Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

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mgb260
Jim Nichols
Sequim,WA
(2462 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: Willpower Intake Mainfold for Buick 300
Posted by: mgb260
Date: March 31, 2022 09:20PM

Chad the Willpower doesn't stick down below the flange like the stock intake. It looks like the sealing flanges are about a 1/4" below the flange. Here is a pic of the Huffaker intake on a plate:
Huffaker_3.jpg



Edited 1 time(s). Last edit at 03/31/2022 09:29PM by mgb260.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6469 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Willpower Intake Mainfold for Buick 300
Posted by: BlownMGB-V8
Date: April 01, 2022 09:41AM

The plate should be no less than 1/8" thick and being cast probably at least 3/16" to avoid casting flaws and possible leakage. Thicker at the block flanges of course. I think it would be a pretty good idea to include a small flange that drops down inside the lifter valley along the front and back of the block but of course it would make production machining of those places a bit more work to set up. I expect as much as a 1/16" gap on each one would accommodate variations in the block casting. (allow shifting of the intake fore/aft by as much as 1/8") This flange or shoulder would help retain the OEM seal and make sure it didn't drop inside during assembly. It's true that the seal has lips on it for this purpose but it would just make for a nicer fit up and a more positive seal.

Jim


MGBV8
Carl Floyd
Kingsport, TN
(4512 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

authors avatar
Re: Willpower Intake Mainfold for Buick 300
Posted by: MGBV8
Date: April 01, 2022 04:12PM

Does anyone still use a rubber seal in the front/rear?


mgb260
Jim Nichols
Sequim,WA
(2462 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: Willpower Intake Mainfold for Buick 300
Posted by: mgb260
Date: April 07, 2022 10:57AM

Underside view of Wildcat intake which is made by Willpower. Looks like a 5/16" plate from flange to flange would be perfect.
IMG_1176.jpg



Edited 1 time(s). Last edit at 04/07/2022 10:57AM by mgb260.


BriansMGBV8
Brian Macmillan
Seattle
(61 posts)

Registered:
09/26/2008 12:39PM

Main British Car:
72 MGB Roadster Rover 4L

Re: Willpower Intake Mainfold for Buick 300
Posted by: BriansMGBV8
Date: April 14, 2022 03:27PM

Wanted to update and submit for future reference on how we got here. Without a block Anthony is guessing on the valley plate dimensions but we came up with some good measurement values and hopefully this will be enough to fabricate the valley plate. Some pics. This engine still used a valley seal though rtv will need to be used with new manifold. There is only about 1/8 gap between bottom of manifold and valley wall. Anthony wanted measurements from the intake edge to valley plate.
FDD9BC80-ECF3-4958-ABCA-6C5055FB1737.jpeg
9A19EF2C-044A-4FAB-A417-2A75BB9469C3.jpeg

C84C2654-21DF-4262-851D-E53EFE02D271.jpeg
C31735D3-7F82-4D3B-9DC4-B3D4AF04BCA4.jpeg


BriansMGBV8
Brian Macmillan
Seattle
(61 posts)

Registered:
09/26/2008 12:39PM

Main British Car:
72 MGB Roadster Rover 4L

Re: Willpower Intake Mainfold for Buick 300
Posted by: BriansMGBV8
Date: April 14, 2022 03:27PM

Seal in place.
6EF22663-F90B-4D17-A4AE-ADBCEB9E7640.jpeg


BriansMGBV8
Brian Macmillan
Seattle
(61 posts)

Registered:
09/26/2008 12:39PM

Main British Car:
72 MGB Roadster Rover 4L

Re: Willpower Intake Mainfold for Buick 300
Posted by: BriansMGBV8
Date: November 16, 2022 02:32PM

Update:

It's been a long journey to get this intake created but I think we're there. Anthony has made 2 Willpower intakes that will fit the Buick 300, one is being shipped to me for a trial fit and test and the other is a mold for his records if someone wants to order in the future. This manifold has an integrated valley plate that took some time to create. I'll send pics when received.

As a note, after verifying fit on my block I'd like to send to Dan Jones for some testing to get flow numbers so folks can compare numbers when intake shoppiing.



mgb260
Jim Nichols
Sequim,WA
(2462 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: Willpower Intake Mainfold for Buick 300
Posted by: mgb260
Date: November 16, 2022 02:43PM

Brian, Congrats! I was wondering how you were doing!


MGBV8
Carl Floyd
Kingsport, TN
(4512 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

authors avatar
Re: Willpower Intake Mainfold for Buick 300
Posted by: MGBV8
Date: November 16, 2022 03:43PM

Great news!


Airwreckc
Eric Cumming
RTP, North Carolina
(247 posts)

Registered:
05/28/2020 10:10AM

Main British Car:
1972 MGB-GT (working on a Sebring project) Buick 300-4 V8

Re: Willpower Intake Mainfold for Buick 300
Posted by: Airwreckc
Date: November 16, 2022 05:47PM

Hi Brian, congrats on getting this done! Any idea how much this manifold will cost? And I'm curious how the height compares to the stock 4BBL manifold?


