Help with new Heads and Intake

[YourBuddy'sTruck]

Hello, Everyone.
I'm reposting a new thread for this as the last one was made in haste without all the information.

My Dad has a 72 with a 350 and Automatic.
Driver's side head had a crack, so he called Summit.
They talk him into the Heads in the photos. They are described as....
S/S 64cc Chamber 185cc Intake Runner Straight Plug. (whatever that all is?)
They look great and should be pretty sweet, but they have a different angle, so a stock intake is too narrow.
So he calls Summit again, and they talk him into a 2V Sportsman Victor from Edelbrock.
Now this thing looks like art, but why did they talk him into a High Rise Intake?
Let's add to this, the carb is a re-man Rochester 2Jet.

Can you help me with any info or torque specs?
And the hole in the Head for the Temp Sensor is different? Larger Diameter? What Sensor fits that hole?
Will these 3 parts chime together?
I see no Vacuum Ports on the Intake? Or are the large threaded holes in the rear the ports?
Can we pull Vacuum lines from the Carb? Large Port at the base for Tranny and Brakes?
The Gaskets are a lot thicker than what I'm used to seeing, but they get the Intake above the lip in the Heads up by the valve covers.
The instructions call for gasket sealer around the water jets only? Is this what you do?
Seems to me that the intake only has pairs of bolts in the four corners with none in the center? Makes me think of sealer everywhere!
In the previous thread, someone notced the Rockers look too tight. I'll double check my Dad followed the propper sequence before going forwards.

Thanks in advance for any input. I'm in over my head with the fancy modern parts and would love to learn more.
Cheers!

[YourBuddy'sTruck]

Pic of the Heads.....

[Warrens69GMC]

That is a single plane, do not put that on the truck.

He needs this:
www.summitracing.com/parts/pfs-52007/overview/

[YourBuddy'sTruck]

Originally Posted by Warrens69GMC

That is a single plane, do not put that on the truck.

He needs this:
www.summitracing.com/parts/pfs-52007/overview/

Thanks for the reply, but can you further explain this?
And the link is to an Intake for a 4 Barrel.
My Dad has a 2 Barrel Rochester.

[AnotherWs6]

Let's back up here a second. What heads are those first all? I'm a little spooked that the stock intake doesn't fit.

What cam is he running?

Does he intend to race this thing or is it a normal, every day capable truck?

That intake is a really high RPM intake. The fact that you guys tried to put the stock one back on makes me think this is a basically stock motor.

You are going to be extremely limited with intake manifolds if you're sticking with the 2 barrel carb. So if you need a good dual plane, low rise intake (which I suspect you do) you could go with something like what was mentioned by Warrens69 and use an adpater plate.

https://www.summitracing.com/parts/sum-g1406/overview/

[rcazwillis]

What part number is on the invoice for the heads? That will help determine what head you have. I see picks of vortec heads with the two holes by the cross over and I see picks wihtout the 'bolt holes.'

The intake is a single plane manifold. It will make power in the upper RPM range. A dual plane intake will make power in the lower rpm range. Google will help you better understand. Based on this thread and the other thread, you are building a daily driver, not a hot rod. That motor does not need a single plane intake.

[MikeB]

Edited after I looked harder at the pictures!

The high rise manifold you bought is designed to fit GM Vortec heads used in 96-up 5.7 liter truck engines. But I see where the heads are drilled with 8 vertical bolt holes as well as 12 angled holes, so Vortec as well as conventional manifolds should fit. But no way should you expect that dirt track manifold to work well on the street.

A conventional intake manifold should fit the heads in the picture UNLESS the manifolds's center two bolt holes on both sides are at a different angle than the holes on the heads. In which case you bought the wrong heads.

Show us pictures of your old manifold and heads where we can see the bolt hole angles.

[YourBuddy'sTruck]

Thanks, fellas.
I'm posting this on my Dad's behalf with information he sent to me.
I'm eating lunch, then headed over to his place for more informationa and pics.
The Stock Intake will not fit as it is too narrow. (this was new for me?)
The heads have a different angle where they contact the Intake. (also new for me?)
My Dad certainly does not intend to race this truck. He's a Harley and a Trike, the truck is for hauling sheets of plywood and when the roads ice up.
More info soon...and thanks again.

[YourBuddy'sTruck]

Heads part # on invoice is PMX-2151.
Cast # inside of head is 16485906.
The intake doesn't even line up with a 2jet carb, so that's probably out of here.
Can you tell me what intake will work with these heads and that 2jet carb?
Seems like you guys know Summit's catalogue better than they do?
The guys on the phone are taking my dad for a bit of a ride??
Here's a pic of the original intake sitting in there. Obviously not a good fit?

[YourBuddy'sTruck]

PS. He has not adjusted the Rockers yet. He only snugged them up while tinkering.
Thanks for noticing! You guys got Eagle Eyes!

[57Suburb]

you have the Promaxx version of Vortec heads, so you need an intake designed for Vortec heads. You're going to have a hard time finding one that will work in a stock configuration. The one they sent you is all they have in the catalog.

[57Suburb]

You're going to have to consider going 4 barrel, or send the heads back for a set of conventional Chevy heads.

[YourBuddy'sTruck]

Thanks again. I'll pass this on the my Dad. This isn't good, but we'll get it straight with Summit.

[demian5]

Get the right heads. unless you are building something special and wanted these specific heads.

