AFR BBF new head

http://blogs.hotrod.com/straight-from-the-2012-pri-show-afrs-new-bullitt-big-block-ford-head-42655.html#axzz2DqdcpeZn

Discuss.

hope the valve and spring package isnt junk like whats in the sbf heads.........

I wonder how they will stack up aganist the Kaase p51 heads. They look killer.

Good question on the pistons. Based on that the valves are moved I'd think will need the intake notch relocated. The angle changes they listed don't make sense to me. They say the intake is 14° and the exhaust is 4° ??? Stock is Int. 9.5°x5°, Exh. 15°x4° and the Kaase SCJ/P51 Int. 8°x4.5°, Exh. 4°x4° so not sure what those angles they list mean.

466cj wrote:Good question on the pistons. Based on that the valves are moved I'd think will need the intake notch relocated. The angle changes they listed don't make sense to me. They say the intake is 14° and the exhaust is 4° ??? Stock is Int. 9.5°x5°, Exh. 15°x4° and the Kaase SCJ/P51 Int. 8°x4.5°, Exh. 4°x4° so not sure what those angles they list mean.

Unless they are trying to incoperate chevy design into the heads.... IE 15 degree BBC heads.

any price,s released yet, bare or built. cheers jonny

Can't believe there isn't more discussion/excitement about this. In our small BBF world this is huge news.

Im sure someone on here had eyes on at PRI and has talked to the guys in the booth.

Let the technical discussion roll.

we got a lot of good choices already I guess

I took a look at the AFR head at the PRI show. I "fingered" the ports and took some cell phone pictures. The head was a plastic prototype because they had not cast one in aluminum yet. The intake runners appeared smallish, about 270cc. The exhaust port looks a bit undersized also. I couldn't tell if it was raised, but the floor was filled and they had about as generous of a radius as could be expected on the short turn of a BBF exhaust port. They told me that the head should be to the market by May. I'll post some pictures unless someone beats me to it.

If you can post up some more pics that would be great Alvin. Any more info is welcome too. Even the junk ProCrap stuff fills a niche for this engine, and I'm hoping this is something more substantial.

windsor wrote:Can't believe there isn't more discussion/excitement about this.

There has been,......



https://www.429-460.com/t15259-afr-heads

466cj wrote:Good question on the pistons. Based on that the valves are moved I'd think will need the intake notch relocated. The angle changes they listed don't make sense to me. They say the intake is 14° and the exhaust is 4° ??? Stock is Int. 9.5°x5°, Exh. 15°x4° and the Kaase SCJ/P51 Int. 8°x4.5°, Exh. 4°x4° so not sure what those angles they list mean.

The stock intake valve angles you mention are not right.
They are not the same as a Cleveland.

rmcomprandy wrote:

466cj wrote:Good question on the pistons. Based on that the valves are moved I'd think will need the intake notch relocated. The angle changes they listed don't make sense to me. They say the intake is 14° and the exhaust is 4° ??? Stock is Int. 9.5°x5°, Exh. 15°x4° and the Kaase SCJ/P51 Int. 8°x4.5°, Exh. 4°x4° so not sure what those angles they list mean.

The stock intake valve angles you mention are not right.
They are not the same as a Cleveland.

X2.... I'm not gonna waste a bunch of time looking it up but, I was thinking the stock 460 stuff was 15*ish.

It'd been cool if the 429-460 had the cleveland cyl head package.

rmcomprandy wrote:

466cj wrote:Good question on the pistons. Based on that the valves are moved I'd think will need the intake notch relocated. The angle changes they listed don't make sense to me. They say the intake is 14° and the exhaust is 4° ??? Stock is Int. 9.5°x5°, Exh. 15°x4° and the Kaase SCJ/P51 Int. 8°x4.5°, Exh. 4°x4° so not sure what those angles they list mean.

The stock intake valve angles you mention are not right.
They are not the same as a Cleveland.

Want to hear something funny Randy I took those numbers from YOUR post in this thread:

http://www.460ford.com/forum/showthread.php?t=105559

Scott Johnson in that same thread and on his website list the std Intake as "5 degrees / 9 degrees 30 minutes ( inclined in 2 planes) for the intake".

So guess once again I should know better to quick google something for an answer, at least my printed reference materials are correct... I'll just have to look it up the old fashioned way... As for cleveland valve angles I hope they did.

Steve

OK looks like stock 429/460 Intake is 15 x 5 . Cleveland Intake 9.3 x 4.15. Lesson learned always look in the book... the angles in the article now make sense too...

466cj wrote:

rmcomprandy wrote:

466cj wrote:Good question on the pistons. Based on that the valves are moved I'd think will need the intake notch relocated. The angle changes they listed don't make sense to me. They say the intake is 14° and the exhaust is 4° ??? Stock is Int. 9.5°x5°, Exh. 15°x4° and the Kaase SCJ/P51 Int. 8°x4.5°, Exh. 4°x4° so not sure what those angles they list mean.

The stock intake valve angles you mention are not right.
They are not the same as a Cleveland.

Want to hear something funny Randy I took those numbers from YOUR post in this thread:

http://www.460ford.com/forum/showthread.php?t=105559

Scott Johnson in that same thread and on his website list the std Intake as "5 degrees / 9 degrees 30 minutes ( inclined in 2 planes) for the intake".

So guess once again I should know better to quick google something for an answer, at least my printed reference materials are correct... I'll just have to look it up the old fashioned way... As for cleveland valve angles I hope they did.

Steve

All that information was gathered from that year FRPP catalog which was later determined to be wrong.

Yes Randy, I see the wrong part. Seems once misinformation gets out, it is always out there.

You may want to go back and correct your old post for accuracy sake. Regards, Steve

466cj wrote:Yes Randy, I see the wrong part. Seems once misinformation gets out, it is always out there.

You may want to go back and correct your old post for accuracy sake. Regards, Steve

Will do ...

richter69 wrote:hope the valve and spring package isnt junk like whats in the sbf heads.........

Wow, I sure hope the springs in the 185's that are on my 5.0l are ok. It's been about 13 years since I put them on and I have never so much as checked the valves in that time.

hows this head going to stack up vs the P51 heads any thoughts

5pointslow wrote:hows this head going to stack up vs the P51 heads  any thoughts

AFR plans to do dyno tests against several heads, including the P51's.

jasonf wrote:

richter69 wrote:hope the valve and spring package isnt junk like whats in the sbf heads.........

Wow, I sure hope the springs in the 185's that are on my 5.0l are ok. It's been about 13 years since I put them on and I have never so much as checked the valves in that time.

I think yours will be ok !

They sure didn't talk those heads up at SEMA. Whomever we talked to didn't think they would be world beaters by any means. We were hoping to see another race head option.