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These are built to the same specification as our Premium units but with an increased capacity of 1641cc. They are also fitted with a Scat C25 mild sports cam (Valve lift 0.423” / Duration 275 degrees). This combination provides a reliable increase in power and torque at a reasonable price. Results are especially good if used in conjunction with a 4 into 1 sport exhaust and aftermarket carburettors. All engines (except new crankcase units) are supplied with a modified standard bottom pulley that must be used. A new 009 distributor is also fitted. Supplied with any gaskets required for fitting.
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