Engines
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- 467 Butler Performance Engine
- Butler 428 Core block
- 4.181 Bore, 4.250 stroke, 6.800 rod
- Stealth (logos removed) CNC Ported Edelbrock Heads *HEADS AND INTAKE CAN BE PAINTED ENGINE COLOR/ OPTIONAL*
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428 Block 4-Bolt Main With Butler CNC Billet Caps, Main Studs,
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Eagle Crank 4.250 Stroke, Forged
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Eagle Rods 6.800" 3D Rods
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BP Ross Pistons- Custom Flat Top
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Total Seal Rings
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C77/FMP Race Bearings
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BP Billet Gears and Chains
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Butler PRO M54DS Oil Pump
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Butler Custom Hyd Roller Cam
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Comp 85701 Hyd Roller Lifters
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BP Custom Pushrods 5/16 .116" Wall
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Powerbond SFI Damper
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Butler True Ratio 1.65 Aluminum Rockers
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Butler 87cc 325cfm CNC Ported Heads
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Ferrea 5000 Series Valves 2.19 in 1.77 ex
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Comp Valve Train Parts
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Milodon Oil Pan & Milodon Pickup
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Edelbrock Performer RPM Intake
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BP Aluminum Valley Pan
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Holley 850 Ultra Double Pumper Carb
- RobMc High Volume Fuel Pump
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High Flow Water Pump
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New Timing Cover
- IMI Butler Mini Starter
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MSD Pro Billet Ignition System
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Butler Custom Billet Pontiac Valve Covers
- March Styletrack Serpentine System
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1966-1970 Metallic Blue Paint
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Comes With Complete Blueprint Sheet
- Tested and dyno tuned
- Comes with Dyno Video, Dyno Sheet, and Tune
Take your Pontiac to the next level with a Butler Custom Procharger Serpentine Engine and Kits. We include all custom cnc plates, brackets, pulleys, procharger head unit, tensioners, and all necessary hardware (newly designed brackets in 2021)
Fits under the hood of most Pontiac cars.
900 Series Serpentine Engines produced over 900hp on pump gas
1200 Series Cog Engine produced over 1200hp on pump gas
Looking to keep that original look or not give away what you are running from first glance?
Butler Performance now offers the service to have all logos removed from aluminum cylinder heads. We can remove logos from the end of the cylinder heads and above the exhaust ports.
This service leaves the heads with a sleek, clean look and ready to paint for that original OEM look. We can even paint the heads for you in any of the colors we offer including exact paint matches for many Pontiacs.
The Stealth Option is available on all of our BP Custom Cylinder Heads or ask a sales person to add to Edelbrock out of box heads.
We offer these same stealth options such as logo removal ($50) and paint to any of our aftermarket intakes as well.
Take a look at a few recently completed Stealth cylinder heads.
Click Here to shop D-Port ported cylinder heads by Butler Performance
Click Here to shop Round-Port ported cylinder heads by Butler Performance
We had the customer's engine shipped to us and the parts were inventoried. What was usable was saved. We use what we can but replace the parts that need to be replaced after 40 years.
We then put the block and heads through what we call "The Butler Process". This process is our tried and true method of combining the old block and heads with the proper machining, quality performance parts, and meticulous assembling by experienced, professional engine builders. We then dyno test to ensure the performance meets our expectations.
In this build, we took the customers 389 block and bored and stroked it to a 453 cu.in. We specialize in stroking 389's, 421's, 400,s, or 455's up to 500 cu.in. and keep that stock appearing look.
The compression ratio was lowered to 9.4:1 for pump gas. Here the customer opted for porting the cast iron heads. Some choose aluminum heads where we remove all the logos and paint match it so it gives that factory original look that is hardly noticeable.
As you can see in the pictures, the block and heads are tested, cleaned, machined, blueprinted, cleaned again for paint, painted, then sent up for assembly and building.
During assembly, each step in our process is done with precision and consistency.
We upgraded this build with a Butler/Comp Hydraulic Roller Cam with Lunati Hydraulic Roller Lifters. This eliminated the need for oil additives and gives it more longevity and better wear characteristics with less valvetrain noise. We then added a fully restored Tri-power set up.
Once the assembly is finished we then move to the dyno. This is where we engine goes through the break-in and is put it through a series of performance runs. With each run, we tune to get the optimal results.
So here it is, a beautifully restored Pontiac Tri-Power that is leaps and bounds above what came off the assembly line.
All Aluminum Block with Eagle 4.500" Stroke Forged Crank, Ross Custom Pistons, Comp Pontiac Custom Billet Roller Cam, 950 CFM Ultra XP Holley Carb, MSD Dist and Ignition Kit, Butler GZ Evac Pump Kit, Northwind Intake with 340cc Round Port CNC Butler/Edelbrock Heads, Butler Custom Fabricated Valve Covers, and much more
FAST XFI Sportsman System, FAST 4150 Black Anodized Throttle Body, Pontiac Edelbrock Victor 1050 Intake, Edelbrock Aluminum Heads, Comp Custom Cam, Johnson lifters, GZ Evac Pump System, Custom Butler Valve Covers, and much more
535 cu. in. street engine
820 HP and 860 ft/lbs of torque (at only 3800 RPM!!!) and on pump gas!
535 cu.in. Butler Performance Pontiac with a BDS 8:71 blower, CNC ported Edelbrock heads, BP/COMP custom hyd roller cam, and FAST XFI. We also added a full serpentine belt system with all accessories including AC. This is going in Tom's 1965 GTO with a Tremec 5 spd.
