Pro-Top line cyclone heads?

Good Morning all

Has anyone tried the Pro-topline cyclone heads for sbf. They look like they are well designed. Maybe a few things in them that just flow numbers don't show. The chamber looks like it would setup some nice swirl. It would be nice to hear from anyone who has had AFR heads and switched to the cyclone heads.

Thanks
Jim

I recently installed a new set of protopline 180's on my 306.
I had to change pushrods also, so check the length.
The heads flow 5-10cfm more than the AFR 185's according to D&D motorsports and Texas Hot Rods. They come as cast and don't have the pretty CNC porting like the AFR head but the flow #'s are great. I was actually going to get the AFR heads but didn't want to wait an extra 3-4 weeks so I picked up the PTL heads with the higher rate spring package (up to .600 lift) for the same price as the standard AFR set up.
My 64 sedan ran a high of 12.92 @ 104-105 with a set of CNC power heads. the car is faster now but nthe shift point is up 300-400rpm to take advantage of the increased air flow, but I don't have any ET's yet. Hopefully this weekend if it quits raining.
hope this helps.

I swapped from a set of fully ported Roush 200 Iron heads to the 215cc iron Cylclone heads on my 393 in my fairlane. so far it has picked up in the 1/8 4 tenths on motor and 5 tenths on the juice. I would say they are a helluva set of heads, and cheap too!

I have seen several sets of them for dirt oval cars, some of the earlier ones came with pushrod sleeves in them making a nice straight shot, the ones I got had none and were a little rough looking on the casting of the intake port, but none the less, my heads flowed almost exaclty like the others with the pushrod holes sleeved. Mine flowed right at 312 cfm at .650 lift right outta the box. However, they jumped to around 338 after porting. Also, I think I gave around $860 bucks for them from flatlander assembled with doulble springs.

I bought a set of iron 215 for my 408. The finish on them was a little crappy I had to have them taken down and cleaned up. They had metal shavings all over in them but after I got them cleaned up they looked good and with the camresearch solid this thing makes great power. I got mine from Flatlanders also but they screwed me on some other stuff so I have made it my goal to tell the world they SUCK. I would look into shaverhead racing for the next set.

Good Morning Gents

If you go to stangpro.com they have a little article on those new cyclone heads. Just looking at the design they look like they have potential to make power. I am glad to hear that they worked well. I don't think it just a flow thing. I like the design of the combustion chamber.

Jim

oH CRAP!!!

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On 2004-09-30 10:30, chilly460 wrote:
You may have a hard time finding a pair...from what I understand the company had major financial issues and may have gone bankrupt.
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Is anyone sure on this ?
Ive read a couple of rumors in threads on some US Ford sites but after doing a few searchs cant find any other infomation to support this
http://www.procylinderheads.com/

Either go through Flatlander, or go through Shaver Racing Heads. They still have them. Pro Topline may have went outta business, but the casting manufacturers are still going strong. You can get the same head, different name. Such as Shaver heads.[img]/phpBB/images/smiles/icon_smile.gif[/img]

Flatlanders just gets them from shaverhead racing anyway so just go straight to them.

Pro Topline IS out of business(in receivership) and nobody is casting those heads under a different name. There were many sets of PT heads cast and a huge amount made it to the US.

I have 2 sets of the PT's. I have 1 set of 215/64 irons and a set of 215/64 aluminum. My iron heads came with the pushrod hole sleeves installed and is quite a nice feature. I ported them and they are now 237cc intake ports and had them angle milled .115"for 52.5cc chambers after opening up the chambers to unshroud the intake valve side of chamber). They are on my solid roller 392 and should find out how well they run this coming weekend compared to my heavily ported Windsor Sr heads I had on there although I also stepped up to a Super Victor intake too with the PT heads.
My aluminum 215/64 heads are on hold until I find out how the ported iron heads perform. I had the irons almost finished when I bought the aluminums which is why I am using the iron heads right now. My alum heads do not have the pushrod sleeves in them. The bare iron heads had a protective coating on them that I had removed by vatting. The bare alum heads I have do not have nor do they need this protective coating.
[addsig]