I priced out both of these,I can get the AFRs new for about $1179,and I can get the Sportsman II's for $759.Both those prices are for the assembled pairs. What would you choose? I'm trying to get an idea of what difference there would be between the two as far as performance.

I'm trying to build my 350 to 400+ HP/Torque,and am looking for a good combo,if you know of one or would like to draw one up I'd appreciate it

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69 Camaro rolling chassis at the moment

AFR's are very good investment.

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Everett 68/350/PG/11.90/115mph

Sportsman 2's are cast iron with the same guide material as the factory heads. The iron guides are inferior to the bronze guides that come with the aluminum heads. The cast iron will wear out faster causing a loss of oil control and the valve job will not last as long. The factory heads would start to show wear at maybe 60,000 miles using stock lift cams. Your results could be even less given a higher lift cam.

The Aluminum heads could actualy flow better out of the box. Never try to save money when shopping for heads. They are the most important selection to make when buying parts to make power. You can tune everything else all day, change cams, intakes etc but the heads are the limiting factor IMHO.

-Mark.

Luke,

My build was dynoed for 415hp.

355
afr 195 heads
10.5:1 compression
edelbrock rpm air gap intake
edelbrock 750 carb (may change to holley 650)
1.6 rockers
1 3/4 hooker cuper comps
2 1/2' flowmasters
Msd electronic ignition
m20 4spd (stock)
4:10 gears
Plan on changing cam to comps 280H 230/230 480/480
current cam is a stock lt1 cam

Never ran her on the track but I would assume mid to low 13's - but I'm not sure.

My suggestion is to spend the extra coin on the heads. This is the area where you should spend your money. Heads are where the power is.

Hope this helps

[This message has been edited by tommyg (edited 07-11-2002).]

Check out this article. It's an older write up, but still an excellent read.

http://www.airflowresearch.com/articles/article11/A11-P1.htm

I would go with the AFRs, just my $.02 worth.

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Pics of my 69, UPDATED (http://webpages.charter.net/gulb93/index.htm)

[This message has been edited by 69ProTouring (edited 07-11-2002).]

Well,it sounds like AFRs are the way to go. I'm debating on what size runners for my 350. The reason I was thinking 195s is because the next motor I want to build for my camaro is a 406,and I was concerned if I went smaller I would not be able to use the heads on my next motor,and I won't have another 1200 to drop on another set.Will 195s still function well with that big of runners on a 350? Or would I get better HP/Torque #'s switching to a smaller runner ??

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69 Camaro rolling chassis at the moment

The 195's would be perfect for either a 350 or 406 IMO. You don't need a huge runner on a 406 to make great power anyway unless you plan on revving it to 7 grand.

[This message has been edited by Eric68 (edited 07-11-2002).]

I contacted AFR regarding headers for the 195cc heads,and they said that the "D" shaped ports won't line up with the dynomax cerama coated headers I have,the bottom corners are cut off,but he said I could still run them.He said it is because they are 1 5/8" headers.Are 1 5/8" better for my combo or should I go ahead and move up to 1 3/4" .How much of a difference would I see in low end torque,performance,etc?