[steve25]

What is your meaning by this last paragraph you posted?

[djustice]

The Financial ruin? Just my way of saying major investment in engine related parts.

[Steve C.]

The Hurricane will fit under a Formula hood. The ports can go about 2.300" tall with about 0.125" above for gasket seal.

https://butlerperformance.com/i-2445...tegory:1234847


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[djustice]

That is the intake they offered as a replacement, but it does not have enough material , Quote from butler: "We can do a 285-290 cfm hand ported version where we don’t raise the intake roof"
I guess they dont want to take a chance leaving parts of the intake too thin.

[tom s]

The roof is where the flo in the intake is at!Tom

[Steve C.]

Apparently Butler needs a tall gasket, listed here:

Pontiac Intake Gaskets - Large Port 1.18 X 2.35 (SET) Butler recommends these gaskets on Edelbrock 315-325cfm Ported Heads
Item #: SPM-5410PS-2

On my Edelbrock heads I use the SCE 128103 intake gasket that has a actual port opening about 2.320" tall ( despite what their catalog states ).
All my heads have a 2.300" tall port.
One set went 329 cfm on my engine builders bench. Which doesn't mean much because different flow benches will vary.


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[Steve C.]

In contrast Dave Bisschop uses the popular FelPro 1233 intake gasket on his Edelbrock 315 cfm heads:

http://www.sdperformance.com/viewPro...p?productID=37

"Intake Port entrance is matched to RAIV/Felpro 1233 size making them an excellent choice for customers wanting to retain their factory Ram Air system or shaker scoop using one of our OEM modified cast iron or aluminum intakes."

The 1233 gasket port opening is about 2.200" tall.
Again, I've opened up the Tomahawk intake to about 2.300" tall with about 0.125" above the gasket for seal. In addition the runners were blended considerably. It has the capability to support well over 600 HP.

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[djustice]

Thank you for the info, as it is now i will try to wait it out a few months and see if the Torker II wil be restocked, leed time for a ported topend kit is 12-14 weeks, and the car is in storage til May 2022 so no imidiate rush.
I do not feel comfortable telling Butler that they have the wrong gasket for raising the intakeport on their Hurricane Intake Manifold.

After a little bit of digging the source for the shortage seems to be both a lack of aluminium supply and that some local Foundry(s) have run on a 25% staff during the pandemic, acording to forum posts on various forums.

[Skip Fix]

Hurricane looks like the old Tomahawk. Would not seal on a SD 310-320 cfm E head without weld but the old original Holley Street Dominator will. Torker 2 will seal if no larger than the blue sealant line on the FelPro 1233 gasket, taller need weld at the top. Easy enough to have weld added and remill the surface.

[Skip Fix]

No welded Torker II Max.
The EFI Torker is a little different also.

[djustice]

Thank you for posting those pictures, Easier to understand just how much is removed when you can see it compared to the gasket. i have an new in packaging Felpro 1233 laying around.

[Formulabruce]

Better be SURE you have ALL the parts before you tear down... I dont mean "In stock", I mean IN your hands...

[Steve C.]

OK, some confusion here. The Tomahawk intake manifold design was based on a Holley Street Dominator intake. I've owned both intakes and ported both to about 2.300" tall on their ports. Both used the same SCE 128103 intake gasket, and both had about the same amount of material above the port for gasket seal. You would think BOTH should work with a FelPro 1233 gasket with no issues.

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[djustice]

Originally Posted by Formulabruce

Better be SURE you have ALL the parts before you tear down... I dont mean "In stock", I mean IN your hands...

Absolutley! also living in europe, makes a small part missed on the order a big extra expense in shipping cost of the part, 25% tax on the part and the shipping, makes a small gasket cost $100.

[djustice]

Just payed the butler performance invoice, now the waiting game begins about 16 weeks. It will be a 2-part order anyhow, since i need to get the rigth length oil restricted pushrods, better do measure it accuratley and not wing it with 9.xx something length.
Looking over the parts i start to realize i migth not make the 500 hp mark i kind was thinking about, but i guess it is a lot better to have a well mannerd street car than a compromize car anyway.

For my short block that is in the car i have:
- 455 +0.60 over.
-L-2359 pistons with 6.7 CC valve relief
-1 3/4 full length headers
- full pypes 2.5" mandrelbent exhaust with x-pipe and dual racepro mufflers

On order from butler:
-Edelbrock 87 CC chamber heads + cnc porting to 315+ cfm
-butlers own headgasket
-Edelbrock Torker II + portmatching
- CCA-BP8022SP Butler Comp SP Street Performance Billet Roller Cam (HR) 3315-3316-HR11 282/288, 230/236, .510/.521, 112LS (StdFiring Order/ Std Journals)
-JLI-2112OPR-16 Johnson Lifters, Pontiac Lifter Set, Hi-Perf Hydraulic Roller, 326-455, Set/16 <-- needs oilrestricted pushrods.
+ misc, polymer dist. gear, gaskets ,degree kit, valleypan etc.

I migth be worng, but that setup with that cam will probably net me in the 450-480 hp range on the flywheel.
And i do not plan on spinning the motor higher than about 5500 rpm, current revlimiter is set at 5200 rpm.

[chuckies76ta]

CCA-BP8022SP Butler Comp SP Street Performance Billet Roller Cam (HR) 3315-3316-HR11 282/288, 230/236, .510/.521, 112LS (StdFiring Order/ Std Journals

Is that not a bit small on the cam with those E-Heads at 315 cfm.? I would have a least went with Old Faithful. 236/245.http://www.sdperformance.com/listPro...p?categoryID=2
You should be able to hit 600 hp with those heads. 1.3/4 to 1/7/8 headers. 3" exhaust.

[djustice]

That was my initial tougth too, but i guess i raise the whole powerband if i choose a cam with more duration, and migth end up closer to the 6000 rpm mark, making the top end power not so usable in a street car scenario.

[chuckies76ta]

I have 590 hp and 600 torque in a street Trans am and I run KRE d port heads with 1-3/4 headers, 3" exhaust. 5 speed TKO-600 and the 246/252 cam from Dave. It's a blast. I spin it to 6000 no problem at times. But I run the Solid Crower lifters on a Hydraulic cam. It has tons of torque down low.

I'm not knocking your setup at all, just thinking your leaving lots on the table with those heads. It still will be a fun street car. Other on the board have lots of experience and will sure to chime in..

[djustice]

That sounds awsome! do you mind if i ask what kind of idle vaccum you have and at what idle rpm?

[chuckies76ta]

It's been a long time since I checked it but I'm thinking it was around 12" vacuum at around 900 rpm. roughly. I also run a 950 Quickfuel on the car. Also, I run a hydraboost braking system, so no need for high vacuum with a brake booster.
You should have pretty good vacuum with that cam.