Hey Cap'n,
I don't know where you get your numbers from to make this claim, but
I have recently heard from an extremely knowledgeable and well known
source that the aluminum head does NOT flow as good as a stock cast
iron head and that if the extra money spent on the aluminum head
invested in even mild porting of a stock head with Rimflow valves
would perform much better. I only recently heard this and was
surprised myself, but the credibility of this individual I think is
without question. If you have some factual data to back up your
claim, I'd like to hear about it.
Gerard
At 9:35 PM -0400 8/24/03, Robert E. Shlafer wrote:
>Hey, Bob....consider.....
>
>That aluminum head is not only
>lighter, it also flows around 30%
>better than stock, runs cooler, uses 12mm
>plugs due to a "centered" plug in the
>combustion chamber (more even burn
>across the piston) and comes with
>hardened seats.
>
>However, it also comes
>stock with 23.5cc combustion chambers
>but there is plenty of metal to bring it down to the stock iron head's
>capacity of
>21cc (or whatever your iron head has got)
>to maintain your current compression
>ratio.
>
>Thin flange block or not, considering the
>state of tune of your 1293, the aluminum
>head might make a real nice addition in
>terms of better performance, considering
>you have to do a number on the current
>iron head anyway?
>
>
>
>
>Cap'n. Bob
> '60 :{)
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