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Why Drag Racers Still Fill Engine Blocks With Concrete-Like Material
Key Takeaways
- Engine builders use block filler to reinforce coolant passages that can weaken a block under extreme load.
- The technique helps reduce flex that can distort cylinder walls and hurt ring sealing.
- It is most suited to drag racing because the cooling tradeoff is acceptable for very short bursts of power.
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DT Editorial Team··via jalopnik.com