I would (at least) be very interested in seeing pics of this head. My friend
Steve at Progressive Automotive is one of the best head developers in the
country, bar none. We have kicked around the idea of welding up the ports of a
U20 and raising them a bit to improve flow (although a U20 head flows pretty
good as it is for 1960's technology). It would be fun to see what the factory
did...
Greg Burrows
Howard Fletcher wrote:
> Hi racers,
>
> A friend of mine has a genuine U20 FIA head for sale.
> It was in a race car in Australia about 15 years ago for a couple of
> meetings but I don't think the guys had the technology to get it going
> properly
> It would also need a fairly radical cam grind
> It comes with inlet manifold for 50mm solex but doesn't come with the carbs
> (50's are mandatory for it to work properly).
>
> It is definitely a different mould from the std heads I have seen, it seems
> to have been part derived
> from a smog head - but where the plugs go are just moldings of the head.
>
> the ports are in different positions to the std head (I have seen them side
> by side)
>
> The valves are oversize.
>
> No work seems to have been done to this head at all, since the original
> casting. the ports are still rough.
> It flows to 230+ hp before cleaning up. or any intelligent gas flow work -
> estimate could give 245bhp out of a U20
>
> Anyone interested in purchasing - we can send / publish photos? - I will
> have to do it, my friend doesn't have a scanner.
>
> But also has anyone encountered the U20 FIA head before or know much about
> it ?
>
> Regards,
>
> Howard
>
> /// datsun-roadsters@autox.team.net mailing list
> /// Send admin requests to majordomo@autox.team.net or go to
> /// http://www.team.net/cgi-bin/majorcool
> /// Send list postings to datsun-roadsters@autox.team.net
/// datsun-roadsters@autox.team.net mailing list
|