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A four-piston chain guide combo built for K-series engines in race use. The four-piston design is meant to hold the chain under hard load and high rpm, where a single-piston guide can flex. It suits builders running aggressive cams and sustained high-rpm track use, not street cars. Against simpler single-piston guides it offers more clamping force at the cost of more complexity and setup care.
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This is a timing system for Honda K-Series engines (K20 and K24). It includes one-piece chain guides, an ultra-high polish timing chain, and a performance tensioner. It is designed for racing use, where high RPM, high valve spring pressures, aggressive camshafts and racing fuels can wear or deform the factory plastic guides.
The chain guides are a one-piece design. They are made from a composite material that is stronger than aluminum and is unaffected by all fuels, including methanol and nitromethane, and by oil contamination. The one-piece construction stops movement against the aluminum head. Reshaped geometry and a guided channel change the chain path to control chain motion and slap at high RPM.
The timing chain is OEM-quality with an ultra-high polish finish. The finish reduces friction against the one-piece guides, lowers internal pin friction, reduces stretch over time and extends service life. The tensioner is hydraulic, like the stock part. An internal mechanical stop prevents it from collapsing during events such as missed shifts, over-revs or spin-outs.
