7.3 Powerstroke Products Heavy Duty Valve Spring Kit category_80-86-bullnose-interior the OEM rubber deteriorates

the OEM rubber deteriorates

The THFR (Thermostat Housing Fix Repair) was engineered to solve it once and for all—no more bandaids

a twin pump setup is required

leading to slow starts

5 degree bushing is required

7.3 Powerstroke Products Heavy Duty Valve Spring Kit category_80-86-bullnose-interior the OEM rubber deterioratesPP HDVS7. 3 Heavy Duty Valve Spring & Retainer Kit 7. 3 Powerstroke Looking to take your 7. 3 Powerstroke to the next level? The PP HDVS7. 3 Heavy Duty Valve Spring & Retainer Kit from Powerstroke Products is engineered for maximum performance and reliability. This complete kit is built to handle high RPMs and boost levels, keeping your engine running strong under extreme conditions. Why Upgrade: Heavy Duty Springs: 165 lb springs designed to handle