This is engine for my new 1977 Trans Am "Racer". Specs: '73 block with stock type crank (.010), pistons (.030) and rods,'69 heads No. 46 with no mods, stock '69 intake manifold, Summit headers, CompCam 268 HE complete camshaft with stronger valve springs and 1.6 roller rockers.
The First time my 400 Big Block got started.
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.
572 Cu In Streetable Big Block With 750HP
Live engine run of a Chevy 572 big block...engine will be run in a '66
Chevy Chevelle...Proformance Unlimited...There is no other
Our staff is available to assist you with any questions you may have
Monday-Friday 8am-5pm 800-267-3940 or via email
We look forward to speaking with you.
Pt 7 & Final 389 Resurrection
Edited on the old machine, as the editor is not up and running yet. Had to
start from square one, so the only music you get is intro and out theme
with everything in the middle provided by the Internal Combustion Symphony
Orchestra featuring the Open Exhaust
Expect delays to continue. Replaced the board on the hard drive of the
editor and it's saved, but still waiting for a power supply to arrive. This
older machine likes to crash the program.
Don't know what I'll edit next. I have stuff almost 3 years old that I
haven't done! Just wanted to get the Whitey and Jimmy Blue projects up to
speed. (Which I don't, really)
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
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