Endurance Plus Dual Valve Springs with Damper (16) 1.560" OD ISK9385-PLUS Product:245LBS @ 2.000" Seat Pressure, 600LBS @ 1.280" Open Pressure, 1.180" 001" Extra Clearance 4SM2222HXSTD ACL4SM2222HXSTD

001" Extra Clearance 4SM2222HXSTD ACL4SM2222HXSTD Suit Holden Commodore VN-VT HOLDEN V6 3

RTFIRE-SMALL

Not Just Case Hardened

Pro-Gram Engineering 4-Bolt steel main bearing center caps

130" raised 75cc exhaust ports Available with 60cc or 70cc combustion chambers 70cc combustion chambers are ideal for turbocharged and supercharged applications CNC gasket-matched port entries/exits with blended valve bowls Spark plug holes and valves are in the stock location Valve cover rail raised

Endurance Plus Dual Valve Springs with Damper (16) 1.560" OD ISK9385-PLUS Product:245LBS @ 2.000" Seat Pressure, 600LBS @ 1.280" Open Pressure, 1.180" 001" Extra Clearance 4SM2222HXSTD ACL4SM2222HXSTDEndurance Plus Dual Valve Springs with Damper (16) 1. 560" OD245LBS @ 2. 000" Seat Pressure, 600LBS @ 1. 280" Open Pressure, 1. 180" Coil Bind ISK9385 PLUS K9385 PLUS The Endurance Plus series of valve springs utilises a specially processed Tool Room Material for increased endurance and reliability beyond the "SP" series plus special processing for increased durability. Endurance Plus springs are designed for late models, modifieds, etc and are