Butler Performance Inc. - Cylinder Heads / Top End Kits

Cylinder Heads / Top End Kits
One of the most important components to an engine's performance is cylinder heads. Butler Performance is the main source for stock and performance cylinder heads for your Pontiac.

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Cylinder Heads / Top End Kits - Top End Power Packages
Complete top end packages to build more horsepower and torque for your Pontiac. We've taken the guesswork out and includes everything you need to swap those old factory heads, cam, intake, lifters and more.
Cylinder Heads / Top End Kits - CNC Ported Cylinder Heads
Your engine will only make a much power as the amount of fuel and air that can get in. Butler CNC Ported cylinder heads takes Edelbrock castings and opens the ports up to a variety of sizes for...More Details »
Cylinder Heads / Top End Kits - Unported Cylinder Heads
These are aftermarket cylinder heads with what we call out of box port sizes from the Edelbrock and Speedmaster. These heads offer a vast improvement in flow over traditional cast iron Pontiac heads.
Cylinder Heads / Top End Kits - Head Builder Series Kits
Want a custom cylinder head you can assemble yourself? This kit is for you. Includes all the high quality valvetrain parts found in Butler built heads. These kits come with all machining completed and ready to assemble.
Cylinder Heads / Top End Kits - CNC Cylinder Head Porting Services
Send us your Edelbrock heads for custom CNC porting. We can arrange to ship your heads to us where they will be inspected CNC ported using our Butler CNC Porting Process.
Cylinder Heads / Top End Kits - All Pontiac/Tiger Cylinder Heads 
Bare 356-T6 Aluminum, 400+ cfm flow out of box, 50cc combustion chamber, 310cc intake port, Will accept up to 2.300 intakes, & 1.800 exhaust valves, Guides & seats included
Cylinder Heads / Top End Kits - Pontiac Cast Iron Cylinder Heads and Services
BP ports more Pontiac cylinder heads than anyone in the world. After years of extensive R&D both on the flow bench and on our track, we have developed some of the best performing round port and...More Details »

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