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W7, 8, and 9 Intake Manifolds

Posted By: Hot 340

W7, 8, and 9 Intake Manifolds - 07/17/11 06:35 PM

What are the differences of each? I see the 598, 598AB, 420, 772 ect.. I know some are low deck and some are for standard decks, but beside that? Are they all equal? I know the 420 is the big player in power but are there better choices for different applications?
Posted By: MR_P_BODY

Re: W7, 8, and 9 Intake Manifolds - 07/17/11 06:42 PM

I use the 420 that I milled to fit a 1050 dom... I
havent looked at the other but I would assume the plenum
size is different as well as the deck heights
Posted By: Leon441

Re: W7, 8, and 9 Intake Manifolds - 07/18/11 12:12 AM

772 is for a tall deck. I have one but it was mistakenly milled wrong and when it got corrected guess what. It now fits a short deck block.

I also have a 598 and a 420. The 420 is the baddest of them all as you can make it much larger inside.

Leon
Posted By: Hot 340

Re: W7, 8, and 9 Intake Manifolds - 07/18/11 01:30 PM

Thanks guys. So were some designed for nascar and others for drag racing? The overall design looks to be the same.
Posted By: MR_P_BODY

Re: W7, 8, and 9 Intake Manifolds - 07/18/11 01:39 PM

Quote:

Thanks guys. So were some designed for nascar and others for drag racing? The overall design looks to be the same.



I believe the 420 was for nascar... its only made
for a 4150 carb
Posted By: lowbudget

Re: W7, 8, and 9 Intake Manifolds - 07/18/11 05:21 PM

I believe the 420 was for nascar... its only made
for a 4150 carb




yeah all the drag manifolds were sheetmetal twin carbs
Posted By: W5DART66

Re: W7, 8, and 9 Intake Manifolds - 07/18/11 07:06 PM

"420" was dragrace only as NASCRAP did not like the way the "420" looked so it was never run in the trucks. "598" and "598AB" was the nascar intake.
Posted By: sixpackgut

Re: W7, 8, and 9 Intake Manifolds - 07/18/11 07:11 PM

I would like to see pics of these intakes. i have an obsession
Posted By: lowbudget

Re: W7, 8, and 9 Intake Manifolds - 07/18/11 08:05 PM

Quote:

"420" was dragrace only as NASCRAP did not like the way the "420" looked so it was never run in the trucks. "598" and "598AB" was the nascar intake.



Interesting, never heard that before and thanks for the info
Posted By: theclutcher

Re: W7, 8, and 9 Intake Manifolds - 07/19/11 04:13 AM

Quote:

I would like to see pics of these intakes. i have an obsession



Here is a 420... repro from Kent Ritter.

Attached picture 6736114-R3W8010(Small).jpg
Posted By: theclutcher

Re: W7, 8, and 9 Intake Manifolds - 07/19/11 04:16 AM

another...

Attached picture 6736123-R3W8009(Small).jpg
Posted By: SB412DUSTER

Re: W7, 8, and 9 Intake Manifolds - 07/19/11 04:21 AM

Here's the inside of a 598

Attached picture 6736132-IMG_1251.JPG
Posted By: SB412DUSTER

Re: W7, 8, and 9 Intake Manifolds - 07/19/11 04:22 AM

And here's the inside of a 598 AB that I made fit a Chevy

Attached picture 6736136-IMG_1250.JPG
Posted By: theclutcher

Re: W7, 8, and 9 Intake Manifolds - 07/19/11 04:28 AM

cool pics, wanted to see them myself.
420, same view.

Attached picture 6736148-R3W8006(Small).jpg
Posted By: S/ST 3040

Re: W7, 8, and 9 Intake Manifolds - 07/19/11 09:50 AM

Kent also has them available with the carburator pad rough machined for 4500.

Attached picture 6736435-XRBlockand420Intakes006.jpg
Posted By: S/ST 3040

Re: W7, 8, and 9 Intake Manifolds - 07/19/11 09:51 AM

Straight down.

Attached picture 6736436-XRBlockand420Intakes007.jpg
Posted By: theclutcher

Re: W7, 8, and 9 Intake Manifolds - 07/19/11 12:18 PM

Hey Vic!
That sure saves a lot of carving...
any pics how you finished that one?
Posted By: S/ST 3040

Re: W7, 8, and 9 Intake Manifolds - 07/19/11 01:37 PM

I took those pictures on Kent's table at the Indy show.

