My home inspection of Speedmaster heads
My springs wouldn't clear my rockers on my 273 either. (without a little clearancing) Just a mismatch of springs and rockers on that head. Depending on what cam/combination we go with while using these heads may be a spring change is necessary. .600 lift dual springs may be over kill for a lot of us.. A slightly smaller spring might work. How about a set of bee hives? A bit of added expense buying springs and retainers but I know the rockers would clear those.
My springs wouldn't clear my rockers on my 273 either. (without a little clearancing) Just a mismatch of springs and rockers on that head. Depending on what cam/combination we go with while using these heads may be a spring change is necessary. .600 lift dual springs may be over kill for a lot of us.. A slightly smaller spring might work. How about a set of bee hives? A bit of added expense buying springs and retainers but I know the rockers would clear those.