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Butler Performance, a name synonymous with High Performance, specifically traditional Pontiac engines.
Butler Performance Categories
Pontiac V8 428 Engine Rebuilder Assemblies
A 428 That Stays a 428 — 428 Engine Rebuilder Assemblies for Pontiac V8s
428 Engine Rebuilder Assemblies are the shelf for a 428 that is...More Details »
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Pontiac V8 428 Pistons
Stock Stroke and Stroker — 428 Pistons for Pontiac V8s
428 Pistons share a bore family with the 400 but not a stroke. The 428 came with a 4.000" stroke crank,...More Details »
Pontiac V8 428 Stroker Rotating Assemblies
Stroke on Top of Stroke — 428 Stroker Rotating Assemblies for Pontiac V8s
A 428 stroker starts from a block that already has stroke, so...More Details »
Pontiac V8 428 Super Stroker Rotating Assemblies
All the Stroke It Will Take — 428 Super Stroker Rotating Assemblies for Pontiac V8s
Super stroker is Butler's term for the longest...More Details »
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Pontiac V8 455
Big Block, Bigger Plan — 455 for Pontiac V8s
Starting a build on a 455 means you already have the bore and the 3.25" mains, so a Crate Engine Builder Kit is mostly...More Details »
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Pontiac V8 455 Block
The Most Cubic Inches Pontiac Ever Cast — 455 Block for Pontiac V8s
The 455 is the largest factory Pontiac V8, and it starts with the biggest bore and the 3.25"...More Details »
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Pontiac V8 455 Block
Start Big, Finish Bigger — 455 Block for Pontiac V8s
The 455 starts with more cubic inches than any other factory Pontiac block, so an assembled 455 short...More Details »
Pontiac V8 455 Block
462 To 501 Cubic Inches — 455 Block for Pontiac V8s
455 Block kits work with the largest factory Pontiac bore and the biggest main journals, which is why a 455...More Details »
Pontiac V8 455 Engine Rebuilder Assemblies- Stock Stroke
462 Cubic Inches Without Stroking It — 455 Engine Rebuilder Assemblies- Stock Stroke for Pontiac V8s
455 Engine Rebuilder...More Details »
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Pontiac V8 455 Pistons
Where the Cubic Inches Get Paid For — 455 Pistons for Pontiac V8s
The 455 is the biggest factory Pontiac V8, and the piston is what decides whether it comes...More Details »
Pontiac V8 455 Stroker Rotating Assemblies- Up to 4.250 Stroke
467 and Up — 455 Stroker Rotating Assemblies- Up to 4.250 Stroke for Pontiac V8s
Stroking a 455 is a different...More Details »
Pontiac V8 455 Super Stroker Rotating Assemblies- Up to 4.500 Stroke
Over 500 on a Factory Block — 455 Super Stroker Rotating Assemblies- Up to 4.500 Stroke for Pontiac V8s
A 4.500"...More Details »
Pontiac V8 500hp+ Pontiac Carbureted Muscle Car Engine on Pump Gas
The Classic Combination — 500hp+ Pontiac Carbureted Muscle Car Engine on Pump Gas for Pontiac V8s
This is the parts...More Details »
Pontiac V8 500hp+ Pontiac EFI Muscle Car Engine on Pump Gas
Fuel Injection Without the Fight — 500hp+ Pontiac EFI Muscle Car Engine on Pump Gas for Pontiac V8s
This is the same 500hp+...More Details »
Pontiac V8 600hp+ Torqstorm Supercharged Engine
Boost on Top of Cubic Inches — 600hp+ Torqstorm Supercharged Engine for Pontiac V8s
Boost on a Pontiac does not have to mean a race...More Details »
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Pontiac V8 64-72 GTO, Lemans, Tempest
A-Body Specifics — 64-72 GTO, Lemans, Tempest for Pontiac V8s
The 1964-72 GTO, LeMans and Tempest A-body has a quirk no other Pontiac chassis...More Details »
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Pontiac V8 67-69 Firebird/TA
First-Gen F-Body — 67-69 Firebird/TA for Pontiac V8s
The 1967-69 Firebird is the first-generation F-body, and it does not share a mount with the 1970-up...More Details »
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Pontiac V8 70-74 F-Body Firebird/TA
Early Second-Gen — 70-74 F-Body Firebird/TA for Pontiac V8s
