Seat was 395# when repalced. PAC Racing 500 Series Valve Spring Retainer Fits Large OD Retain.er for Large Triple Spring – 1.620 in. OD – 0.865 in.
16 NEW PSI Polished 1.295" O.D. Dual Valve Springs #258 @ 1.250" NASCAR DEI
16 NEW PSI 1.290" O.D. Dual Valve Springs #377 @ 1.250" NASCAR ECR
16 PSI POLISHED 1.460" O.D. Valve Springs & 16 Manley ICD Titanium Retainers
16 NEW PSI 1.275" O.D. Dual Valve Springs #395 @ 1.150" LS 1512ML LS1 LS6
PSI Solid Roller Polished 1.480" Valve Springs and 300M Mini Top Lock Retainers