Any luck with stock manifolds and Holley 12618HKR swap mounts?? - Team Camaro Tech
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post #1 of 14 (permalink) Old Jan 19th, 17, 12:52 PM Thread Starter
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Ryan
 
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Any luck with stock manifolds and Holley 12618HKR swap mounts??

Hi guys,

I'm doing an LS swap on a 1968 Camaro, and was hoping to get away without buying the headers yet. Any one have any luck fitting any stock manifolds around the steering box? I have a set of 00-02 fbody manifolds with the O2 bung shaved, and I only have about 1/8" clearance. Too close to run it that way. I found a picture a while back of someone using an Alpha H3 Driver's manifold that looked like it may fit without modifications.

Thanks,
Ryan

Project: 1968 Camaro 5.3, T56, Z51 brakes, 12 bolt, etc.


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post #2 of 14 (permalink) Old Jan 19th, 17, 02:45 PM
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Re: Any luck with stock manifolds and Holley 12618HKR swap mounts??

Quote:
Originally Posted by ryeguy2006a View Post
Hi guys,

I'm doing an LS swap on a 1968 Camaro, and was hoping to get away without buying the headers yet. Any one have any luck fitting any stock manifolds around the steering box? I have a set of 00-02 fbody manifolds with the O2 bung shaved, and I only have about 1/8" clearance. Too close to run it that way. I found a picture a while back of someone using an Alpha H3 Driver's manifold that looked like it may fit without modifications.

Thanks,
Ryan
A 600 steering box will buy you some room.

Don

1969 Camaro LSA 6L90E AME subframe and IRS
1969 Camaro vert LS3 4L65E Ridetech level 2 - sold
1959 El Camino project
1969 Mustang Sportsroof project
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post #3 of 14 (permalink) Old Jan 19th, 17, 03:23 PM Thread Starter
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Ryan
 
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I already upgraded to the Jeep Grand Cherokee box for the LS swap, but are any of the 600 boxes metric and quick ratio?
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post #4 of 14 (permalink) Old Jan 19th, 17, 03:31 PM
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Don
 
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Re: Any luck with stock manifolds and Holley 12618HKR swap mounts??

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Originally Posted by ryeguy2006a View Post
I already upgraded to the Jeep Grand Cherokee box for the LS swap, but are any of the 600 boxes metric and quick ratio?
Not sure about the threads. Turn-One has them but they are not inexpensive. Quick ratio with rack and pinion valving. They might be in stock at DSE too.

Don

1969 Camaro LSA 6L90E AME subframe and IRS
1969 Camaro vert LS3 4L65E Ridetech level 2 - sold
1959 El Camino project
1969 Mustang Sportsroof project
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1956 Cameo project - C5 drivetrain
1957 Buick Caballero project
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post #5 of 14 (permalink) Old Jan 20th, 17, 05:12 AM Thread Starter
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Ryan
 
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Re: Any luck with stock manifolds and Holley 12618HKR swap mounts??

Thanks Don. I will take a look at them.

Project: 1968 Camaro 5.3, T56, Z51 brakes, 12 bolt, etc.


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post #6 of 14 (permalink) Old Jan 21st, 17, 11:38 AM
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Anne
 
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Re: Any luck with stock manifolds and Holley 12618HKR swap mounts??

Have you checked with anyone on LS1tech about using LS3 vette manifolds ?

They are on ebay fairly cheap.

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post #7 of 14 (permalink) Old Jan 23rd, 17, 10:56 AM Thread Starter
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Re: Any luck with stock manifolds and Holley 12618HKR swap mounts??

Lawrence454, Yes I failed to mention that I tried a set of LS3 manifolds off of a crate motor that a buddy had. Unfortunately they fit worse than the LS1 manifolds I have.

Project: 1968 Camaro 5.3, T56, Z51 brakes, 12 bolt, etc.


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post #8 of 14 (permalink) Old Jan 23rd, 17, 11:38 AM
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Re: Any luck with stock manifolds and Holley 12618HKR swap mounts??

Quote:
Originally Posted by ryeguy2006a View Post
Lawrence454, Yes I failed to mention that I tried a set of LS3 manifolds off of a crate motor that a buddy had. Unfortunately they fit worse than the LS1 manifolds I have.
Truck manifold fit fine if you turn them around, flip them upside down, and add a hair dryer...

My Mistress rebuild...
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post #9 of 14 (permalink) Old Jan 23rd, 17, 11:54 AM Thread Starter
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Re: Any luck with stock manifolds and Holley 12618HKR swap mounts??

Yes Sir! Unfortunately, I want to get paint first.

Project: 1968 Camaro 5.3, T56, Z51 brakes, 12 bolt, etc.


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post #10 of 14 (permalink) Old Jan 30th, 17, 12:25 PM
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Re: Any luck with stock manifolds and Holley 12618HKR swap mounts??

I tried a LS4 manifold... It doesn't work either. I have a trail blazer manifold, it's the same as a truck(unless it was swapped at the salvage yard).

My Mistress rebuild...
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Last edited by zboss86; Jan 30th, 17 at 12:30 PM. Reason: I see you already noted using a vette manifold
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post #11 of 14 (permalink) Old Jan 31st, 17, 05:06 AM Thread Starter
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Re: Any luck with stock manifolds and Holley 12618HKR swap mounts??

I think what I am going to do zboss, is similar to what you did on your truck manifold and notch the fbody manifold I have. I think right now it makes the most sense.

Project: 1968 Camaro 5.3, T56, Z51 brakes, 12 bolt, etc.


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post #12 of 14 (permalink) Old Jan 31st, 17, 05:42 AM
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Re: Any luck with stock manifolds and Holley 12618HKR swap mounts??

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Originally Posted by ryeguy2006a View Post
I think what I am going to do zboss, is similar to what you did on your truck manifold and notch the fbody manifold I have. I think right now it makes the most sense.
I stand corrected on the trailblazer manifold. The trailblazer engine I got from the salvage yard had truck manifolds on it. My buddy was swapping out a trail blazer engine at his shop and I stole his extra manifolds. The tubes are smaller and more important, they hug closer to the block. You can see below the small window I've cut into the manifold to make it work. If you had a smaller power steering box, it wouldn't have needed the window cut. I also cut the triangle collector off the bottom.



Below is a plethora of manifolds I've tried... Vette manifold, truck manifold,LS4 manifold, I didn't have any camaro manifolds to try.

My Mistress rebuild...
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post #13 of 14 (permalink) Old Jan 31st, 17, 05:56 AM Thread Starter
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Re: Any luck with stock manifolds and Holley 12618HKR swap mounts??

The only other manifold that I have found that is almost a unicorn is the Alpha H3 manifold left/driver's side (P/N 12598548). It's hard to find pictures of it, but I think if I could find one it would work.

If anyone here happens to have one and would like to sell or ship it to me for a trial I would greatly appreciate it!
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Project: 1968 Camaro 5.3, T56, Z51 brakes, 12 bolt, etc.


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post #14 of 14 (permalink) Old Jan 31st, 17, 05:57 AM Thread Starter
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Re: Any luck with stock manifolds and Holley 12618HKR swap mounts??

Not my picture, but I found this online. Here is a guy too who has an LS motor in a '57 Bel Air that has the steering box in a similar position.

H3 Manifolds? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Project: 1968 Camaro 5.3, T56, Z51 brakes, 12 bolt, etc.


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