2012年4月1日 · A Pontiac may have its cylinder heads removed for a valve job, failed head gasket, porting for improved power, or swapping to a more efficient design. Regardless of the …

2005年9月1日 · Slap on a pair of these modern cylinder heads, choose a cam that matches their flow characteristics, improve the Chevy's bottom-end with long rods and lightweight pistons, …

2024年12月9日 · We are pleased to introduce to you, our aluminum D-port Pontiac head. This is our first aluminum Pontiac head casting that we have brought to the marketplace. This head is …

make big power from your Pontiac. With careful prepara-tion, less-celebrated heads can often be improved to flow as well as some of the legen. ally made at Pontiac’s foundry. Core-shift could …

Our machining and porting can yield dramatic flow improvements, resulting in a factory "smog" head that can flow as well as the pinnacle of Pontiac street heads: those used on the mighty …

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 D-port cast iron Pontiac cylinder heads ever. These …

2019年10月23日 · May not be Pontiac-specific, but David Vizard's How to Port and Flow Test Cylinder Heads has excellent content that applies to any 2 valve cylinder head. Also in the first …

2013年1月25日 · Modifying a smog-era Pontiac cylinder head to accept any original ’65-’71 intake manifold. There's no mistaking that Pontiac's cast-iron four-barrel is a solid performer.

Butler Performance's CNC wide port Edelbrock heads are some of the best flowing Pontiac heads available today. These heads have completely CNC ported intake and exhaust runners, so …

These heads can be ported for optimum performance on a 450 HP street engine or a 700+ HP racing engine, and everything in between. We have ported D-Port heads that run low tens in …