** ![Bugmenot](https://avatars.discourse-cdn.com/v4/letter/b/7c8e57/32.png) [@Bugmenot](https://community.cartalk.com/u/Bugmenot)\
**Post date:** [June 20, 2020, 10:18pm UTC](https://community.cartalk.com/t/upper-intake-manifold/166085/7 "2020-06-20T22:18:44Z")

</div>

This won’t work. The 4.6 manifold is narrower than the 5.4. The ports won’t even be close to lining up.

[Here’s a brief video](https://www.youtube.com/watch?v=HO7fUFcixtA) showing the modification of an aftermarket 4.6 carburetor manifold to fit a 5.4.