I haven't started on Jeff's 420 yet.

Brett probably has some ported 420 pictures?
Posted By: MR_P_BODY

Re: W7, 8, and 9 Intake Manifolds - 07/19/11 02:03 PM

Heres a pic of one of the first 598s that was rough
cast that I machined to fit a 4500 and doing the port
work... its done now but I still havent run it yet
to make sure of the port balance using EGTs


Attached picture 6736561-Intake1sml.JPG
Posted By: Plumb Wired

Re: W7, 8, and 9 Intake Manifolds - 07/19/11 02:28 PM

Wilson ported 598

Attached picture 6736580-'598WILSONINTAKE.JPG
Posted By: Plumb Wired

Re: W7, 8, and 9 Intake Manifolds - 07/19/11 02:29 PM

Chapman ported 598

Attached picture 6736581-'598CHAPMANINTAKE.JPG
Posted By: Plumb Wired

Re: W7, 8, and 9 Intake Manifolds - 07/19/11 02:31 PM

420 ported by Matt Hensley, Applied Nitrous Technologies fogger, 4150 to 4500 adapter blended

Attached picture 6736582-'420FoggerIntake(Prock).JPG
Posted By: Plumb Wired

Re: W7, 8, and 9 Intake Manifolds - 07/19/11 02:34 PM

598 w/ Monte Smith fogger

Attached picture 6736587-'598FoggerIntake(Smith)#1.jpg
Posted By: Plumb Wired

Re: W7, 8, and 9 Intake Manifolds - 07/19/11 02:35 PM

Kent Ritter 420 repop

Attached picture 6736588-'420NewCasting.JPG
Posted By: emarine01

Re: W7, 8, and 9 Intake Manifolds - 07/20/11 12:02 AM

Quote:

Heres a pic of one of the first 598s that was rough
cast that I machined to fit a 4500 and doing the port
work... its done now but I still havent run it yet
to make sure of the port balance using EGTs


Man Mike... Did you split another one or is that the same one from a wile back
Posted By: MR_P_BODY

Re: W7, 8, and 9 Intake Manifolds - 07/20/11 12:16 AM

Quote:

Quote:

Heres a pic of one of the first 598s that was rough
cast that I machined to fit a 4500 and doing the port
work... its done now but I still havent run it yet
to make sure of the port balance using EGTs


Man Mike... Did you split another one or is that the same one from a wile back



Same one... that was the last of my W manifolds...
that one and my 420 is all I own
Posted By: theclutcher

Re: W7, 8, and 9 Intake Manifolds - 07/20/11 12:49 AM

Lots of great pics.
Thanks all!
Wonder about all the hrs to finish one.
Saw another Wilson int a while back, just beautiful pcs.
Posted By: sixpackgut

Re: W7, 8, and 9 Intake Manifolds - 07/20/11 02:02 AM

so which intake works better?
Posted By: MR_P_BODY

Re: W7, 8, and 9 Intake Manifolds - 07/20/11 02:04 AM

420
Posted By: Leon441

Re: W7, 8, and 9 Intake Manifolds - 07/20/11 03:11 AM

Seems to be a lot of material left in the intakes pictured.

My 420 does not have much work. I was told by the big NA guys I would be down 50 HP due to how much material is still in my 420. My plenum is quite a bit larger than the ones pictured. The runners are basically as cast with the exception of port matching and blending well up the runners.

It's too hot and I am too lazy to take some pics. Probably should sense they are for sale. But, someone will copy my unskilled work. LOL
The 598 I have was done by a local professional and looks really nice in the plenum but runs abouts the same as the others. At least one would not have to weld over any overcuts.

Leon
Posted By: MR_P_BODY

Re: W7, 8, and 9 Intake Manifolds - 07/20/11 03:18 AM

My factory 420 doesnt look at all like the Ritter
420 repop
Posted By: theclutcher

Re: W7, 8, and 9 Intake Manifolds - 07/20/11 05:21 AM

Where are the differences?
Divider length thickness or plenum vol?
On the fence as to using a carb adapter for dominator or carving intake.
With adapter, can at least go back to smaller carb if needed.
Also like idea of splitting the manifold, cant recall who does that.
Posted By: MR_P_BODY

Re: W7, 8, and 9 Intake Manifolds - 07/20/11 01:23 PM

Quote:

Where are the differences?
Divider length thickness or plenum vol?
On the fence as to using a carb adapter for dominator or carving intake.
With adapter, can at least go back to smaller carb if needed.
Also like idea of splitting the manifold, cant recall who does that.



