flatline Posted September 10, 2020 Share Posted September 10, 2020 Hi, I have read somewhere that the 1100 'M' cylinder head can be converted from shim to screw & locknut... does anyone have any knowledge of this?? Quote Link to comment
Duckndive Posted September 10, 2020 Share Posted September 10, 2020 2 hours ago, flatline said: Hi, I have read somewhere that the 1100 'M' cylinder head can be converted from shim to screw & locknut... does anyone have any knowledge of this?? Easier to buy a screw and locknut head.... Quote Link to comment
Gixer1460 Posted September 10, 2020 Share Posted September 10, 2020 3 hours ago, flatline said: Hi, I have read somewhere that the 1100 'M' cylinder head can be converted from shim to screw & locknut... does anyone have any knowledge of this?? It can be, but not easily - why? - The 'M' head works fine . . . . . unless it's camshaft reasons? 1 Quote Link to comment
flatline Posted September 10, 2020 Author Share Posted September 10, 2020 4 hours ago, Gixer1460 said: It can be, but not easily - why? - The 'M' head works fine . . . . . unless it's camshaft reasons? I’ve heard that with upgraded cam’s the M head is susceptible to spitting shims?? Quote Link to comment
Duckndive Posted September 10, 2020 Share Posted September 10, 2020 12 minutes ago, flatline said: I’ve heard that with upgraded cam’s the M head is susceptible to spitting shims?? APE did a better retainer that stops that happening with high lift cams etc 1 Quote Link to comment
Gixer1460 Posted September 10, 2020 Share Posted September 10, 2020 1 hour ago, Duckndive said: APE did a better retainer that stops that happening with high lift cams etc Got those in mine! But I think a lot of the problems is from over revving the engine / buzzing them on a missed gear change at high revs. Peak power is normally well down from the red line so stay away from it and all will be good - hopefully? 1 Quote Link to comment
Joseph Posted September 10, 2020 Share Posted September 10, 2020 Unless the M head ports are significantly better for flow and HP or for your exact needs, i would just buy an earlier screw and nut head ? I mean if your plan is to build a tuned engine you are probably going port it anyway, so... 1 Quote Link to comment
Duckndive Posted September 10, 2020 Share Posted September 10, 2020 40 minutes ago, Gixer1460 said: Got those in mine! But I think a lot of the problems is from over revving the engine / buzzing them on a missed gear change at high revs. Peak power is normally well down from the red line so stay away from it and all will be good - hopefully? That was also my understanding 1 Quote Link to comment
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