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.
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.
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)
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
Removing my Chevy 350 motor and tranny from my '72 El Camino
Yanking out my 350/th350 from my '72 El Camino. Everything was prepped
before hand - radiator pulled out, headers/spark plugs removed, power
steering unbolted and bungeed, ignition taken out, motor mount bolts
removed, driveshaft taken out, crossmember removed, tranny jacked and
prepped. This is the end product of the heart transplant. A 454/th400 will
be soon be installed and roaring.
Pontiac Banshee A Longer Look
The Banshee was a vision for what the Firebird could become. Of course,
this concept car could never be built exactly, too low on the road and it
wouldn't pass the safety and crash tests, but it was exciting. It
demonstrated that the problem with GM cars didn't sit on the designers'
shoulders. They were more than capable of dreaming up engaging and fun
vehicles that would set imaginations on fire.