I know engineermike has well over 600 rwhp with his AFR heads and mild turbo setup that is completely street friendly.

 

And a PTK car with AI ported GM LT1 castings made over 1000rwhp

 

I'm very happy with my AFR LT-4 heads along with the small 58cc chambers for NA!

Have you ever run any AFRs?

WD

 

Don't take this the wrong way, but 120mph out of afr heads, a 396, and a 242/248 cam isn't exactly impressive to me. I was only 2mph behind you with a cam ~20 degrees smaller in duration on a stock 100k bottom end.

 

Reputations are based on marketing more than results, that is what AFR has is a reputation.

A friend has TPIS CNC'd AFRs on his 383 LT1 in a third gen Camaro with TPIS's big cam something like 239/239, now that he took weight out and put a stick in he has finally started to approach my MPH. Again this is with a 383 a T56 and a solid 600lbs less weight, these are old castings too.

Before this he had them on a stock shortblock with a small TPIS cam down around 212 on the intake, it ran about what my car did with stock iron heads 3.42s and a ZZ4 cam at 208/221 .474/.510.

AFR were good heads in the 80s and before when the OEM heads were godaweful. The LT1 heads were a BIG step forward and until the new Eliminator line AFR never tried to address their grossly outdated castings.

For "results" on the Eliminator heads all I have seen is one magazine article and those are BAD sources for information.
Given past results it is a gamble I would not take but if you are a believer go ahead and prove us wrong, somebody has to be the guinea pig, I have done so on some parts over the years but will not do it with this one.

 

lets hear the lsa? that 242/248 cam has 113 lsa but I guess you got no more than 108 right? :=) BTW there are lots of things that effect track times right?

Yea yea look at my sig!! I have a AFR fan

 

What does it run?
I don't understand how so many people can claim good about products with no measured result. I know a lot of guys who think they have something done right or a fast car till they actually run it and see how it compares to cars actually done right.

A friend has a mid 13 second cam only Caprice one of his co-workers has a lowered 70s pickup with what he thought was a warm enough 350 to challenge my friend. By the end of the night the truck had managed a blistering 16.8 second pass .

If traction is a problem MPH still has a story too tell so no excuses there.

 

Actually, it's running in the high 10s now with a DA around 3800 and still street legal!

WD

 

Update your sig then.

 

Am I the only one who has seen the flow numbers on the heads? Were talking 320's out of the box! how could they be no good?

 

Yea, but your high 10s are all coming off the line. Your 60' are great. Your trap speed, isnt. Get it on a real track that isnt a mile above sea level.

 

As far as LT1 heads go, it doesnt get much better then hand ported AFRs...

 

You're correct, I'm getting 1.50s 60ft now. Which is down from 1.67 when it ran in the 11.30s.

WD

 

I am sure the heads are good heads but AFR has a history of taking months and months to fill orders. If they have them in stock and you are lucky enough to get onboard while they still have castings in stock you are good to go. If you miss the boat you could be waiting for months while they gather enough orders to prompt them to make a call to the foundry and buy another batch of castingss

IMO its not worth the wait when you can get a set of TFS heads that will perform just as good and you can have a set in your hands in a week.

I put a max effort (315cfm)set of TFS heads on my 355 and the motor is now in the car and running. hadi waited for the Eliminator series heads like I was going to do the motor would still be on a stand waiting for heads.

We have been hearing about the AFR eliminator series heads for 2 years now. i specifically remember spearking with Tony from AFR at the SEMA show in 2005 about them. All the excitement and glory is gone and people are still waiting for results 2 years later.

If they are in stock and you want to try them out please do and post your results. I opted for a head that can do just as good of a job and was in stock ready to go. Just a weeks worth of work at my heads builders shop and they were in my hands the following week.

 

wtf is the point of bringing up the LSA?

See sig for my times and my 10x LSA cam is 100% drivable. When cruising along it cruises like stock.

No offense, but do you have any track times to talk down to a 10 second car? If you don't.... then....