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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.


 


More Videos...


Sehr Performance Machine / Ryan's 350 Pontiac
Ryan dropped off his 350 Pontiac long block along with a set of 400 Pontiac Ram Air cylinder heads, an Edelbrock intake and his Holley carb. He wanted us to put it together for his '69 Firebird. His engine came to us with blow-by issues from a broken piston. First off the cylinders had to be relieved to clear the valves on the Ram Air heads. The heads were milled to reduce chamber size and valve to block clearance was checked one more time. All of his parts were inspected and magnafluxed to be sure we were starting off with serviceable parts and the clearances were brought back to low side of factory tolerances, a new custom COMP cam and a distributor curve kit were added along with some other touches, the engine was painted Pontiac Blue and bolted to our Dyno. Ryan is very happy with the end results and is looking forward to getting it back in his car and having some fun with it.





Pontiac 455 First Dyno Pull Hot Rod Tempest Lunati Voodoo Cam
My Pontiac 455 fresh build. Pro Gram Billet 4 bolt mains, Eagle H Beam Rods, 6095 Lunati Voodoo Cam Valve Lift .527 INT 548 EXH; Duration 284 INT 292 EXH., Pro Form 950 CFM Carb, 1971 Super Duty Round Port HO "197" castings #481768; Fully Ported; 2.11/1.77 valves; Milled .055; 103 cc's; Lazer Valve Springs H-O Racing Enterprises) 1.770-1.785 installed height; 7/16 screw in studs; 11/32 pushrods; Pushrod Guide plate holes elongated for clearance; 1.65 Harlan Sharp Roller Rockers; ARP head Stud Kit., Doug Nash Warrior Intake port matched, JE forged pistons, 10.3:1 compression. 500HP 500 Ft pounds of torque. Built by Blackshear Racing, Brookfield, Oh. Dynoed at Tubs, Austintown, Oh.





Tony Bromley's 400 to 460 stroke Pontiac Dyno Pull | QMP Racing
Numbers: 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 Tags: 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





'68 Pontiac Firebird ...Pontiac 400...Built by Proformance Unlimited
http://www.customcrateengines.com/ Live run of a Pontiac 400 engine built by Proformance Unlimited...engine will be run in a '68 Pontiac Firebird You can view this engine package along with available upgrades at the following link: http://www.proformanceunlimited.com/specs/pontiac_400_375tk.html Our staff is available Monday-Friday 8am-5pm to answer any of your engine questions.





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!!!





Pontiac 350 - 350 Horsepower For Less Than $500.00
A short video describing the modifications done to the 65,000 original mile Pontiac 350 engine in my 1975 Formula. Using heads, cam, pushrods, rocker arms and an intake that I had laying around, this Pontiac 350 developed 353 horsepower and 385 lbs/ft of Torque, for less than $500.00 invested.





GTO First Start Up
Having a conversation with Darrel Arvizo, AKA "Slo-Moe", about his sweet GTO build and NOT getting a straight answer out of him on anything. I'm sure that engine puts out over 1000 horse power, who's he tryin to kid... LOL. Anyway, this is what I do know.... The chassis was built by Rob Lindsay at R.J. Fabrication, engine build by Rock & Roll Engineering and NHRA Super Stock Indy winner Bruce Fulper, body work done by Tony "Cricket Fingers" Griffin, C&R Radiator, APS-Racing carb spacer, CCP control arms, MSD Ignition and a lot of hard work by Slo Moe. Hurry up and Git-R-Done!





Pontiac GTO 400 Engine 1967 Dyno Session Motor Test
Completely built stock type Pontiac engine by bakersfieldcrateengine.com This engine made over 400 HP and 500 TQ All stock parts except for the internals





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.





Pontiac 400
The First time my 400 Big Block got started.





Pontiac 400/461 Stroker Cam Break-In
Pontiac 400 stroked to 461. X-Pipe Spintech Exhaust, Cam Break-In





Pump Gas 440 cid Pontiac engine by Tin Indian Performance for the CF-71 Freedom Bird idel on dyno
This is the 440 cid Pontiac engine we build to Ty Ingle's CF-71 Freedom Bird. The engine is based off a 400 cid pontiac block. Pro-Warrior 4" stroke crank and Pro-Warrior 6.8 long rod were used on the bottom end along with a set of KB forged pistons. A Tin Indian Performance custom ground Comp Cams solid roller was also used with Crower solid roller lifters. The engine is topped off with Kauffman Racing Equipments new North Wind intake manifold and a custom Pro Systems carb. The combo pulled 11" of vac at 850 rpm! It made 590 hp and 550 ft lbs of torque. ALL ON PUMP GAS!!!





1968 Pontiac Firebird Restoration Process
Here is a 10 min video compilation of shots and clips taken during my 4 year restoration of my 1968 Pontiac Firebird.





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 400 engine after rebuild
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.





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