AFR BBF Head

Maybe they are trying to make it look like a Rectangle Port BBC to try and get sales LoL.

supervel45 wrote:Maybe they are trying to make it look like a Rectangle Port BBC to try and get sales LoL.

OR, a low port A460.

AFR makes a good product. Their SBF stuff has done well for years. You get a CNC head, and it only cost a little more. I for one want as many choices as possible. If you're worried about the square port, don't even consider an A460, C460, Profiler, EX514. They're square. Also Awesome.

I know that some one out there that has had the same problem that I am having . I break bolts in the roller
lifters ever time I take it out. if any one out there can help me out it sure would help me a lot.

my email is carlthomasd@aol.com thanks Carl Thomas

carlthomasd wrote:I know that some one out there that has had the same problem that I am having . I break bolts in the roller
lifters ever time I take it out. if any one out there can help me out it sure would help me a lot.

my email is carlthomasd@aol.com  thanks Carl Thomas

I didn't know roller lifters have bolts. Can you clarify on that a little?

the c 460 heads have 2 bolts that holds the roller rocker in place . they are 5/16 . I break one every time I make a pass. I need some help bad. thanks Carl Thomas

I am sorry for saying roller lifters I meant roller rockers

carlthomasd wrote:the c 460 heads have 2 bolts that holds the roller rocker in place . they are 5/16 . I break one every time I make a pass. I need some help bad. thanks Carl Thomas

Jesel has an upgrade option to ARP 2000 12 point bolts. I think WW may also.

carlthomasd wrote:I am sorry for saying roller lifters I meant roller rockers

I'd be looking for coil bind or some other bind in the system. Maybe a geometry issue.

Scott Foxwell wrote:

carlthomasd wrote:I am sorry for saying roller lifters I meant roller rockers

I'd be looking for coil bind or some other bind in the system. Maybe a geometry issue.

X2. I'm aware of people breaking the standard hardware but not every pass or even every race.

dfree383 wrote:Comparing a CNC ported head to an as cast head is soooooo fair.

How about a set of full boogie P-51s compared to the Big CNC heads for a fair comparison?

You all have seen several P-51 race engines over 1000hp and I've personally done over 750 on pump gas 466" engines for EMC

How much $ would someone be able to get a set of "full boogie P-51s" for? I understand your point that it's not an apples to apples comparison, but it is an out of the box comparison and the AFR 315s are not much more expensive than an assembled set of P51s. So I'd personally rather see that comparison than one that involves a $5k+ set of P51s

Yes, I know I just bumped an old ass thread. I'm getting close to looking into doing a top half upgrade and been trying find info on the AFR's as to how they stack up against P51's. Just happened to run this thread up in a search

Hardy wrote:Yes, I know I just bumped an old ass thread.  I'm getting close to looking into doing a top half upgrade and been trying find info on the AFR's as to how they stack up against P51's.  Just happened to run this thread up in a search

I still haven't seen much dyno information to prove out the flow numbers of the AFR's but they sure seem like a cost effective option to the P51 that should make as much or more power.

AP

I did see one guy on Facebook that dynoed his 533 with AFR 315s. Made 830 hp and I think 730 torque. Decent but not anythOmg special. Made good power for the rpm at that ci, though

Hardy wrote:I did see one guy on Facebook that dynoed his 533 with AFR 315s.  Made 830 hp and I think 730 torque.  Decent but not anythOmg special.  Made good power for the rpm at that ci, though

Are you referring to Scotty's build? If so, that wasn't a max effort build.

HorsinAround wrote:

Hardy wrote:I did see one guy on Facebook that dynoed his 533 with AFR 315s.  Made 830 hp and I think 730 torque.  Decent but not anythOmg special.  Made good power for the rpm at that ci, though

Are you referring to Scotty's build? If so, that wasn't a max effort build.

