> the tunnel port heads fit ANY Pontiac engine- from 389-400-421-428-455
> all Pontiac blocks are the same, they only differ in main bearing size
> and bore/stroke. Any heads will interchange from 1955 to 1979
> the tunnel ports will even bolt onto the earlier 326-350 Pontiac
> engines, but will be valve shrouded due to smaller bore size.
> now, about getting those facts straight- send a valid email so you can
> see the pictures- I'll even send pics of the engine being assembled.
> question- what kind of car is your daily driver ?
> I think I smell some rice on this group
Ok, Ill bite, but just this once.
The tunnel port heads are what differientiates the motor, the heads are
based on the TP design from 1969, but will not, I repeat, NOT turn your
engine into a 455TP, sorry, so your contention that you have a TP 455
goes right out the window. The fact ytou have probably had someone build
your engines for you, and that they have fed you a load of bullshgit
since 1981 makes you an even bigger dupe. 389 are there own basic
design, then the next stand alone is the 421, then the 428 (remember,
not just a Ford displacement number), then we run to ther 350/400/455
blocks (again, not all are the same, especially depending on the year it
Sounds like you've been surfing the web
for information, as bore and stroke is not the only differences between
the 389-455 engine design, if you think it is, then your greatly
mistaken(you need to dig much deeper than just the web to know exactly
what those differences are. I have an indepth knowledge of these
engines, as I've hand built any number for both myself, and my clients
over the years.........I shall not do your homework for you, the fact
that your wrong and cannot figure it out yourself is what makes this the
funniest thing I've heard to date from you.
Valid email, what makes you think my email address is not valid?
Daily driver, that depends on what day, it could be my Expedition, it
could be my 68 Mustang convertible, it could be my 73 Mustang
convertible, it could be my 1971 Boss 351 Mustang, it could be my ERA BB
Cobra replica, or it could be my 1982 Mustang GT road racer (sold my
Jeep wrangler this past week).....Or it could be my wife's Sebring
convertible(ug, I know, a chrysler product, but it does run well, and
she does not have to worry about me selling out from under her..Why,
because nobody else wants it........But thanks for asking dweeb........
Consider yourself put on ice, as you have nothing more to add that would
make yourself look or feel self important.