Re: V-8 Fuel Milage

[Tom Jennings <tomj@xxxxxxx>]

On Wed, 11 May 2005, Bruce Hevner wrote:

> Come to think of it I DID do some head swapping on my 343 Javelin one time.
> I had taken the OE heads off to do some work on them and needed to get the
> car rolling again. All I had was a set of 290 heads I had taken in trade
> from a 290 AMX that I had installed a set of big valve heads on.
> They were only on the car for a few weeks so I don't remember much other
> than it made a big difference in response and fuel mileage went up a few
> points (who cared back in 1969!!). I DO remember that I had problems getting
> the thing to shift at full throttle. I had modified the auto trans to shift
> at about 5000 RPM and those heads cut it back so much it had trouble getting
> there! Once it got to about 4500 I would have to lift the throttle a little
> so it would shift. Probably would have been perfect with a stock trans.
>  I think MOST engines back then were really to much of a trade off of
> trying to be good at the bottom end AND top end too.

Wow... well I'm in no danger of doing this on my Hornet this year,
or even next, but I think I'll start reading TSMs and looking at
specs etc and think about an efficient 4000 rpm redline 360!

As a bonus, it's made out of parts no one wants (other than the
360 block). That appeals to me.