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Valve spring ?

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Old 11-03-2014, 07:07 PM
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Default Valve spring ?

I have Manley nextek springs #221436-16 currently on my heads which are rated to .660 lift my Hyd. roller is .640/.630 on a FI build is that to close or should i move up to the manley's that are rated to .700?
Old 11-04-2014, 07:11 AM
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Bump!
Old 11-04-2014, 08:04 AM
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You've got plenty of room, depending on the installed height.
Old 11-04-2014, 09:32 AM
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So is that enough spring I emailed BT and they think I should go with PAC 1207x springs due to the big valves and valve train?
Old 11-04-2014, 10:06 AM
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Just chatted with Manley and he said adjust the height to around .050-.060 coil bind at my max lift and the springs should be fine he did not feel I need to go to a heavier spring so what to do!



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