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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.


 


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Pontiac 455 First Dyno Pull Hot Rod Tempest Lunati Voodoo Cam
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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.





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.





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.





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





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)





'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.





Pontiac Engine Break Down 301 to 455
Facts talk Pontiac Engines 301.303,326,350,400,389,421,455,482





Part1 1959 Pontiac 389 resurrection for "The Find" 1956 GMC 250 Dually
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Proformance Unlimited Pontiac 400 Motor Dyno Test
http://www.customcrateengines.com/index.php/400-pontiac-450hp.html Engine package specs: A seasoned 400 Pontiac block Bored And Honed With Deck Plate Mains Have Been Align Honed Block Has Been Decked Dura Bond Cam Bearings Installed Brass Freeze Plug And Oil Galley Kit Installed Block painted with 3 coats of high temp ceramic engine paint customers choice of color (have your engine custom painted to match your vehicle for an additional $300) A Precision Ground Micro Polished Cast Iron Crankshaft Clevite P Series Rod And Main Bearing Eagle I-beam Connecting Rods w/ARP rod bolts High Performance Pistons (Speed-Pro, Keith Black, SRP, Or Mahle) Performance Rings Hand Filed To Match Application New three piece true double roller timing set Comp Cams Custom Ground High Performance Street Camshaft With A Muscle Car Chop Set Of Tie-Bar Hydraulic Roller Lifters Edelbrock Performance Aluminum Cylinder Heads A Set Of High Performance Valve Springs And Retainers (To Match Camshaft) 7/16 Screw In Studs And Hardened Guide Plates ARP Head Bolts Manley Chrome Moly push rods Scorpion aluminum roller rockers Engine will be assembled with all new bolts High volume oil pump and screen Chrome oil pan Chrome dip stick and tube Timing cover A new valley pan Professional Products performance balancer Fel-pro performance gaskets The complete rotating assembly will be balanced Edelbrock Performer RPM intake manifold New chrome thermostat housing Edelbrock carburetor w/ electric choke New chrome air cleaner MSD Pro-Billet distributor MSD Blaster II coil and bracket MSD 6AL Ignition Control Box Auto-Lite spark plugs Custom fit Taylor 8mm ignition wires (color of choice black, red, blue, yellow, green, orange no extra charge) High flow water pump Chrome valve covers New chrome breather Fel-Pro Performance Gaskets Flex plate (for auto transmission) Engines are photo documented during the building process so you can see the quality of parts and workmanship that goes into your engine Each engine is tested, timing set and carburetor adjusted for optimum performance We video tape your live run engine and send you a copy





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!





HOT ROD TV: New Old Goat
A team of Southern California restoration experts are going to build a super car?  No! The kings of restoration are restoring a 1968 Pontiac GTO 400 to its original stock condition. They are taking this Old Goat and turning it back into the Gran Turismo Omologato.





Sehr Performance Machine / 229 cid V6 for Costa's Repair Lihue, HI
Our customer called all over to find a shop that would do a Chevy 229 V6 for his 1980 Malibu. He had to go 3800 miles to find a shop that was willing. We have really enjoyed the relationship that has developed during the coarse of this build. It's fun to work with someone who gets excited about what their doing. With a lot of custom head work, a custom COMP roller camshaft, and some other trick parts and machine work we were able to develop 474 lbs of torque and 503 horsepower.





Pontiac Performance Tips from Butler Performance V8TV
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Sehr Performance Machine / Marvin's 460 Ford
Marvin brought his engine to us to 'hop it up a bit' but still keep it legal for class that he pulls in and keep it reliable as well. Starting in the heads, we boiled them out cleaned and magnafluxed them before shot blasting. Next was a clean mill just to get things straight. A 5-angle valve job, fitting the guides and installing new Viton seals were next in the order of business. While we were at it we cleaned and magged his block and shot blasted the rods and block. His mains were out of wack and his crankshaft was bent so we did a line bore on the mains and fixed him up with a new crankshaft. Next in line was a clean mill on the deck surfaces and lifter bore grooves. Every part that went into Marvin's Ford was completely checked and those that didn't pass muster were replaced with quality new parts. No headers allowed in Marvin's class so we ran his iron Exhaust.





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