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.
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
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.
1967 Tempest new camshaft Ultra Dyne 220/226 @ .050 in Pontiac 400
Traded my friend Robert for this camshaft. Came already broken in with a
matched set of lifters. I swapped it out over the last month or so. I
still have to install the temp gauge in the car, so I am not running it
that long yet. Put around 2 miles on it. PULLS!!!! Hard!!! I have to find
the coil bind on the springs. might have just increased redline!!!
71 455 HO Trans Am at the Dyno Shop
This is a 455 HO 4spd 1971 Trans Am that is in the last stages of a
complete restoration. We have taken it to the Dyno shop to dial in the numbers
matching motor after we did a complete rebuild on it for our client.
Pulled around 415 HP to the flywheel. www.RESTOREaMUSCLECAR.com
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:
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.
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.
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).
1969 pontiac lemans 455
Here's a video of my 69 lemans with rebuilt 455 bored .040 over (464),
speed pro pistons, edelbrock rpm camshaft, 6x-8 heads ported, comp cams
rollertip rockers, edelbrock valve springs, procomp intake, 750cfm
edelbrock carb, and flowtech headders. This combo makes great power and I
love the torque this monster makes. Next upgrade will be edelbrock aluminum
heads to really wake this beast up! Please comment on engine combo, body,
and suggestions. Thanx