Manifold Swapping for Roots Blower - 134 HP With One Bolt-On!
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Because of its size, the 174 has no EGR provision and no pop-off plate to protect the blower from backfires. Instead, the 10-rib Poly-V belt slips to protect the blower rotors. Larger blowers require Gilmer or cog belts for traction and therefore require a pop-off plate as well. View Related Article
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