427 ford windsor 1061 compression ratio running on 91 pump gas. All new parts and castings.
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Promaxx sbf heads dyno. Credit for those impressive flow figures goes to full cnc porting including the 60cc combustion chambers and a 208160 stainless steel valve package. Promaxx performance has designed a complete new line of performance heads that meet or exceed the big names in the industry. Even the as cast heads utilize ultra smooth new runner and chamber designs that produce cncd type flow numbers. Customer supplied pro comp intake distributor promaxx heads and tfs camshaft. Not all that long ago the small block fans only choice for ford cylinder heads was the classic 351w ford heads swap on a 302. Todays small block ford street engine builder has it easy.
These heads have made dyno proven increases of up to 75 horsepower over ported e7 casting 50l heads. Go out and shock the competition. Promaxx performance products specializes in all types of automotive cylinder head for any budget carrying performance cylinder heads diesel cylinder heads and stock replacement cylinder heads. Flowing over 328 cfm through only a 210cc runner will make the power you need from your big cubic inch small block ford. The shocker 210 cnc sbf heads are tops in the industry. This particular dyno session was designed to illustrate the merits of a new set of big block chevy cylinders heads offered by promaxx performance.
The promaxx performance small block ford cylinder heads are manufactured from cast aluminum and have been designed to revolutionize the ford performance world with high quality at a reasonable cost. Compare performance and price and you will see it is no contest. When they began co owner jason collins set some lofty goals for their line of performance products. The promaxx maxx series small block ford aluminum cylinder heads are taking affordable performance street and strip cylinder heads to the next level. We previously ran these promaxx heads on a smaller 347 stroker but with 210cc intake ports that flowed over 320 the heads were better suited to a larger more powerful stroker combination.
Gallery of Promaxx Sbf Heads Dyno