??? Bryan Parsons posted it on fb. I still think it's pretty good considering the peak torque at 4700 and peak hp at 6900

Not a max effort by any means, not vs. P-51's, but real world non the less.
Outperformed the A429's with 20 degrees less duration and .100 less lift.

http://www.460ford.com/forum/37-engine-tech/238585-afr-528-vs-a429-514-real-world-results.html


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https://www.facebook.com/pg/PpamLLC/photos/?tab=album&album_id=444764065901276

Hardy wrote:

dfree383 wrote:Comparing a CNC ported head to an as cast head is soooooo fair.

How about a set of full boogie P-51s compared to the Big CNC heads for a fair comparison?

You all have seen several P-51 race engines over 1000hp and I've personally done over 750 on pump gas 466" engines for EMC

How much $ would someone be able to get a set of "full boogie P-51s" for?  I understand your point that it's not an apples to apples comparison, but it is an out of the box comparison and the AFR 315s are not much more expensive than an assembled set of P51s.  So I'd personally rather see that comparison than one that involves a $5k+ set of P51s

What's a port job usually cost you for a set of aluminum heads? It's no $3000 here.

You don't need much grinding to get a lot better numbers on the p-51 heads

Carl wrote:Not a max effort by any means, not vs. P-51's, but real world non the less.  
Outperformed the A429's with 20 degrees less duration and .100 less lift.

http://www.460ford.com/forum/37-engine-tech/238585-afr-528-vs-a429-514-real-world-results.html


.

Nice slanted comparison...... pocket ported copy of a factory iron head vs a CNC ported AFR head with an extra .15 stroke, that's real world salesmanship.....

dfree383 wrote:

Carl wrote:Not a max effort by any means, not vs. P-51's, but real world non the less.  
Outperformed the A429's with 20 degrees less duration and .100 less lift.

http://www.460ford.com/forum/37-engine-tech/238585-afr-528-vs-a429-514-real-world-results.html


.

Nice slanted comparison...... pocket ported copy of a factory iron head vs a CNC ported AFR head with an extra .15 stroke, that's real world salesmanship.....

Dave you know I'm no expert so I'm going to ask a couple dumbazz questions. 1. would the extra 14 cubes make that much difference? 2. the 514 had a 244/252 .608/.633 118LS solid flat tappet, and the 528 had a 224/234 .538/.562 112LS hyd flat tappet cam. Is this cam a little small for the 270 head? If so then I can't help but wonder what times he could have posted if he had used a cam suited to the head.

dfree383 wrote:

Hardy wrote:

dfree383 wrote:Comparing a CNC ported head to an as cast head is soooooo fair.

How about a set of full boogie P-51s compared to the Big CNC heads for a fair comparison?

You all have seen several P-51 race engines over 1000hp and I've personally done over 750 on pump gas 466" engines for EMC

How much $ would someone be able to get a set of "full boogie P-51s" for?  I understand your point that it's not an apples to apples comparison, but it is an out of the box comparison and the AFR 315s are not much more expensive than an assembled set of P51s.  So I'd personally rather see that comparison than one that involves a $5k+ set of P51s

What's a port job usually cost you for a set of aluminum heads? It's no $3000 here.

You don't need much grinding to get a lot better numbers on the p-51 heads

Gotcha. I took full boogie to mean max effort, 2.30 intake valve, etc. Obviously a typical port/valve job wouldn't be $2500 over the as cast, assembled price from Kaase. And I'm not trying to argue against the P51s at all. If i were making a purchase today, I'd go with them because it is known what they are capable of and they should meet my short term goals, easily. I'm just interested in seeing how theAFRs do in comparable builds because I still have some time before I have to decide.

[quote=defree



You all have seen several P-51 race engines over 1000hp
[/quote]






several NO.

2 , after the heads been around for 10 years , Not what I'd call great.

Huh?

Carl wrote:Not a max effort by any means, not vs. P-51's, but real world non the less.  
Outperformed the A429's with 20 degrees less duration and .100 less lift.

http://www.460ford.com/forum/37-engine-tech/238585-afr-528-vs-a429-514-real-world-results.html


.

I said it over there ,and Ill say it here, not a real world deal with neither eng has the same bore,or stroke.