Pushing Big Block Power with Kaase SR 71 Heads

If you are looking to unlock massive horsepower from a Ford big block, the kaase sr 71 heads are likely sitting at the very top of your wish list. There is a reason Jon Kaase is a legend in the engine-building world, specifically when it comes to the 385-series Ford engines (the 429 and 460). For a long time, if you wanted serious power, you were stuck choosing between factory-style iron heads that had their limits or full-blown pro-stock style heads that required you to hack up your car. The SR 71 heads changed that dynamic by offering a "bolt-on" solution that breathes like a dedicated race engine. ...

May 4, 2026 · 6 min · Kyeron Finer