The 1970-74 Firebird and Trans Am is the early second-generation F-body, and it sits...More Details »
Pontiac V8 700hp+ 535ci Pump Gas Engine w/ IAII Aluminum Block
New Block, Big Inches — 700hp+ 535ci Pump Gas Engine w/ IAII Aluminum Block for Pontiac V8s
This is Butler's 700hp+ 535...More Details »
Pontiac V8 700hp+ 535ci Pump Gas Engine w/ IAII Cast Block
Iron and Attitude — 700hp+ 535ci Pump Gas Engine w/ IAII Cast Block for Pontiac V8s
The IA II cast block is the iron...More Details »
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Pontiac V8 72-74 X-Body
The Shared Pattern — 72-74 X-Body for Pontiac V8s
The 1972-74 X-body is the Pontiac Ventura, and it is the odd one in the lineup: a compact that never got...More Details »
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Pontiac V8 75-81 F-Body Firebird/TA
Late Second-Gen — 75-81 F-Body Firebird/TA for Pontiac V8s
The 1975-81 Firebird and Trans Am uses a mount system of its own, and it is the...More Details »
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Pontiac V8 Accessories- Distributor Clamps, Wire Looms, Etc
The Parts That Finish the Job — Accessories- Distributor Clamps, Wire Looms, Etc for Pontiac V8s
These are the small...More Details »
Pontiac V8 Adapter Fittings
Making Two Threads Agree — Adapter Fittings for Pontiac V8s
Adapter fittings are the pieces that let an AN hose talk to hardware that was never threaded...More Details »
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Pontiac V8 Aftermarket Block
No Core, No Surprises — Aftermarket Block for Pontiac V8s
When the plan outgrows a factory casting, the aftermarket block is the answer. A new IA II...More Details »
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Pontiac V8 Aftermarket Block
Built To The Block — Aftermarket Block for Pontiac V8s
Aftermarket Block pistons are a different conversation than a factory Pontiac rebuild. An IA II...More Details »
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Pontiac V8 Aftermarket Block
Past The Factory Range — Aftermarket Block for Pontiac V8s
Aftermarket Block rings start where the factory Pontiac bore range ends. An IA II block gets...More Details »
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Pontiac V8 Aftermarket Block
Where Pump Gas Meets 700 Horsepower — Aftermarket Block for Pontiac V8s
When the target is 600 horsepower or more on pump gas , a forty-year-old factory...More Details »
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Pontiac V8 Aftermarket Block
Past the Factory Casting — Aftermarket Block for Pontiac V8s
There is a point where a factory Pontiac casting runs out of cylinder wall and main web, and...More Details »
Pontiac V8 Aftermarket Blocks (455-541 cu. In.)
No Factory Ceiling — Aftermarket Blocks (455-541 cu. In.) for Pontiac V8s
An aftermarket block removes the limits a factory Pontiac...More Details »
Butler Performance Products
Description: 7/16 Rocker Arm Stud and Polylock Upgrade Kit (Set/16)
Item #: BPI-Upgrade-Rocker-Studs-Polylock-350-455
Condition:
New
Price: $80.95
Description: 7/16 Rocker Arm Stud and Lock Nut Upgrade Kit for 1961-1966 389-421 Heads (Set/16)
Item #: BPI-Upgrade-Rocker-Studs-389-421
Condition:
New
Price: $82.95
Description: 7/16 Rocker Arm Stud and Lock Nut Upgrade Kit for 1967 and later heads (Set/16)
Item #: BPI-Upgrade-Rocker-Studs-350-455
Condition:
New
Price: $49.95
Description: 6061 Billet Aluminum. Multi Axis CNC Milled in our shop. Custom designed for the offset and elevation of stock and aftermarket blocks. Grooved posts grip distributor and bolt hole slotted for...More Details »
Item #: BPI-DC1
Condition:
New
Price: $29.95
Description: Bolt On Remote Oil Filter Bypass Kit
Item #: BPI-1011-Kit
Condition:
New
Price: $379.95
Description: Bolt On Remote Oil Filter Bypass Plate 1/2" pipe
Item #: BPI-1011
Condition:
New
Price: $59.95
Description: Works well when you need to space up your covers for rocker clearance or to run stud girdles. Now in 1/2"
Item #: BPI-1039T
Condition:
New
Price: $129.95
Description: Works well when you need to space up your covers for rocker clearance or to run stud girdles.
