The LeMans (on the left) has a mild, non-rebuilt 455 with ported & polished 6X heads, c. 9:1 compression, Edelbrock Performer intake, Holley 800 Street Avenger, Comp XE274 cam, making maybe 300-350 horsepower. The Grand Am (right) has a .030 over 455 with Edelbrock heads (87 cc chambers), 10:1 compression, same Comp cam but with 1:65 roller rockers, slightly better Exhaust (H-pipe), Edelbrock Performer RPM intake and Edelbrock 750 carb. About 500 horsepower at the flywheel. The heads make all the difference. The Grand Am has the Flowmaster American Thunder Exhaust system, which has the 50-series mufflers. LeMans has a Summit Exhaust system, which was cheap and went on nice & easy.
389 Pontiac On Simtester
Watch John Edwards as he describes the Simtesting of a 389 Pontiac GTO
engine at Costa Mesa R&D Automotive Machine. (949) 631-6376 Be sure to
'Click' and SUBSCRIBE.
1974 Trans Am Super Duty 455 Four-Speed FUN
This is a very rare 1974 Pontiac Trans Am Super Duty. Less than 1,000 of
this 455-powered, specially built monsters were produced from 73-74. Today
they command ever increasing prices approaching six figures.
Pontiac Banshee A Longer Look
The Banshee was a vision for what the Firebird could become. Of course,
this concept car could never be built exactly, too low on the road and it
wouldn't pass the safety and crash tests, but it was exciting. It
demonstrated that the problem with GM cars didn't sit on the designers'
shoulders. They were more than capable of dreaming up engaging and fun
vehicles that would set imaginations on fire.
Camaro Z28 messing with 455 GTO on the street
Late-Model Camaro Z28
with bolt-ons messing with a classic 455 swapped GTO.
The GTO jams it and then one of the passengers thought they were being
tailed by an unmarked B4C (special service police) Camaro holding a radar gun (video
camera, lol) and you can notice the nervous and unsure look on his face as
we roll beside, then his complete and total relief once he recognized a
couple old pals in a regular Camaro, lol.
(This LT1 Camaro made
280hp at the wheels and ran 13.1 at Mason Dixon Dragstrip)
This footage was shot way back, many years ago, with an old junky analog
camera, so apologize for the poor video quality.
Produced by nedaCFilms / Mustang-Town.com & V8ponycars.com
'72 Pontiac Trans Am 455 HO Burnout
As I was walking along the road I was passed by the car followed by the
mysterious fog... I wondered what that might have been...
The answer is... the Bandit and his T/A are back in town!!!!!!
Pontiac 350 - 350 Horsepower For Less Than $500.00
A short video describing the modifications done to the 65,000 original mile
Pontiac 350 engine in my 1975 Formula. Using heads, cam, pushrods, rocker
arms and an intake that I had laying around, this Pontiac 350 developed 353
horsepower and 385
lbs/ft of Torque, for less than $500.00 invested.
Proformance Unlimited's 455 Pontiac Crate Engine
Pontiac 455 Crate Engine Built By http://www.proformanceunlimited.com/
You can view our Pontiac engine line at the following link:
Whether your vehicle is a GTO, Fire Bird, Trans Am, Lemans, or a timeless
classic, here at Pro-formance Unlimited we are here to help design and
build the engine combination that will match you with your vehicle. Please
browse our crate engines listed below or custom design one of your own.
From that special built stroker engine to that turn-key drop in ready crate
engine, call Doug or Steve we will be happy to answer any of your
Chevy, Olds, Pontiac and Buick V8 engines are not the same!
Evidently a segment of the automotive enthusiast population does not
believe that the four main GM divisions had their own versions of a V8. In
addition there may be people who simply never knew that fact.
In this video I show photos of a 350 cid engine from Buick, Oldsmobile,
Pontiac and Chevrolet and highlight the differences in each. Buick and
Pontiac V8 engines went out of production in 1980, Oldsmobile's in 1990 and
of course the Chevy versions lasted a lot longer because they were cheaper
to produce and easier to smog/mpg certify.
I challenge anyone to video themselves removing a Chevy SBC head and then
installing it on a Pontiac, Olds or Buick engine.
1976 Pontiac Trans Am with 455 testing out the new engine
In car video of a 1976 Pontiac Trans Am with a 455 in it. This has one of
the comp cams extreme 276 cams in it. Probably the most potent cam I have
used in any of my pontiac engines and still maintained excellent street
manners. Unfortunately, one of the rod bearings did not hold up as well.
The purpose of these runs was to try to get the car to blow up if it was
going to. It has a slight noise in it that I couldn't figure out. Wound up
being top rod bearing on number 7. Was torn down never to be assembled
again. Car was awesome though. Sold to Volo auto sales in Chicago. They
painted it and sold it as a 50th anniversary clone car for $20k more than
they paid me for it.
1979 Pontiac Trans Am 455 H.O. tour
This is a video of the 1979 Pontiac Trans Am H.O. that me and my dad built.
Very powerful car. It has not been Dynoed yet or run on the drag
strip. But it has done a few burnouts ;)
PONTIAC - The Glory Years! Part 1 of 5
(1956-93). Some great basic Pontiac history, along with the CARS and PEOPLE
(Bunkie Knudsen, John Delorean, Jim Wangers, Pete Estes, etc) who made
Pontiac great in those years. In 1956 Bunkie Knudsen was hired as Pontiac's
General Manager. He was told by GM "Turn Pontiac around in 5 years or the
division is gone". Within about a year he quickly assembled a great team.
Knudsen was fortunate enough to pick up engineer John Delorean from Packard
when that company closed, Delorean later became the father of the GTO and
MANY Pontiac Innovations. Knudsen was also fortunate enough to lure a
brilliant "Olds Rocket V8" engineer away from Oldsmobile---Pete Estes who
helped the Pontiac V8 breath as well as it could.