Valve Springs
#1
Posted 25 June 2018 - 03:54 PM
#2
Posted 25 June 2018 - 03:57 PM
it depends on what the Cam requires.
I would also be looking as to what caused the spring to snap.
#3
Posted 25 June 2018 - 05:17 PM
#4
Posted 25 June 2018 - 06:55 PM
The 12G295 heads were originally fitted with double valve springs. Factory specified fitted spring loads were about 65lb closed and 110lb open.
Avoid fitting heavy rate springs, these won't do the standard cam any good and you don't need them for normal road use.
#5
Posted 25 June 2018 - 07:51 PM
Usually a broken spring is from over-lift for the springs and they are getting in to or near coil bind (need to have a minimum 0,040" clearance between coils at full lift) or from valve bounce.
#6
Posted 25 June 2018 - 09:14 PM
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