How many of you guys are running the RR / Wenzler Cylinder Head - Intake package? How do you like it?

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Of course I like mine. I would never go with anything else.

 

What Nick said x2

 

Never tried anyone elses aluminum heads, but the rrp heads work very well on my bbo.
No problems for 4 years/20000+miles. Revs happily.

 

Dmullin do you have them on the white car ? If so can you post some engine shots with them on please.

 

Firefrost,
They are on my azure blue(sometimes looks white) 70 442.
I will post some engine bay shots on my profile shortly.
I'm new to being a member so have patience...they will show up.
They engine bay is dirty from the seasons driving, but you can look past the grime.

 

Checking back to see any updates on the RR heads? Any problems or issues with them?

 

I have them on my engine. In the right hands they can make some serious power.

 

Sweet!
Where’d you get the belly/valley pan?
Thanks.

 

Is that a custom LS intake manifold?

 

There is no separate valley pan. It's part of the manifold.

 

It started life as a Mast Performance bolt together LS3 manifold.

 

The whole engine bay and the engine are a thing of beauty!! Gear or belt, replacing timing chain?

 

Thank you. It still has a timing chain.

 

Anyone experience porosity issues with the Wenlzer/RR heads?

 

I made this edit because it was brought to me as a concern about spreading hearsay. Someone quoted my comment so it's not gone but I thought I would just share info from a major published book talking about first hand info about the issues. This is readily available info. Although not indepth on the issues you can probably call BTR and ask what they where. But it's there in text in that professionals first hand experience.

 

If the heads undergo a pressure testing, that should reveal any porosity issues, right?

 

Theese heads are cast by Wenzler, some of the early heads had porosity issues, that has been corrected. There was a rumor many years ago of somone taking scrapped heads out of the trash and selling them as used. Always look on the end of the heads for a RR job number.

 

BBO Omega, I have a set but sadly not on an engine yet. The intake is like yours with the crease on the runners. Obviously it must of been in the original casting. I haven't seen a lot of these intakes maybe they all are like that. I used a flap wheel to carve it down and eliminate most of the ugly casting stuff and also to lighten it up a bit. These things are thick and heavy. The inside of the intake is probably uglier than the outside with all kinds of casting flash. I cleaned up most of the flash and tried my best to smooth it out but it still needs more work. I have a new appreciation for the people who do this for a living. Did you touch up the inside of your intake or run as cast?

Chadman, what can I say that is a beautiful engine bay and that intake is a work of art. Any details on the heads or intake. I've seen some of your time slips its definitely a Rocket.

I don't see much traffic about the Rocket Racing stuff either everyone is real happy or they are all in the garage. I'm hoping for happy. I know Ralleye Bob used to post alot about Rocket Racing, he was definitely happy with them.

 

@chadman isn't that Milan's old engine ?.

 

RR now makes a machined aluminum valley cover

 

Does that valley cover seal well?

Nice thing about that is that it kind of creates an "air gap" intake to keep hot oil and engine temps off the bottom of the intake.

 

So the intakes are pretty rough & heavy? Even the newer castings?

 

I always found it funny how they advertise the air gaps like air actually flows through the intake enough to cool it. I feel the oil that splashes the intake will not cause enough heat to actually transfer into the runners or plenum. I feel the cylinder head actually transfers the most heat though the flange. The openings help nonetheless to for cooling and cut the amount of heat transfer. You gotta remember the thicker the flange the thicker the runners the more they will hold heat. I learned this from racing RC cars a thinner heat sink on the electric motors with more fins was more effective than a thicker one . I always felt the idea that oil gets the intake hot is just a selling point because the amount of heat the cylinder heads transfer is greater . Also keep in mind ambient under hood temps also greatly play a huge Factor. I did some testing on my car because there was a fine point where we would encounter heat soak. The car would stay consistent but once you hit a certain range in heat it just flat out kept falling off. The biggest factor being the under hood temps.

 

I cant speak for the newer intakes but mine was not the prettiest. If I paid by the pound I did very well.
I am assuming they cast them big and heavy to allow some custom work. Rocket Racing may very well do this but its a time consumer, so leaving it as cast would be smart.
I know there are fast Olds combos out there with them but I cant say if they leave them stock or work the intake. If I was a betting man i'd say the intake would easily flow what the as cast heads could flow. Has anyone flowed one of these intakes with the head ?

The head castings are nothing like the intake manifold , they are decent looking.

I'm not sure what is an early casting or a late casting on the RR components. They are doing great strides with producing a new engine block - thumbs up for that.

 

I can attest to the quality and pressure checking that RR puts into their heads prior to being put out.
100% satisfied customer.

10.42 best to date 93 octane pump gas street car.
Re jetted better runs to come !

 

Just a quick note on intake manifold temps: the Engine Masters guys did it. Everything from air gap manifolds to ice bags on the intake to a cool can. The fuel temperature is what made the difference- old school tech from way back. Manifold temp made very little to no difference at all.

....and, yes, despite this, I did carve up a Torker intake, trying to make an air gap. I'm not so smart sometimes.

 

E85 makes more HP as it is cools the intake runner and once in the combustion chamber, it's a cooler charge? The higher octane is a plus but only high compression engines can make use of that.

 

Thanks for the update! That is quick for pump gas. Did you get the basic RR heads or did you have them port them even more?

How tall is that intake compared to let's say a Torker?

 

It's not NEARLY as tall as a torker.
I'd say the RRP intake is close to 2" shorter. That said...I still needed a cowl hood.
-peter

This damn thing is TALL!
(not to mention the damn spacer I have to run.)

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So that intake only has about a 3.25” pad height? Are you sure?

 

I ran the Torker on Edelbrock heads prior.
It is real close, the RR manifold sits approx 1/2" higher.

With carb spacer and NO2 plate you do need hood clearance. (2")

My heads are CNC ported, 2.2 intakes, bar rockers

 

Ok that’s a Victor you know, not a Torker.

 

(Forehead slap!)
Yes…It’s a Victor.
And I’m an idiot.
I certainly knew the difference when I looked for close to a year to try and find one.

My bad guys
-peter

 

Well done!

 

I remember hearing that a possible NEW intake design was coming out from RR. Anyone have any updated info on that?

 

They do. It's a big block only intake that is a much better design than the old low rise POS they've had for years now. John Stolpa has had the prototype on his own car for a few years now.

 

So that is the intake you get if you order the heads & intake package ?

 

All I know is that is the new intake design. You'd have to talk with Rocket Racing about which is currently included with the package.

 

Still very happy with my Rocket Racing heads, intake etc.....