First start up of my bored out 400 from 1979 trans am. Now a 406 with comp cams extreme energy hydraulic cam and lifters, roller timing chain and roller rockers. Lightened and balanced Scat crank. Ignition upgraded to MSD HEI with Accel 8.8 mm sprial core wires. 6X-4 heads ported and port matched to ported factory dual plane intake manifold. Factory 750 CFM Quadrajet reworked by Cliff Ruggles performance.
Dyno pull to follow
Quadrajet air leak fix and warped air horn repair tutorial.
How to identify a Quadrajet with a warped air horn without diss assembly or
running it on a car. These tips would have saved me time and money which is
why I made this video. I also discus how to repair a warped air horn and
prevent your air horn from warping in the first place. If you have a
whistling noise just off idle then you got some work to do. You will never
get your engine tuned right, your cold start performing or decent fuel
economy unless your four barrel carburetor is just right. Special thanks to
Cliff Ruggles for his book Rochester Quadrajet carburetors and to my
brother Adrian who spent hours on tuning and fitting.
See this video for description of the technique I used to straighten a
warped air horn.
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
Pontiac 400 break in
Number matching engine. Pontiac 400 cid. Break in of camshaft.
Formula 1973 with non stock color ( it supposed to be Burma Brown)
Sehr Performance Machine / Randi's 400 Pontiac
Randi came to us with a 400 Pontiac project for his 1968 Firebird. He
didn't want to go crazy on the build but he wanted something that would
give him performance that is better than original.
With that goal in mind Scott did some custom porting on his heads, upgraded
his valve train and went with a Custom COMP cam and lifters and aluminum
roller rockers. We maintained his complete original rotating assembly but
had to re-balance his crankshaft, it had been poorly balanced sometime in
the past and was out by 127 grams on one end and 181 grams on the other. A
single plane intake with a 780 Quick Fuel carb got it breathing and the
fire is lit with a Flamethrower ignition package. Custom cut and fitted
8mm plug wires are standard equipment here at Sehr. Headman custom coated
headers will be added at installation time.
The results were a satisfying 543.5 Hp @ 5500rpm and torque reading of
519.8 @ 5400rpm. Corrected to sea level the numbers are 577 Hp and 551 Tq
with nearly 400 lb of torque at 3500rpm.
The First time my 400 Big Block got started.
1971 camaro with pontiac 400
1971 Camaro with
pontiac 400 engine. Comp roller cam, roller, lifters and scorpion roller
rockers. 5C heads ported and polished. TH400 with reverse manual valve
body. Holley 800cfm double pumper with aluminum intake. This is my newer
project that i recently redid the interior on. Leave comments or questions
American Muscle Car - S02E02 - 1959-1963 Pontiac 421 Super Duty
The American Musclecar series relives that incredible time when Detroit
produced the most outrageous cars ever to hit the street. From the car that
started it all, the 1964 Pontiac GTO, experience the glory days of power
and speed through the stories of those who lived and breathed it then. This
2-disc set features twelve half-hour episodes devoted to each extraordinary
muscle car from that magical era.
Pontiac Firebird Trans Am 1959-1963
Pontiac 421 Super Duty
Ford Fairlane GT & Torino Talladega
427 Cobra 1963-1967
Chevrolet Corvette Camaro Z/28
Dodge Daytona and Plymouth Superbird
The Mopar Super Stockers
American Motors AMX
Dodge Challenger TA and Plymouth AAR 'Cuda
Buick Regal GNX
1955-1957 Chevrolet Bel Air
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).
Pontiac 400 for sale Edelbrock heads, comp cam, quick fuel carb, be cool radiator
This 400 was rebuilt 18 months ago. It has 3800 miles on it. It has
Edelbrock heads, comp cams 305h magnum cam and edelbrock lifters, cloyes
double roller timing chain, arma-steel crank, scat forged rods, ross forged
pistons +.030, melling ram air 4 high pressure oil pump, clevite bearings,
harland sharp 1:65 roller rockers, edelbrock torker II intake, quick fuel
850 double pumper carb, also includes the be cool radiator with the