Proformance Unlimited's Pontiac 400...Live engine run

Pontiac 400 built by Proformance Unlimited Live Run http://www.proformanceunlimited.com/ You can view this engine package at the following link: http://www.proformanceunlimited.com/specs/pontiac_400_375tk.html 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.

More Videos...


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.





Proformance Unlimited Pontiac 461 Stroker
http://www.proformanceunlimited.com/ Live Run Of Proformance Unlimited's Pontiac 461 Stroker with 550hp...engine will be run in a '68 Pontiac Firebird





Splitter's 541 Inch Pontiac Engine V8TV-Video
http://www.v8tvshow.com - We turned to the Pontiac pros at Butler Performance for insight on building Splitter's street / strip / road course engine. This one has to do it all, so the parts need to be carefully chosen to get the job done. David Butler takes us through the parts and explaines his choices.





BEST PONTIAC 400
PONTIAC 400 GETTING DynoED 530 HP




Follow