Caution on the Trick Flows. They make the most HP for a street head, but the
twisted
wedge design is said to screw up the valve train geometry and result in problems
w/valve guides, noise, & premature wear. Go w/Edelbrocks--best quality. You
want the
small valves (1.9 & 1.6) so you won't have to notch your pistons. The 2.02s are
too
big, and give HP while taking away low-end torque. And torque is the "funnest"
thing
about a Tiger. It will appear once you ditch the 288 rear end gears.
Also, aluminum heads allow more compession w/o knock. Something about the
properties
of the metal.
UPS says mine will be here next Tuesday. Also, I was advised to use graphite
gaskets
w/aluminum heads.
Edelbrock has a web site where you can sign up for a free catalog. Good one,
too.
Al J.
Steve Laifman wrote:
> Derek,
>
> I haven't seen this, but you should check it out. The Twisted Wedge heads
>looked
> good, but I found out a few things talking to the racing guys. All aluminum
>heads
> are thicker than the iron one. Using roller rockers increase the valve cover
> height. Watch out for just how much clearance you have on the inner valve
>cover
> corners to fire wall. You can NOT mill these heads down to fit. They were
>made
> thicker because they are aluminum and they had to. Of all of them, the
>Edelbrock
> is closest.
>
> Ford just lost a huge settlement, and is replacing, or paying those who have
> replaced, their head gaskets - or lost their motors from blown ones - on
>their V6
> iron block with aluminum heads. The difference in expansion causes the
>gasket to
> start leaking, and disaster is just around the corner. There is a new gasket,
> steel or carbon fiber, or some such - and about $50, that is supposed to solve
> this.
>
> I was told that the Trick Flow does NOT use Threadserts, or Helicoils on the
> threaded aluminum holes where vital connections must go, like your bolts and
> studs, whereas Edlebrock does. If this is so, it would be a decisive
>difference
> to me.
>
> There are TWO versions of Edelbrock, mostly differing in runner and chamber
> volumes, as well as exhaust valve size. I believe the early 289 is the one
>you
> would want.
>
> This information is not validated by me, as I just am not considering the
>option,
> but you should look before you leap. They cost about the same.
>
> Steve
>
> --
> Steve Laifman < Find out what is most >
> B9472289 < important in your life >
> < and don't let it get away!>
>
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