All Pontiac/Tiger Cylinder Heads

Pontiac V8 All Pontiac/Tiger Cylinder Heads

Discontinued Race Casting — All Pontiac/Tiger Cylinder Heads for Pontiac V8s

The All Pontiac Tiger cylinder head was an aftermarket race casting aimed at the IA II cast iron block and the IA II and Butler Performance aluminum aftermarket blocks. It used a high velocity port design with a high efficiency chamber, and it required a minimum bore of 4.310", which is what kept it off factory Pontiac blocks.

The Tiger head line is discontinued. This page is kept for reference for owners who already have a set. If you are spec'ing a race head now, Butler's current programs are the CNC wide port and the Edelbrock Victor Pro Port castings, both covered elsewhere in the cylinder head section.

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More About All Pontiac/Tiger Cylinder Heads

1. What the Tiger Head Was

Worth knowing if you have a set on the shelf or are looking at a used pair.

Intended blocks	Designed primarily for the IA II cast iron block and the IA II and Butler Performance aluminum aftermarket blocks, not for a production Pontiac block.
Bore requirement	A minimum bore size of 4.310" was required. That alone rules out most factory castings and a good many aftermarket combinations.
Material and form	356-T6 aluminum, offered in standard stock-location exhaust port and raised exhaust port versions, bare with guides and seats or fully assembled.
Port character	The design paired big flow with a high velocity port and a high efficiency chamber, which is why it was also presented as workable in a streetable combination rather than strictly as a race-only part.

2. If You Already Own a Set

A discontinued casting is not a dead casting. The head shop work is the same work.

Valvetrain parts	Butler's Head Builder Kit for aftermarket aluminum castings is built around whatever cores you bring, supplying Ferrea valves, springs matched to your cam specs, chromoly retainers and locks, locators and valve stem seals.
Machine work	Valve jobs, guide work and blueprinting are handled in house on the same equipment used for Butler's own head programs.
Before you order parts	Call with the casting and what is in it now. Valve sizes, seat material and rocker system on these heads vary set to set depending on how they were originally built.

3. Where Butler Points You Instead

Nothing on this page is available to order. For a new build, the choice narrows quickly.

Standard block, serious power	Butler's CNC wide port Edelbrock head at 370+ CFM, in 72cc or 87cc, hydraulic or solid roller.
Aftermarket block, race only	The Edelbrock Victor Pro Port castings, bare or CNC ported complete, with the shaft rocker and offset lifter requirements that come with them.

Tell us the block, the bore and the class. That is usually enough to say in one call whether a Pro Port casting is the right answer or whether a ported round port head does the job for less money.

Not sure what your Pontiac needs?

Email our tech team at tech@butlerperformance.com. Tell us your engine, heads, car, and power goal, and we will put the parts together as one combination that works.