Item #: BPI-1039
Condition:
New
Not Available
***3-4 weeks ETA as of 9/17/2026***
Price: $119.95
Description: Pontiac Book- How To Restore Your 1964-1974 Pontiac GTO by Don
Keefe
Item #: BPI-SA218P
Condition:
New
Price: $28.95
Description: Pontiac Book-"How to Build Max-Performance Pontiac V-8s" *UPDATED* by Rocky Rotella
(This is an Updated step-by-step book loaded with how-to, tech tips and combinations for building your very own High Horse Power engine)
Item #: BPI-SA233
Condition:
New
Price: $26.95
Description: Pontiac Book-"How to Re-Build Pontiac V-8s" *UPDATED* by Rocky Rotella
(This is a step-by-step book with over 400 color photos and a bunch of helpful tip sections throughout the book. This will...More Details »
Item #: BPI-SA200
Condition:
New
Price: $22.95
Description: Bronze Valve Guides .535".342" X .564" X 2.280'' Pont. SD Cast Iron Heads
Item #: PEP-B228-29-16
Condition:
New
Price: $98.95
Description: Pontiac 350-455 Cam Bolt & Washer 1/2-20
Item #: BPI-Bolt-Kit-CAM
Condition:
New
Price: $13.95
Description:
6X Heads (other numbers available)
Milling optional / additional charge (let us know your desired compression ratio)
Completely ported and polished (starting...More Details »
Item #: CC-00155
Condition:
New
Please Call for Availability
Description: Cast Valve Guides 11/32(.342") ID - .502 OD - 2 3/8" Long/Pont. Cast Iron Heads (Set)
Item #: PEP-C5006B-16
Condition:
New
Price: $29.95
Description: Butler Pontiac Logo Hat / #6- Red White and Blue (Flexfit)
Retro Patch Look Logo
Item #: BPI-HAT-1513
Condition:
New
Price: $26.95
Description: Pontiac Clutch Fork Pivot Stud for Bellhousing, 1967-81
Item #: APE-R167CR
Condition:
New
Price: $14.95
Description: Pontiac Clutch Fork Pivot Stud for Block (GM)Z-BAR TO ENGINE 64-67, 73-77 (A-BODY)/71-74 (X-BODY) - CLUTCH COUNTERSHAFT TO ENGINE (GM)
Item #: APE-R167H
Condition:
New
Price: $37.95
Description: Pontiac Clutch Fork Pivot Stud for Block (GM)Z-BAR TO ENGINE 67-69 F-Body - CLUTCH COUNTERSHAFT TO ENGINE (GM)
Item #: APE-FR712P
Condition:
New
Price: $34.95
Description: Pontiac Clutch Fork Pivot Stud for Block (GM)Z-BAR TO ENGINE 70-81 F-Body - CLUTCH COUNTERSHAFT TO ENGINE (GM)
Item #: APE-FR713P
Condition:
New
Price: $34.95
Description: 1964-77 GM Ball Stud Clutch Z Bar To Frame Bracket
Item #: APE-R167F
Condition:
New
Price: $18.95
Description: Pontiac Clutch Install Kit includes pilot bearing, thrust bearing and pressure plate bolt kit
Item #: BPI-Clutch-Install-Kit
Condition:
New
Price: $94.95
Description: "Black" Billet Aluminum Push in Breather for Valve Covers
Fits valve covers with 1.25" hole using grommet # RPC-S4878 (1" ID/ 1.25" OD)
Pontiac CNC Logo engraved right here in our shop
Item #: BPI-S6001-PONT-BK
Condition:
New
Price: $59.95
Description: "Polished" Billet Aluminum Push in Breather for Valve Covers
Fits valve covers with 1.25" hole using grommet # RPC-S4878 (1" ID/ 1.25" OD)
Pontiac CNC Logo engraved right here in our shop
Item #: BPI-S6001-PONT-POL
Condition:
New
Price: $59.95
Pontiac Custom Fab Aluminum Valve Covers, Raw or Black, 2 3/4, Choose Your Options (Set) BPI-SVC-FAB
Description: Choose all your options to make a custom set of Valve Covers- Logo, Oil Fill, Breathers, and Locations
Hand Fabricated- Made in the USA
Oil Fill cap with installation now included
Item #: BPI-SVC-FAB
Condition:
New
Price: $519.95
Pontiac Custom Fab Aluminum Valve Covers, Raw or Black, 3 1/2, Choose Your Options (Set) BPI-TVC-FAB
Description: Choose all your options to make a custom set of Valve Covers- Logo, Oil Fill, Breathers, and Locations
Hand Fabricated right here in the USA
Oil Fill cap with installation now included
Item #: BPI-TVC-FAB
Condition:
New
Price: $549.95
Description: Pontiac D-PORT Stock Replacement Head Bolt Kit With Accessory Studs, 1965 Only (Will not work on 1966 Heads 092 & 093)
*must reuse stock head bolt for center exhaust bolt on if using with 1966 #092 and 093 heads*
Item #: ITU-13371
Condition:
New
Price: $128.95
Description: Pontiac Dipstick (no AC)
*17 3/4" long from top of bell to tip*
Item #: BPI-9405R-2
Condition:
New
Price: $22.95
Description: Pontiac Dipstick (no AC) RAW FINISH
*17 3/4" long from top of bell to tip*
Item #: BPI-9405R-1
Condition:
New
Price: $17.95
Description: Pontiac Dipstick Tube Installation Tool, Use with N304 or factory block dipstick tubes
Item #: BPI-1001
Condition:
New
Price: $11.95