Which Heads Are Better?
Melting Slicks
Joined: Apr 2002
Posts: 3,019
Likes: 0
From: down that one road next to that big tree
Re: Which Heads Are Better? (Vette_Crazy)
afr 190...this is a no brainer. #1 the fast burn has a raised runner which means you run a scoggin doggy tpi base or a miniram 3, the fast burns don't flow as well as the 190 and they have larger runners which make less velocity.
Melting Slicks
Joined: Jun 1999
Posts: 2,872
Likes: 3
From: Wilmington NC
Re: Which Heads Are Better? (Vette_Crazy)
Agreed the AFR heads are a choice product! just be aware that some minor machining/deburring of the oil return passages is recommended as the oiling return holes are simple drilled holes that are a bit high for good return and cause some puddling above the valve cover/cylinder head mating surface which in my experience has lead to leaking or hard sealing valve covers. but the performance is excellent from these heads!
Chris
Chris
Instructor
Joined: Nov 2002
Posts: 180
Likes: 0
From: Chicago IL
Re: Which Heads Are Better? (Vette_Crazy)
AFR190 heads will out flow Fast Burn heads out of the box. Lets not get into ported one either!!!
But like said before, with the fast burns you need to get a new intake to match the runners. The afr will work with any standard sbc intake
But like said before, with the fast burns you need to get a new intake to match the runners. The afr will work with any standard sbc intake
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
Re: Which Heads Are Better? (tpi 421 vette)
Just another consideration here, I will be buying Canfield 220CC for my 406! They make a 195 CC, and dont pay attention to the pricing on the home page of Canfield. Email me if you want a link to the best pricing I have found so far on their heads.
Also, in doing a side by side the Canfields are vrtually identical in flow and better flow in spots on the 220CC version. You can go to the AFR site and the Canfield site and print the flow charts and do a side by side!
http://www.canfieldheads.com/sbc.html
just my .02!
[Modified by ld85, 9:23 AM 12/7/2002]
Also, in doing a side by side the Canfields are vrtually identical in flow and better flow in spots on the 220CC version. You can go to the AFR site and the Canfield site and print the flow charts and do a side by side!
http://www.canfieldheads.com/sbc.html
just my .02!
[Modified by ld85, 9:23 AM 12/7/2002]
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Burning Brakes
Joined: Feb 2002
Posts: 804
Likes: 5
From: Fresno CA
Re: Which Heads Are Better? (Vette_Crazy)
I've got the Dart Pro1 200's on my new 408. The flow numbers on them are extremely good and the quality is very nice. They are definetely worth looking at.