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Proformance Unlimited Live Run Pontiac 455-425hp

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.


 


More Videos...


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.





Horsepower TV - Pontiac 455 ( 474 ) - 612 Pump Gas HP - Dyno Pull
Thanks to the guys on HP TV !!!!! - 12/30/2000 - Factory Distributor - Here you go Pontiac People redid this for your viewing pleasure !!!! .





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 purchase.





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 GTO 4spd.





PONTIAC 455 UNLEASHED!!!!
www.autoappraiser.ca 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.





BIG BLOCK BATTLE! TRANS AM 455 OLDS Vs TRANS AM 474 PONTIAC
LEFT LANE 11.6@114 , RIGHT LANE 12.4@110





Proformance Unlimited's 69 Pontiac GTO 400 Crate Engine Dyno Run
Proformance Unlimiteds Pontiac 400 crate engine live engine run....all of our horsepower is Dyno tested and proven....visit us on the web at www.proformanceunlimited.com or contact us at 800-267-3940





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
Numbers: 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 Tags: 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
http://www.proformanceunlimited.com/ford.html 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 year!





Live Run Ford 390ci built by Proformance Unlimited...The Crate Engine Experts
Proformance Unlimited's Ford 390 live run engine. Check us out on the web at http://www.proformanceunlimited.com 800-267-3940 You can also email us at info@proformanceunlimited.com





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.





Comp Cams XE276 Extreme Energy in a Pontiac 455 at idle nice lope
Here is a video of a comp cams XE276 cam shaft for a pontiac 455 in my 76 trans am. Nice lope. No problems with brakes either and a seriously potent cam. With a 2.41 rear end and stock coverter it would do a 200 ft burnout.





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