Reply to "AFD Alum heads"

Kevin, that's not my motor. That's a Parker "2V" Funnelweb intake from Australia (Aussies call them inlet manifolds). Aus Ford Parts in Oregon is one vendor that comes immediately to mind. (503) 804-3117. He also sells the AFD heads.

Just to make sure you are clear on what's out there, CHI makes 4 flavors of head, 2V, 4V and 2 sizes of 3V. The 2V & 4V heads mate with standard 2V & 4V intakes, the 3V head mates with special CHI intakes OR 2V intakes with CHI spacers. The 3V head is available with 185 cc volume intake ports & 218cc volume intake ports.

AFD sells 2 flavors of head, 2V & "stuffed port" 4V. We've already covered the 2V head, the 4V head has intake ports with raised floors that mate up with the Parker "4V" Funnelweb & TFC intakes, which have raised floors in their runners. Raising the floors of the 4V intake port gives the port a contant cross section, reduces turbulence in the port, raises gas velocity and improves flow. Parker sells port "stuffers" for the cast iron 4V heads that are "glued & screwed" into the floors of the intake ports, allowing the use of the Funnelweb intake with cast iron heads. The stuffers make a big improvement.

On the street, non-competitve engines producing under 600 bhp, the AFD 2V head, CHI 2V head or the CHI 185cc 3V head are all that is needed. The small high flowing ports give tremendous throttle response and wide torque curves. I know this advice is contrary to the bigger is better mentality, which is hard for any of us to resist.

Other good parts coming from Australia are Yella Terra rocker arms, Roll Master timing chains & Romac balancers.

Because the subject of Cleveland heads is brought up regularly, I've been thinking of preparing an essay explaning the current choices in Cleveland heads & intakes. I would present the info differently than the way Dan Jones did, avoiding technical stuff about valve sizes & flow numbers, more of a simple overview. Would anyone find that useful? For myself, I thought if I prepared the info once, then each time the question was asked, I could just copy & paste my response, which saves a lot of typing and wear and tear on my arthritic hands.

your friend on the PIBB, George