Engine Pro 02-4040-32 Performance Valve Springs Set for 2003-2010 Ford Powerstroke 6.0L 6.4Running more boost or higher rpm than your factory valve springs are rated for? OEM springs often cause valve float and reversion. This can be a deadly issue to have when trying to make more power. Engine Pro performance valve springs increased pressure alleviate this problem. Fitment 2003 2010 Ford 6. 0L 6. 4L Powerstroke Diesel Engines ____________________ Specs: O. D. . 995" Closed Seat Pressure 90lbs @ 1. 880" Open Seat Pressure 260lbs @ 1. 400"
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Engine Pro 02-4040-32 Performance Valve Springs Set for 2003-2010 Ford Powerstroke 6.0L 6.4