[DeTomaso] http://www.mustangsandmore.com/ubb/351Ctips.html

Charles Engles cengles at cox.net
Sun Oct 24 14:29:50 EDT 2010


Dear Rob,


              I am enclosing a link to Dan Jones' collection of 351C engine
tips.   I found it extremely helpful with my first engine build.


http://www.mustangsandmore.com/ubb/351Ctips.html


          Regarding the port stuffers:  IMHO, unless they are matched to
your intake manifold runner, then they will be a major disappointment.  The
finished "stuffed" intake port needs to be the same size as the intake
manifold runner for optimal results.

          Regarding the age of your allegedly stock engine:  Will is correct
that you very likely have a suboptimal cam for high performance and you very
likely have a very old low performance timing chain set.

          Regarding intake and manifold changes: This could give you an
increment of improvement, but it is best sorted on a chassis dyno, IMHO.

         Regarding 2V heads:  2V aussie heads can indeed give you more
power.   However, their potential would be retarded without the optimal
intake manifold, plus a modern valve train and a cam chosen to match the
flow and velocity characteristics of Aussie heads.


          Regarding phase one, phase two and phase three engine mods:  they
are logical incremental levels of work and engine improvement.  However,
IMHO, unless you are very, very certain that you're going to stop at phase
one,  then simply removing the engine and progressing onward to phases two
and/or three makes a whole lot of sense.   Trying phases one through three
with the engine in the car can be done, but is a real PITA.  Once the engine
is out, then *anything* done to and with the engine becomes much, much
easier.   With the engine out, it can be dynoed before re-installation and
benefit from any corrections that may be needed and from dyno tuning for
optimal carb jets, timing, etc, etc.


          Finally, for best results the entire engine package has to be
optimized so that all the parts play well together and compliment each
other.   Best results are rarely ever obtained by bolting on any single
part.  Everything affects everything else is very true.

         
                      Warmest regards, Chuck Engles       








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