Just looking down the plenum its different... I think
its the dividers... I'll have to look later today
Posted By: Hot 340

Re: W7, 8, and 9 Intake Manifolds - 07/21/11 12:40 AM

Great info and pics. So what changed in the 598 to the 598 AB? Rules revision maybe? The AB definetly looks bigger.
Posted By: S/ST 3040

Re: W7, 8, and 9 Intake Manifolds - 07/21/11 01:00 AM

That was the revision.
Posted By: Hot 340

Re: W7, 8, and 9 Intake Manifolds - 07/21/11 01:29 AM

Quote:

That was the revision.

I know the AB was a revision, but exactly what changed? Is there a story there?
Posted By: S/ST 3040

Re: W7, 8, and 9 Intake Manifolds - 07/21/11 01:35 AM

It was the same "design" just the AB version was cast so
they didn't require so much work to port.

The runners are bigger in the 598AB.

Attached picture 6739218-P4532598ABIntake005.jpg
Posted By: S/ST 3040

Re: W7, 8, and 9 Intake Manifolds - 07/21/11 01:37 AM

2

Attached picture 6739222-P4532598ABIntake009.jpg
Posted By: S/ST 3040

Re: W7, 8, and 9 Intake Manifolds - 07/21/11 01:39 AM

3

Attached picture 6739225-P4532598ABIntake006.jpg
Posted By: S/ST 3040

Re: W7, 8, and 9 Intake Manifolds - 07/21/11 01:40 AM

Last one.

Attached picture 6739227-P4532598ABIntake004.jpg
Posted By: Hot 340

Re: W7, 8, and 9 Intake Manifolds - 07/23/11 07:17 PM

Quote:

Last one.

Thanks for the pics guys.
Posted By: Hot 340

Re: W7, 8, and 9 Intake Manifolds - 11/23/11 11:57 PM

Gonna bring this one back up. . when machining the top from a 4150 to a dominator flange does the "cloverleaf" style opening work better than the plain, square dominator sized opening?
Posted By: 1967dartgt

Re: W7, 8, and 9 Intake Manifolds - 11/24/11 02:42 AM

I think it is different depending on the intake. Like a 772 is cloverleaf as a 420 would be square. Don't know for sure.
Posted By: Leon441

Re: W7, 8, and 9 Intake Manifolds - 11/24/11 02:44 PM

Quote:

I think it is different depending on the intake. Like a 772 is cloverleaf as a 420 would be square. Don't know for sure.



UNC OUgh

The version you go with depends on what you prefer with your combo. Some intakes have less meat to mill out and end up very narrow on the sealing surface. My 772 is very thin with an open plenum. But, 468 CID with a good dose on a plate system will not want a cloverleaf. If the thin gasket area scares you one can always build the outer flange up with alluminum. I had no issues and was faced with a no external welding rule in the class. I tried cloverleafs but did not like with my combos.
Posted By: Hot 340

Re: W7, 8, and 9 Intake Manifolds - 11/26/11 03:16 AM

Quote:

Quote:

I think it is different depending on the intake. Like a 772 is cloverleaf as a 420 would be square. Don't know for sure.



UNC OUgh

The version you go with depends on what you prefer with your combo. Some intakes have less meat to mill out and end up very narrow on the sealing surface. My 772 is very thin with an open plenum. But, 468 CID with a good dose on a plate system will not want a cloverleaf. If the thin gasket area scares you one can always build the outer flange up with alluminum. I had no issues and was faced with a no external welding rule in the class. I tried cloverleafs but did not like with my combos.

Thanks fellas..So what exactly does the cloverleaf do? Is it better for smaller cube combos?
Posted By: Leon441

Re: W7, 8, and 9 Intake Manifolds - 11/27/11 03:28 AM

I'm reaching here but a couple things come to mind. The plenum would be a little smaller. You would boost signal to the carb sort of like the trick spacers. Personally I had to run a large spacer so the cloverleaf was pointless.

Leon
Posted By: Otherlane

Re: W7, 8, and 9 Intake Manifolds - 12/13/11 10:38 PM

What's the cost on the Ritter made intake? Is there a big difference in the 772 intake vs the 420?
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