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Next, we pulled out the big guns. Many engine builders agree that the key to horsepower lies in the cylinder heads, and ours were nearly 40 years old in design. We decided to step up to modern technology and procured a set of Trick Flow aluminum 23-degree heads. These are available through Summit Racing, and feature 2.02/1.60-inch stainless valves and 64cc combustion chambers, along with a modern fast-burn chamber design and high-performance valve springs and retainers. They’re ready to go out of the box for $895, including the necessary guide plates, rocker studs, and hardened head-bolt washers. Plus, they accept any traditional small-block intake manifold and perimeter-bolt valve covers. The Trick Flow heads are also available with larger valve springs, CNC-machined chambers, and 72cc chambers. View Related Article
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