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OM603 valve springs NLA?
Can't seem to find valve springs for sale anywhere. Almost every vendor has lifters and valve keepers but no springs. While searching for performance upgrades, I stumbled across an old thread that mentioned M103 valve springs fit and that they were slightly higher rated in pressure as well. I can find those very cheaply through my shop's part vendor and seems like it's the only option at the moment...
Any reason against ordering up some M103 valve springs and tossing them in there? Just finished porting the head before it goes back so top end power is definitely the goal anyways. If the head holds up it'll be getting a S200SX turbo. I'm hoping the diesel cam lobe specs are a-OK with the extra seat pressure.
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{2010 Mazda 3 266,000mi} - daily since new, Airlift suspension + some chunky sway-bars: fastest pass 17.7@77MPH
{1987 300SDL 256,000mi} - stock turbo @ 22lbs straight piped + a whole bunch of pre-turbo water/meth injection, 722.3 with increased line pressure, special sauce, and shift kit: fastest pass 16.5@82
{1992 964 Carrera 4 Frankenstein ??,???mi} - 993 forward dated, Speedster conversion, GT45 + E85: fastest pass 12.5@113
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10-25-2019, 12:51 AM
Threaded Mode
