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Joined: Apr 2016
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M
'Bolter
'Bolter
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Originally Posted by MNSmith
Curious how that would work with 6 separate manifolds.
I'm curious about the valve layout. On my 12 port crossflow head the intake and exhaust valves alternate. Are yours grouped and can you run a stock cam configuration?

Last edited by mick53; 06/07/2023 12:06 AM.

Old enough to know better, too young to resist.
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P
'Bolter
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Guessing by the 2-2-2 intake ports, it uses the original GMC (and stovebolt, and some other older L6 engines) lobe positions. You can use any cam made for the original head, but given the 12 port advantages the available grinds may not be suitable:
Ex - In - In - Ex - Ex - In - In - Ex - Ex - In - In - Ex

Joined: Oct 2005
Posts: 4,257
"Hey! I sound like Darth Vader!!
"Hey! I sound like Darth Vader!!
Joined: Oct 2005
Posts: 4,257
Gonna need to do some hub making!
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IMG_6270.jpeg (235.64 KB, 160 downloads)
IMG_6271.jpeg (226.75 KB, 160 downloads)

Joined: Oct 2005
Posts: 4,257
"Hey! I sound like Darth Vader!!
"Hey! I sound like Darth Vader!!
Joined: Oct 2005
Posts: 4,257
Gonna have to figure out where to hang this and 6 coils. Although the filter can be mounted on the frame somewhere.
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IMG_6272.jpeg (246.29 KB, 152 downloads)
IMG_6273.jpeg (203.06 KB, 151 downloads)

Joined: Jan 2019
Posts: 2,242
Herder of Cats, Goats, and Sheep (moderator)
Herder of Cats, Goats, and Sheep (moderator)
Joined: Jan 2019
Posts: 2,242
You could do the LS thing and mount the coils to the valve cover bolts.

Or potentially move the filter to the frame and build a bracket to go along that side of the engine to hold them below the fuel rail. The early and late (99-02 vs 03-06) Gen III LS engines had different length plug wires so you couod pick the length you liked and use off the shelf parts.

Are you planning to use LS coils or something else?


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"Hey! I sound like Darth Vader!!
"Hey! I sound like Darth Vader!!
Joined: Oct 2005
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I'm probably going with idea #2, bracket on the side under the throttle bodies.

I already have a pair of Holley coils. Might as well get 4 more.

Joined: Jan 2019
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Herder of Cats, Goats, and Sheep (moderator)
Herder of Cats, Goats, and Sheep (moderator)
Joined: Jan 2019
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Something like this (expanded to hold 6 at the right spacing) would liike sharp.
Attachments
615KKaQ0tmL._AC_UF1000,1000_QL80_FMwebp___01.jpg (50.47 KB, 140 downloads)
Billet LS coil mount
BLANK.jpg (227 Bytes, 94 downloads)


Last edited by klhansen; 06/13/2023 3:49 AM. Reason: added a blank photo without caption to fix Mark's subsequent photos

From the Rocky Mountains?
Check in with the RM Bolters!
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1958 Task Force Truck
"Frank" gets a new lease on life
Follow in the DITY Gallery
1959 3200 Task Force
The Ballad of Enkidu
The Saga in the DITY Gallery ~ and the story continues
Joined: Oct 2005
Posts: 4,257
"Hey! I sound like Darth Vader!!
"Hey! I sound like Darth Vader!!
Joined: Oct 2005
Posts: 4,257
Making things.
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IMG_6275.jpeg (150.53 KB, 99 downloads)
IMG_6276.jpeg (181.88 KB, 99 downloads)
IMG_6277.jpeg (216.63 KB, 100 downloads)
IMG_6278.jpeg (160.32 KB, 100 downloads)
IMG_6279.jpeg (239.45 KB, 100 downloads)
IMG_6280.jpeg (258.96 KB, 100 downloads)

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M
'Bolter
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If your like me you really enjoy making stuff. I don't have anything fancy. I bought a medium sized Grizzly mill about 5 years ago and a PM 12x36 lathe a couple of years ago. I don't have any schooling in machining but I take it easy and get by. No major crashes yet. I have been avoiding dealing with my thermostat mounting issue. Thanks for the post.


