Cylinder heads

[BUIZILLA]

not trying to strike a nerve, I didn't know for sure, website makes no mention of USA made... and it should !

[MERPerformance]

I'll have to mention that to the guys Monday. I guess if it's not Dart, World, Brodix, AFR, Edelbrock, people think it's made in China.

[DAREDEVIL]

I'll have to mention that to the guys Monday. I guess if it's not Dart, World, Brodix, AFR, Edelbrock, people think it's made in China.

LOL

[Chris]

Yes- PorComp is horrid Chinese crap.

Is ProFiler cast by Canfield?

[DAREDEVIL]

I like those # on the AFR's !!!! mmhhhhh, looks tourqy !?

[MERPerformance]

Yes- PorComp is horrid Chinese crap.

Is ProFiler cast by Canfield?

No, Ray has his own casting company.

[BDARCHER]

NO! They are cast in Ohio, and machined in North Carolina. Ray Franks, company started by casting aircraft parts. The castings are some of the best I have ever seen, the casting is a ceramic mold or it was up until now. I think they went to a clean sand cast to keep the price down. They started by casting a 12 degree head to compete in the Pro Stock Drag Racing, but the head required a OEM part number to be legal. Ray, had his own team and car, so since that didn't happen, he sold to others.
Sorry, for going on. You hit a nerve, asking if they were CHINESE. If you called Mike,Jan, or Dave @ Profiler and ask them that, they would FLIP-OUT!
You must have the Profiler, confused with PRO-COMP
Mark

The casting with ceramic mold is investment casting. and is very pricey compared to sand. Investment casting is used to cast a precision part. Im wanting to put some Alum heads on my 500 EFIs. But not sure if Id even notice the HP in the heavy BT 46. What do you fellows think. thanks Bob
PS and no chinaman parts for my Chevys

[MERPerformance]

The casting with ceramic mold is investment casting. and is very pricey compared to sand. Investment casting is used to cast a precision part. Im wanting to put some Alum heads on my 500 EFIs. But not sure if Id even notice the HP in the heavy BT 46. What do you fellows think. thanks Bob
PS and no chinaman parts for my Chevys

I spoke with them today first thing, they have gotten away from the ceramic and have switched to sand, they were having problems with core shift. Cost was the other factor. By the way they have released a 480 head.
They will also have a new web site out soon with alot of facts. It will also state made in the USA.

[Raylar]

Catch22:

After re-reading your original post and followup post on what you are doing I would caution you on throwing 7 lbs of boost on a stock internals of a
454MPI engine. That engine even with a good head like Profiler or AFR will have a serious weakness in the rotating assembly for that kind of boost. You might want to check with some other 454mpi owners who boosted to those levels here on SeriousOffshore and make sure you're not creating a bigger problem with a block not up to the task! Just a thought.

By the way, Profiler heads are not Chi-sneeze castings! As Mer said, they are made and machined right here in the good ol USA! We oughta know, they cast our heads and Greg machines them! And for the record they are plaster core castings, very smooth and very accurate!

[Catch 22]

Catch22:

After re-reading your original post and followup post on what you are doing I would caution you on throwing 7 lbs of boost on a stock internals of a
454MPI engine. That engine even with a good head like Profiler or AFR will have a serious weakness in the rotating assembly for that kind of boost. You might want to check with some other 454mpi owners who boosted to those levels here on SeriousOffshore and make sure you're not creating a bigger problem with a block not up to the task! Just a thought.

By the way, Profiler heads are not Chi-sneeze castings! As Mer said, they are made and machined right here in the good ol USA! We oughta know, they cast our heads and Greg machines them! And for the record they are plaster core castings, very smooth and very accurate!

I appreciate each and every post here. It's helped me a great deal. Raylar the motor is an mpi mag. I have been told that the mags have the better parts. It's been blown for 4 years. 3 of them were with 5lbs (while under warranty from procharger) and the other year with 7lbs. Every 12 or 18 months I have a compression test done and everything is good. I had a leak down done and it showed I have an issue with 3 or 4 of the exhaust valves, maybe more but not as bad as those, (only exhaust). That's why I am thinking about a better set of heads. Thanks again for everyone's help.

[Raylar]

Good to hear Catch22, glad to hear your mpi is holding up well with boost levels you're using. The exhaust valve issue is most likely from exhaust gas temperatures EGT"S being to high for standard GM exhaust valves. You would want to use Inconel exhausts in either your stock heads or any aftermarket heads if you make a change.
Kind of keep in mind that if you use a better flowing head than your current heads you will probably also see a drop in boost levels from that change and you may have to increase the boost coming from the supercharger to get back up to 7lb or so levels. This will mean some bigger power increases and will also probably facilitate fuel recalibration and more strain on that mpi bottom end possibly. Just somethings to plan for and keep in mind.

Best Regards,
Ray @ Raylar