Mismatched ported heads

Baddawg53 · 09-02-2021, 07:55 PM

I think I know the obvious answer to this question, "don't do it" ... However for the sake of conversation I'm going to ask anyway...

Let's just say I have a set of ported heads from some random company, let's call them GPI ... And one of those heads ends up being no good. What would be the downfall of putting a head on that's, let's say it's the GM CNC head, on just that one side. So you'd have one brand on one bank and another brand on the other. Flow rate wise I'm sure they're close, but I can't find a side by side comparison. Is this a really bad idea or just a bad idea?

SSUNDVL · 09-02-2021, 08:03 PM

do it and report back lol

KingLT1 · 09-02-2021, 08:51 PM

Sounds about as smart as a 1 legged man entering a ass kicking contest.

*Joshinator99* · 09-02-2021, 08:54 PM

Quote:

Originally Posted by KingLT1

Sounds about as smart as a 1 legged man entering a ass kicking contest.

95 imp · 09-02-2021, 10:44 PM

Would it work? Sure.
Could you do it? Sure

Should you do it?

Well, once there was this one legged guy who entered an ass kicking contest....

Katech_Zach · 09-03-2021, 08:36 AM

Quote:

Originally Posted by Baddawg53

I think I know the obvious answer to this question, "don't do it" ... However for the sake of conversation I'm going to ask anyway...

Let's just say I have a set of ported heads from some random company, let's call them GPI ... And one of those heads ends up being no good. What would be the downfall of putting a head on that's, let's say it's the GM CNC head, on just that one side. So you'd have one brand on one bank and another brand on the other. Flow rate wise I'm sure they're close, but I can't find a side by side comparison. Is this a really bad idea or just a bad idea?

Horrible idea. You're going to be off bank-to-bank. Unless the port volumes and cross-sectional areas are the same, you're going to have different amounts of air entering each bank. If they are close, sure, it might work. If they are far off, you're going to have issues that may result in you hurting your engine.

CNC Port =/= CNC Port.

EDFHOBBIES · 09-03-2021, 08:47 AM

If you ran this you could!..

Baddawg53 · 09-03-2021, 11:08 AM

Is someone gonna finish this story about the 1 legged man???

Baddawg53 · 09-03-2021, 11:12 AM

Quote:

Originally Posted by Katech_Zach

Horrible idea. You're going to be off bank-to-bank. Unless the port volumes and cross-sectional areas are the same, you're going to have different amounts of air entering each bank. If they are close, sure, it might work. If they are far off, you're going to have issues that may result in you hurting your engine.

CNC Port =/= CNC Port.

Thanks for the response.

To be clear, this was not my idea, but a local engine shop. I ordered a new pair of heads this morning.

Puddin · 09-03-2021, 12:20 PM

Quote:

Originally Posted by Baddawg53

Thanks for the response.

To be clear, this was not my idea, but a local engine shop. I ordered a new pair of heads this morning.

I would stay far away from that engine shop.

JKSully · 09-03-2021, 01:04 PM

Quote:

Originally Posted by Baddawg53

Is someone gonna finish this story about the 1 legged man???

Well, he was getting ready to leave to go to the ass kicking contest in his submarine, but before he left, he decided to finally get around to installing the screen door on it....

09-02-2021, 07:55 PM	#1
Baddawg53 Drives: 17 hyper blue 2SS M6 Join Date: Mar 2018 Location: NorCal Posts: 746	Mismatched ported heads I think I know the obvious answer to this question, "don't do it" ... However for the sake of conversation I'm going to ask anyway... Let's just say I have a set of ported heads from some random company, let's call them GPI ... And one of those heads ends up being no good. What would be the downfall of putting a head on that's, let's say it's the GM CNC head, on just that one side. So you'd have one brand on one bank and another brand on the other. Flow rate wise I'm sure they're close, but I can't find a side by side comparison. Is this a really bad idea or just a bad idea?

09-02-2021, 08:51 PM	#3
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 7,583	Sounds about as smart as a 1 legged man entering a ass kicking contest. __________________ 2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel

09-02-2021, 10:44 PM	#5
95 imp Dumb Ass Deluxe Drives: A Tricked Out Mountain Bike Join Date: Jun 2019 Location: Arizona Posts: 1,963	Would it work? Sure. Could you do it? Sure Should you do it? Well, once there was this one legged guy who entered an ass kicking contest.... __________________

09-03-2021, 08:47 AM	#7
EDFHOBBIES Dyno Show Queen LOL Drives: 16 SS & 17 ZL1 Both Yellow Join Date: Jan 2014 Location: Houston Posts: 4,354 View My Garage	If you ran this you could!.. Attached Images __________________ Kong Ported 2650, Crawford Racing Port Injection, Weapon X 112mm Adapter, NW112mm TB, Livernois Ported LT4 Heads, Lingenfelter GT32 stealth cam, Haltech Elite, and Carbon by Trufiber

09-02-2021, 08:03 PM	#2
SSUNDVL Drives: 2016 Camaro SS Join Date: Jul 2020 Location: Dallas, TX Posts: 149	do it and report back lol

09-03-2021, 11:08 AM	#8
Baddawg53 Drives: 17 hyper blue 2SS M6 Join Date: Mar 2018 Location: NorCal Posts: 746	Is someone gonna finish this story about the 1 legged man???

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