AndyR100 Posted April 6, 2019 Report Share Posted April 6, 2019 Hi all, while my engine TR4 (89mm liners) is in a fair state of dissassembly I was considering changing the camshaft. Does anyone know whether the Piper ‘High Torque Yellow’ camshaft sold by TRGB is the same as the Piper TR3BP270 ? If not I’ll give them a call next week. thanks in advance...... Andy Quote Link to post Share on other sites
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