[mike w]

Has anyone port matched a stock cast-iron Tripower intake to aftermarket Edelbrock aluminum heads?

Is there enough material in the Pontiac casting to match these up?

I am aware of the new KRE manifolds that have enough material, but I have a customer wanting to use a stock cast iron intake on E heads.

Thanks.

[JSuchma]

FWIW, I opened up a factory cast iron Q-jet intake to match a pair of max-ported E-heads on my 535. The tops of the ports on the intake got very thin. It dynoed with no leakage. If the heads are as cast you should be good.

[JEC3039]

Mike -

The alum factory-look-alike manifold I bought from you at Norwalk a few years ago in fact would not cover the E-heads properly (and these are unported heads). The top of the manifold casting and the top of the head port opening were essentially line-on-line.

So I bought the Kauffman manifold to solve the problem, and it's SO big I had to mill some of it down in order for the valve covers to fit, but it did the job.

Jim C

[mike w]

Thank you for the clarification..

[Dick Boneske]

I've used the aftermarket aluminum Tri-Power intake with Edlebrock RAIV heads. We weld aluminum on to the top of the port area, gasket match manifold ports to match the heads. I grind off the nasty looking welds to make it appear as it did before welding. The end result is really good--very good throttle response and fantastic top end from 3,000 rpm to 6,000 rpm. THis was on a 467 and a 428 engine.

I can find pictures if you're interested.

[rtp]

Originally Posted by Dick Boneske

I've used the aftermarket aluminum Tri-Power intake with Edlebrock RAIV heads. We weld aluminum on to the top of the port area, gasket match manifold ports to match the heads. I grind off the nasty looking welds to make it appear as it did before welding. The end result is really good--very good throttle response and fantastic top end from 3,000 rpm to 6,000 rpm. THis was on a 467 and a 428 engine.

I can find pictures if you're interested.

I also have an origional PY aluminum tripower manifold (new) that seems to have ample room to go to ra4 dimensions ...they were nice castings

[rtremaine]

Originally Posted by Dick Boneske

I've used the aftermarket aluminum Tri-Power intake with Edlebrock RAIV heads. We weld aluminum on to the top of the port area, gasket match manifold ports to match the heads. I grind off the nasty looking welds to make it appear as it did before welding. The end result is really good--very good throttle response and fantastic top end from 3,000 rpm to 6,000 rpm. THis was on a 467 and a 428 engine.

I can find pictures if you're interested.

Dick, I am currently facing this issue with a customer's engine. Can you post a picture or two of your manifold ? Is this aluminum manifold a dual plane ? Thank you

[Dick Boneske]

Here are a couple. You can see in both photos how much aluminum was added.

[Dick Boneske]

A few more pics.

[Dick Boneske]

And more.