Where can I find aftermarket 400 heads?

thanks

 

AFD, CHI, and PAVTEC have them, edelbrock are coming out with them.

 

http://www.pavtek.com.au/pp_3vheads.html
http://www.airflowdynamics.com.au/cleve2V.html
http://www.chiheads.com/heads_02.html
some prices are in AU$

 

Thank you Daniel

 

I find myself lusting over a set of these heads. At $1500 for a set of bare heads, however, my trusty and rusty ol' truck may have to wait.

Thanks very much for the links.

Have a great day,
Doc

 

The Pavtek heads are the CHI heads with a price markup.

I can vouch for the CHI-3V heads, as I am using a set. The CHI heads require the use of an adapter (supplied by CHI) to work with a 351M/400 intake manifold. I believe that the AFD 2V heads will mate to a 351M/400 intake without an adapter.

I recommend buying the full-up heads instead of the bare heads. By the time you buy the seperate parts and pay for assembly in the US, you will exceed the amount that CHI or AFD charges.

 

whats different about the CHI heads that you need an adaptor?
Do they have all of the holes for accessory brackets?

 

CHI-3V heads are raised port heads. The intake ports are located in the 351C-4V locations. You need adapters to raise the 2V intake to mate properly. CHI does supply the adapter.

 

i recently e-mailed chi and asked several questions about the 3v heads, and one little bit of info i got back in their response was that they are testing intake manifolds for the 351m/400 , and if things go well will be putting it on the market.

 

Yes, I have been told that CHI is planning a 351M/400 intake. It may be too far in the future for those who are building now. If you can wait you may have a choice of Edelbrock, AFD, and CHI heads and intakes.

 

Edelbrock is in the position to put together a fabulous product package.

In the mid eighties while there still a few Clevelands left on the roads, Ford Motorsports offered the 351C 2V heads with a quench chamber, basically the Aussie head, maybe it was indeed the Aussie head. In their catalog they also gave information about where to get an intake manifold from a company in Fort Smith, Arkansas that allowed you to put these heads on a 302. Given the superior flow of the Cleveland head, this was a GREAT setup.

Given Edelbrocks development and production capabilities, it would be a walk in the park for them to produce a great, aluminum head and to broaden the market for it, provide an intake manifold that would allow these heads to be used for 302's and another for the 351W.

This would benefit us Cleveland or M guys because they could sell more of the heads, thus, most likely, bringing down costs.

My $0.02,
Doc

 

i been thinking about a chi set up w/ the 3v heads and the chi clevland manifold, but don't know about the adaptablity. also the chi clevland manifold is suposed to be best between 3000-7000 rpm so i don't know about how good it would perform on a 351m/400.

 

It would work fine on an M as long as that is the kind of engine you want. It will have to be cammed for that RPM range and, of course, not very streetable and certainly not very good for towing.

Have a great day,
Doc

 

You will need adapters to use a manifold made for a Cleveland on a 400. I am using an Edelbrock Streetmaster intake (351M/400) with the adapters supplied by CHI. A Holley Street Dominator(351M/400) is another single plane intake that could be used. Neither of these manifolds are currently being produced, but they are available used.

 

Those Aluminum Aussie heads must be AFD heads. Any intake manifold that fits a stock 351M/400 will fit the AFD 2V heads. For the right compression ratio, use the new Hypereutectic zero deck piston from Tim Meyer. Get the pistons dished to get your CR to about 9.5:1. Use the cam used in Tim Meyer's motor(see thread 'It's Alive'). You should get better Dyno results than Tim Meyer is getting with iron Aussie heads.

Look at the difference between intake manifolds on Tim's website.