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6469 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Willpower Intake Mainfold for Buick 300
Posted by: BlownMGB-V8
Date: November 17, 2022 10:06AM

Excellent!
Now all we need is an affordable forged crank. (and stroker version)

Jim


BriansMGBV8
Brian Macmillan
Seattle
(61 posts)

Registered:
09/26/2008 12:39PM

Main British Car:
72 MGB Roadster Rover 4L

Re: Willpower Intake Mainfold for Buick 300
Posted by: BriansMGBV8
Date: November 17, 2022 03:54PM

I'm not sure on the cost of the manifold, I'll ask Anthony if he has a price in mind. He did not charge me for the manifold created other than shipping costs. I shipped a manifold there and I'll pay to ship back the original 4 barrel 300 and the new Willpower. This was a joint effort so we basically shared the costs. If the final fit, height and flow numbers are reasonable then there will a nice 2nd option for a 300 build.

I don't believe this manifold will sit any higher than the Wildcat/Willpower for the Buick 215/Rover, depends on the final valley plate measurements.


Airwreckc
Eric Cumming
RTP, North Carolina
(247 posts)

Registered:
05/28/2020 10:10AM

Main British Car:
1972 MGB-GT (working on a Sebring project) Buick 300-4 V8

Re: Willpower Intake Mainfold for Buick 300
Posted by: Airwreckc
Date: November 17, 2022 05:10PM

Thanks Brian, I'd appreciate you asking. And I assume this requires use of the Wildcat heads (and wouldn't work with any other heads?)? Or maybe more to the point--what heads *will* it work with? I'm just now trying to decide which way to go (300 heads, Wildcat heads, TA heads or Rover 4.6 are all under consideration).

Thanks again,
Eric



Edited 1 time(s). Last edit at 11/17/2022 05:36PM by Airwreckc.


mgb260
Jim Nichols
Sequim,WA
(2462 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: Willpower Intake Mainfold for Buick 300
Posted by: mgb260
Date: November 17, 2022 06:15PM

Eric, this intake is for Rover and Buick heads. Wildcat is a different intake.


Airwreckc
Eric Cumming
RTP, North Carolina
(247 posts)

Registered:
05/28/2020 10:10AM

Main British Car:
1972 MGB-GT (working on a Sebring project) Buick 300-4 V8

Re: Willpower Intake Mainfold for Buick 300
Posted by: Airwreckc
Date: November 17, 2022 06:47PM

Jim, thanks for the clarification. It's good to know that it will work with any of the options I'm considering.



BriansMGBV8
Brian Macmillan
Seattle
(61 posts)

Registered:
09/26/2008 12:39PM

Main British Car:
72 MGB Roadster Rover 4L

Re: Willpower Intake Mainfold for Buick 300
Posted by: BriansMGBV8
Date: November 21, 2022 06:37PM

Anthony reports that the Willpower intake carb base sits at the nearly the same height as the orginal, or just at 4" or 100MM from valley to carb base. The cost is notset yet as h's waiting to se how my intake fits up.

I'm working with Anthony to ship a block, heads and a 2 barrel intake. He'd like to have the orginals to make fitup and mold creation more straight forward. He's arranged fright shippment from Texas so whenever I can find a block I'll have it delivered to the freight yard fro shipping. If anyone has an bad block they can donate (Texas area) would be great. I'm contacting some of the old wrecking yards in Texas to see if anythings available locally.


Airwreckc
Eric Cumming
RTP, North Carolina
(247 posts)

Registered:
05/28/2020 10:10AM

Main British Car:
1972 MGB-GT (working on a Sebring project) Buick 300-4 V8

Re: Willpower Intake Mainfold for Buick 300
Posted by: Airwreckc
Date: November 22, 2022 07:07AM

Thanks for the update. The height is really good news for a well flowing intake!


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6469 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Willpower Intake Mainfold for Buick 300
Posted by: BlownMGB-V8
Date: November 22, 2022 09:34AM

Might call and see if Obsolete Buick (Dallas area) has a block they could let go of, who knows what they have kicking around. [obsoletebuickparts.com]

Same for TA, they could have an old block scrap block they haven't gotten rid of. Or know where to find one.

Jim


speedybuick
Rob Franklin

(18 posts)

Registered:
12/20/2009 05:57PM

Main British Car:


Re: Willpower Intake Mainfold for Buick 300
Posted by: speedybuick
Date: July 31, 2023 08:28PM

I'm definitely interested in one of these intake manifolds when they become available. I've just started a rather elaborate 300 build that will require something better than stock.

Bob.


ag1234
Arthur Gertz

(66 posts)

Registered:
03/29/2023 08:26PM

Main British Car:


Re: Willpower Intake Mainfold for Buick 300
Posted by: ag1234
Date: August 05, 2023 11:21AM

A breath of fresh air... At risk of pointing obvious, use spacer plates and "anybodys", better RV8 manifold ! Thin aluminum sheet to seal lifter valley to china walls.
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