Re: [Amc-list] t96, torque, revvy sixes, was Re: more information on my 63 770

[Wrambler242@xxxxxxxxxxx]

I'm thinking Rhodes lifters may be a good thing to try in a engine built for rpm.
If you don't mind the clatter...
Brian Seeley has Andrews old engine already built for such a purpose. It's back in Mass though...

--
Mark Price
Morgantown, WV
1969 AMC Rambler, 4.0L, EFI, T-5
" I was different before people dared to be different" 

 -------------- Original message ----------------------
From: Tom Jennings <tomj@xxxxxxx>
> On Monday 06 August 2007 17:34:53 Matt Haas wrote:
> 
> > I can attest to that. My 67 American has a 199 and an automatic which
> > makes it a slug around town. Once it's up near highway speed, it's
> > actually okay. The 232 in my 68 American (which was not rebuilt to stock
> > specs) with a 3 speed manual is a totally different beast. It's really
> > torquey. However, I don't think you can rev the wee out of either of
> > them when not in neutral. The 68 tops out at 85 mph and if memory serves
> > (which means I'm probably wrong), that's not much over 4000 RPM. Both
> > cars are great highway cruisers. They are both happy around 70 MPH and
> > when I took the 68 to Kenosha in 2004, I'm not sure I did much slower
> > than that until I got to Chicago.
> 
> Sounds like my experience. I didn't mean to imply that revving is some new way 
> to make HP. Just that, in the narrow range of cars that have fairly 
> lightweight drivelines, the ability of our modest six to rev uysefully 
> another 1000 rpm (to 4000 or maybe 4500) is inexpensive "low hanging fruit". 
> It ain't a V8 conversion, but some fairly easy head work could really gain a 
> bunch of effective HP without serious driveline changes.
> 
> I think there's two things limiting RPMs on the 64-up six (up until balance 
> issues matter, which I assume is 5000 up). Valve train mechanical issues and 
> camming. The camming you buy a new lumpy stick and install it. The mech stuff 
> you mildly port and fiddle and leave as-is. 
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