Old enough to know better, too young to resist.
Joined: Oct 2005
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"Hey! I sound like Darth Vader!!
"Hey! I sound like Darth Vader!!
Joined: Oct 2005
Posts: 4,257
No schooling in this for me, neither. But the more I do, with an attitude of "Why can't I do this stuff!", the more I learn. Which just goes to show, it's never too late! And not just limited to machining. I think I picked up enough supplies to try some more advanced upholstery on my Model A Roadster seat springs. And why not! If some guy in a small shack let's you drop off your springs in the hope that, when you pick them up, they will look like what you envisioned. He might be faster because of a lifetime of experience, but it doesn't mean I can't figure it out and do the same. Everything on our Stovebolts was touched by some human in a factory and turned in to the trucks we love. Ain't nothing mysterious or magical about it. Just some dude (or chick) that did what they were taught to do. And between Youtube and The Stovebolt and other internet information, it's even easier to get that training and build on the pioneers. And if we make a mistake, we start over and try not to repeat that mistake!

Short answer! Yeah, I like making stuff! Best part of the day is when I can say, yeah, I made that! Even if, sometimes, I'm only talking to myself!

Joined: Oct 2005
Posts: 4,257
"Hey! I sound like Darth Vader!!
"Hey! I sound like Darth Vader!!
Joined: Oct 2005
Posts: 4,257
BTW, more stuff. Next up, bolt holes to fasten it all together. The trigger wheel might have to wait until I can get some basic clocking. So, I might start on the sensor bracket.
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IMG_6281.jpeg (282.04 KB, 115 downloads)
IMG_6282.jpeg (246.75 KB, 114 downloads)
IMG_6283.jpeg (162.68 KB, 114 downloads)

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M
'Bolter
'Bolter
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I bought a V pulley with the center I needed and turned it down. I need to be able to change my blower pulley without moving the crank trigger. I'm looking forward to how you mount your sensor.
Attachments
damper adapter 1.jpg (180.64 KB, 94 downloads)
damper adapter 3.jpg (363.29 KB, 94 downloads)
damper adapter 4.jpg (315.37 KB, 94 downloads)


Old enough to know better, too young to resist.
Joined: Oct 2005
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"Hey! I sound like Darth Vader!!
"Hey! I sound like Darth Vader!!
Joined: Oct 2005
Posts: 4,257
The timing cover is one of those racing types that have a removable cover over the cam gear, in case you want to drive, say, a Enderle Nitromethane fuel pump. I plan to use that to my advantage and use the mounting points for a sensor bracket, between/inside the V-belt.

The picture shows a large plate timing cover with a candlestick attached and the Enderle attached after that. I'll get pictures of my stuff later.
Attachments
sng48.jpg (82.06 KB, 85 downloads)

Joined: Oct 2005
Posts: 4,257
"Hey! I sound like Darth Vader!!
"Hey! I sound like Darth Vader!!
Joined: Oct 2005
Posts: 4,257
Somewhere in the middle there.
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IMG_6292.jpeg (213.59 KB, 66 downloads)
IMG_6293.jpeg (195.12 KB, 66 downloads)
IMG_6294.jpeg (224.69 KB, 66 downloads)

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M
'Bolter
'Bolter
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I didn't think about mounting it on the cover. That would keep it away from my 250 amp alternator. I'll have to see how that works with my dry sump pump on that side. Thanks for a new perspective.


Old enough to know better, too young to resist.
Joined: Oct 2005
Posts: 4,257
"Hey! I sound like Darth Vader!!
"Hey! I sound like Darth Vader!!
Joined: Oct 2005
Posts: 4,257
Not much happening. Been collection stuff to plumb the remote filter. Waiting for a pair of pushrods to show up.

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