Proformance Unlimited's Pontiac 455-425hp crate engine. Check us out on the web at http://www.proformanceunlimited.com. 800-267-3940
You can view our complete Pontiac engine line at the following link: http://www.proformanceunlimited.com/pontiac.html
Proformance Unlimited is well known for it's custom designs. If you are restoring your early Pontiac we can upgrade the horse power and still keep it looking original.
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 questions.
Live Run 327 Chevy
Chevy 327-375hp crate engine. Visit us on the web at
http://www.proformanceunlimited.com or call us at 800-267-3940
Our staff is available M-F 8am-5pm to assist you with your crate engine
Pontiac 461 Stroker On Test Stand SEE END!
LAST 10 SECONDS OF VIDEO ARE BEST!! Here is my Pontiac 461 Stroker with
Open Race Headers on home built Dyno test stand. This engine
features Edelbrock heads, Hooker Supercomp Roundport Headers, and a few
other tricks. Makes 535hp, 595/ftlb tourque. Now installed in my black 69
PONTIAC 455 UNLEASHED!!!!
I BUILD THEM BIG!!!!!!!!!!!!!!!!!!!!!!
MORE POWER THAN COMMON SENSE!!!!!!!!!!
TURN UP THE BASS TO HEAR THE ROAR!!!!!
PONTIAC - "The Super Duty Story" Part 1 of 3
Pontiac had an SD engine program in the late 50s early 60s, and
later/briefly again in 1973/74 with the SD455. This video is regarding the
FIRST Super Duty program.---In only a few years time during the late 50s
early 60s, Pontiac MORE THAN DOUBLED their V8's horsepower output (described
in this video), while using/keeping the same V8 engine block they used thru
1955-81. Even though the same block was kept, from 1955-62 the cubic inch
displacement grew much larger than the initial 287 cuber it started as in
1955. It grew to a 317 347 370 389 and finally a 421 cuber in 1962. It
eventually maxed out at 455 cubes in 1970. By 1970 ALL the other GM
divisions were producing engines at 454 or 455 cubes (500 for Cadillac).
PONTIAC WAS THE ONLY DIVISION still using the same block they used in the
1950s on engines that had a much smaller displacement -- 287 cubes. The
1955 287 displacement would remain the smallest displacement ever used in
the Pontiac V8 block all the way until 1980/81 when a 265V8 was produced.
Since less durability was required for the smaller displacement, the block
was decked/butchered/lightened on the 265/301v8s of 1980/81. Prior to 1980
the block had never been decked/butchered/lightened. The 1980/81 265/301v8
blocks were about 200 pounds lighter than the 1955-79 blocks, and only 25
pounds heavier than a Buick 231V6.
PONTIAC - stock Pontiac Super Duty 421v8/405hp vs stock Chevy 409v8/409hp on DYNO
WATCH THE VID TO SEE HOW CLOSE THEY Dyno TO THEIR FACTORY
405hp/409hp ratings. Growing up.....Pontiac/Oldsmobile old timers/EXPERTS
who taught me most of what I know, often told me Chevy rated their horsepower in a more
optimistic way than say Oldsmobile or Pontiac. I've even heard Pontiac
rated/tested their engines in a 100 degree room, compared to Chevy in a 60
degree room. These Dyno results seem to reflect
that some of what I heard was true. Both of these engines are great, but
the results do seem to show that Pontiac was not rating their horsepower worrying if it
would cause "songs to be written" about their engines .... like the great
song "She's real fine my 409"--(Chevy).
Tony Bromley's 400 to 460 stroke Pontiac Dyno Pull | QMP Racing
550 torque @ 5800rpm
535hp @ 4000rpm
For those of you paying attention and noticed the numbers aren't the same
on the screenshot, its because we made another few runs, but didn't tape
them. We'll upload a pic soon.
QMP Racing is located in Chatsworth, CA
Check out our website: www.qmpracing.com
Like us: facebook.com/qmpracing
qmp racing quarter mile race car engine motor custom high performance
chatsworth California hp horse power torque trq Dyno rpm turbo drag Exhaust run Boost psi dragster raceway nitro Nitrous super Supercharger muscle burnout idle motorsports Mustang cam Ford hydraulic
Street pontiac Cars Supra "Drag Racing" Pontiac Shelby Dodge Twin Stock
Mazda Ls1 Motorcycle Bike
Live Run Ford 302-300hp by Proformance Unlimited Custom Crate Engines
Whether your vehicle is a Mustang, Fairlane, Thunderbird, or
any 60's muscle car; at Proformance Unlimited we are here to help design
and build the combination that best suits your knowledge level and over all
experience, so your vehicle will out perform your expectations. Please
browse our engine combinations listed below. Proformance Unlimited is best
known for our precision custom designs. If you have any questions and would
like Proformance Unlimited to build your next engine feel free to call
Doug or Steve.
Platinum Bandit New 455 Stroker Motor - 580HP
This is a video of the new motor we build with Butler Performance, to be
customized as a high Horse Power motor that was designed to drive on the
road and use 89 Octaine Fuel. With the 60 over 455 1971 Pontiac Block, it
was stroked to 474 and with a combination of multiple components, 10:1
compression, we were able to acheave a 580HP engine that you can drive
around town, across country, etc. using 89 Octaine gas! Look for it to be
featured in an upcoming High Performance Pontiac Magazine for full
details... Build your own Monster Motor and join us on the Bandit Run next
1969 Pontiac GTO Judge, 625 hp 455, 10 sec. Drag Race Car
This is a short video with some of the best clips from my other GTO videos.
If you want more details about the car, it's construction and evolution,
check out my first/oldest GTO video (its 7:02 long). I hope you enjoy this
video and Thanks for watching.