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)
1969 Pontiac Firebird "Routy" Engine Install and First Start Video V8TV
http://www.v8tvshow.com - The time came to install the rebuilt 1973 Pontiac
400 into our '69 Firebird. It's running a rebuilt bottom end, roller
rockers, #16 Pontiac iron heads, a Professional Products intake manifold,
MSD ignition, h Holley carb, Royal Purple break-in oil & filter, and
Eastwood coated long-branch Exhaust
manifolds leading to MagnaFlow Exhaust. Also shown is the Vintage Air
compressor and accessories from Classic Industries.
Proformance Unlimited's Pontiac 400...Live engine run
Pontiac 400 built by Proformance Unlimited Live Run
You can view this engine package at the following link:
Pontiac 400 with 450 HP engine package with Edelbrock aluminum heads can be
custom designed to your specific needs. All engines can be custom painted
to match your vehicle at your request. We can outfit your engine with the
exclusive March Performance serpentine belt system. We can also assist you
in choosing the proper transmission and stall speed converter combination
for your vehicle and have it shipped directly to you as your performance
crate engine is being built.
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.
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
PONTIAC 1970 formula 400
1970 formula 400, complete engine rebuilding, YS block, #13 heads, forged
rods and pistons, RA3 cam (068), iron intake, home made 1968 Q-JET
converted to electric choke, RA4 headers, complete 2,5" Exhaust.