[geezer#99]

Cut your losses!
Send those heads and intake back to summit and get some stock ones.
Like here.
http://www.aeroheadracing.com/chevy.html

[YourBuddy'sTruck]

From the photos, you can tell that my Dad already painted and installed the Heads.
Is there a problem with these heads? Would you use them if you had them?
The money is already spent. The intake is simple enough to return. The heads, not so much.
If you had these heads installed on your truck, What Intake would you use?
It is not a problem to get a Quadrajet to put on here.
I'll take any advice you give and pass it on.

(I say, Summit is kind'a disapointed me here? Like when my In'Laws went to Best Buy for an iPad and came home with a MacBook?)

[YourBuddy'sTruck]

Originally Posted by Warrens69GMC

That is a single plane, do not put that on the truck.

He needs this:
www.summitracing.com/parts/pfs-52007/overview/

Now that part looks more familliar than this High Rise thing they sent him!
Thanks!

[YourBuddy'sTruck]

Originally Posted by AnotherWs6

Let's back up here a second. What heads are those first all? I'm a little spooked that the stock intake doesn't fit.

What cam is he running?

Does he intend to race this thing or is it a normal, every day capable truck?

That intake is a really high RPM intake. The fact that you guys tried to put the stock one back on makes me think this is a basically stock motor.

You are going to be extremely limited with intake manifolds if you're sticking with the 2 barrel carb. So if you need a good dual plane, low rise intake (which I suspect you do) you could go with something like what was mentioned by Warrens69 and use an adpater plate.

https://www.summitracing.com/parts/sum-g1406/overview/

Now that is interesting! Never heard of these?
There is nothing special or hot rod in this engine compartment. It's merely a day cruiser for a Biker that rides every day there isn't ice on the roads or needs to haul something bigger than a tire, yet smaller than a sheet of drywall.
That's my Dad...2 Wheels all year if the snow doesn't drift! = )

[geezer#99]

Originally Posted by YourBuddy'sTruck

From the photos, you can tell that my Dad already painted and installed the Heads.
Is there a problem with these heads? Would you use them if you had them?
The money is already spent. The intake is simple enough to return. The heads, not so much.
If you had these heads installed on your truck, What Intake would you use?
It is not a problem to get a Quadrajet to put on here.
I'll take any advice you give and pass it on.

(I say, Summit is kind'a disapointed me here? Like when my In'Laws went to Best Buy for an iPad and came home with a MacBook?)

Not hard to remove paint, pack them up, send them and the intake back and start over.
Are you sure you have a 350?
Those 2.02 intake valves won't clear the bore if you have a 305.

[rcazwillis]

For an intake that works, search summit for that head part number. There is a tab below the pic of the heads that says "suggested parts." Filter down to intake manifolds and you will see a list of manifolds that will work. You will need the 2 barrel adapter referenced up above. Make sure you get a gasket kit for a vortec head.

[YourBuddy'sTruck]

Thanks again everyone. There's enough info to go on. I'll chime back after the dust settles to say what all transpired.

[geezer#99]

Originally Posted by rcazwillis

. You will need the 2 barrel adapter referenced up above. .

You'll need an adapter but that one won't work.
It's for a holley 2bbl. Different bolt pattern.

[jocko]

at a minimum, Summit sold you a package that didn't work. they could take the whole thing back as far as I'm concerned, painted or not. clearly the sales rep didn't have a clue.

Step 1: confirm via engine stamping what you have - i.e. make sure it's not a 305.

a) then, if all he wants is a used stock replacement head for a strictly one for one replacement, I'd go locally to a machine shop and ask, they're usually used as doorstops.

b) If he wants new stock replacement heads only: https://www.summitracing.com/parts/sum-152123 (can't imagine why Summit didn't offer him these...) I'd buy 2 with a gasket kit and call it a day - and just use all the stock stuff he has - intake/carb, etc. If he doesn't want to do the whole top end kit route below, he could just add a 4 barrel carb and manifold to this setup and be pretty good to go. I do believe the 2 barrel manifold will work with these, but I'd confirm first if he chooses that route.

c) If he wants a set that matches perfectly and a little boost in performance for his troubles, a top end kit would be a known entity at least. Edlebrock makes em, one stop shopping. https://www.summitracing.com/compare# (they all state they come with a carb, but one is not shown - I'd confirm when ordering). The parts your dad ordered above are not inexpensive ones, so if he's interested in a whole kit, one of these would work. No matter what, you want a DUAL PLANE manifold-based kit.

Considering Dad has been driving around with a 2 barrel and that he probably wouldn't be doing this if the head hadn't cracked - I'd make a few quick calls locally to see if he can find a matching cc head locally. Then, would quickly transition to B. If he wants to soup it up a little, add the intake and a carb, and he'll be good to go.

[YourBuddy'sTruck]

Thanks to everyone for all the advise from myself and my Dad too.
The parts are romoved and being sent back.

Dad and I learned a lot here, so thanks for spelling things out to us too.
Never even knew about different angles on heads and such.

I feel odd as I've never had any trouble with Summit, ever?
But if an old man called you up for heads on his old '72 C10, why the heck would the word Vortec even come out of your mouth?

[garyd1961]

Vortec heads are good heads, with a four barrel carb they would add a lot of power to your motor. The heads alone will add 30+ hp. If you use the vortec heads and a stage 1 intake it will make a lot of low end torque. I used the summit brand intake with a Holley 4 barrel (vacuum secondary's) and I like the way my motor runs.
BTW, 906 is the casting number for factory vortecs that came on a 3/4 ton truck. I have them on my motor.
I can understand wanting to keep the original intake and carb though.