This is just the start of this twin turbo engine. It produces 1400HP when the boost is turned up and running on race fuel. This is a beast of a "street" engine.
Butler Performance custom builds Pontiac engines to your specifications. Whether that's an all out race engine, perfect street engine, or something in between! Let us know what you want and we can build it!
Butler Performance custom builds Pontiac engines to your specifications. Whether that's an all out race engine, perfect street engine, or something in between! Let us know what you want and we can build it!
(Up to 600 + HP on Pump Gas) Many custom options available.
Torker II or Huricane intake- Fits under stock hoods hyd. roller. with FAST EZ EFI-- Hassle free, self learning electronic fuel injection - very streetable/drive anywhere
FEATURED PONTIAC ENGINE
BUTLER PERFORMANCE introduces the ULTIMATE PONTIAC STREET ENGINE !! 700+ HP and 700 ft.lbs. Torque - PUMP GAS AND HYD. ROLLER CAMSHAFT !!
Butler Performance 535 cu.in. engine w/ IAII Block and our CNC Race Ported Edelbrock Heads ( std. port version ). This engine features a very PUMP GAS friendly 10.9:1 c.r. and a Butler Performance custom ground Hydraulic Roller cam for excellent, drive it anywhere streetability- and very low maintainence, just drop it in and enjoy!
We offer several options with these engines including various valve covers, paint colors, pulleys and accessories, nitrous, EFI, etc... We even have a combo that will fit under a stock Trans Am Shaker!
If your not in the market for a complete, turn-key engine from Butler Performance, or you have some parts of your own (block, heads, intake, etc.), then we can sell any part of this 700+ HP combo in KIT FORM.
We do a COMPLETE Unassembled Engine Kit with EVERYTHING you need to assemble this engine yourself, or we can do a Shortblock Kit, Top End Kit, Etc.
We"ll gladly work with your local machine shop or engine builder(including yourself if your the builder) if you want to have some of the work done close to home. Call or email for more info and a detailed price list.
And remember to ask us about our flexible payment options.
8:71 BDS blown Butler Performance Pontiac on the dyno. 474 cu.in./455 block, very mild HYD ROLLER Cam, 8:1 c.r with 7 psi boost on pump gas.
Made 711 HP and almost 700 ft/lbs torque! Should make a fun little street cruiser... with the AC on!
421 Engine (4.000” Stroke) 800+ HP 700+ ft lbs Torque Pump Gas Pro-Charger w/ Carb
805 HP on PUMP GAS (NO NITROUS) with a March Serpentine System modified for use with an electric water pump and a crankcase evac pump.
Completely tuned and ready to run from Butler Performance.
2,105.2 ft-lb of tourque
2,886.0 hp @ 7200 rpm
with a 4.250 bore and 4.250 stroke & 40+ lbs of boost (482 c.i.)
click HERE for more info on the IAII Aluminum Block
CNC wideport Edelbrock heads, bracket race reliability with heads-up power!
This combo made 880 HP and 778 ft.lbs. Torque ON PUMP GAS and uses our March Serpentine system
click HERE for more info on this engine and the car it is installed in!
489 c.i. Pontiac Street Engine w/ F1R Procharger and ALL Accessories.
This engine is featured in the Burt Reynolds Edition Trans Ams.
2016 Update- 4.250" Stroke 4.350" Bore 505 cu.in. making 855hp @ 7400 RPM and 685 ft.lbs. of Torque
This engine features highly modified (by Butler Performance) RAIV heads. 820 HP @ 6800 RPM- 650 ft.lbs. of torque. ( 4.375" Bore x 4.150" stroke ) Butler Performance has a PONTIAC Engine combination for ANY application!
Justin went with a machined, balanced engine combination that he assembled himself, which was a 482 c.i. IAII block, balanced rotating assembly with BP/ROSS custom turbo pistons, BP/ Edelbrock CNC ported heads, custom valvetrain, and other street car stuff!!!
Link to Discovery Channel's under the hood with Justin from Street Outlaws
PONTIAC Peak HP: 659@ 6,200 Peak TQ: 624.5@ 4,600 rpm
Avg. HP: 523 Avg TQ: 578.6 SCORE: 1101.6
Cubic Inches:467
Cam: Solid Flat Tappet
Fuel: Gasoline - 92 Octane
We do stock appearing and rare factory engines, including 389 Tripower, SD421, RAII, RAIII, RAIV, HO455, SD455, and RAV We can internally modify(strokers, head porting etc.) any of these engines to greatly improve power and durability while maintaining a totally stock appearance.
Using our CNC wideport Edel. heads! (NO NITROUS) NOW THAT'S PONTIAC POWER!!
