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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
proper operating pressures are checked on a dedicated valve body test machine
4010-8388R
Not Just Case Hardened
a bolt upgrade to Custom Age 625 material is available for all Callies >
Not designed for production 302/351W or M-6049-Y302/Y303/X302/X303/X30 4/X305 cylinder heads Uses common OD cam bearings M-6261-J351/R351 Uniqu e cam plug M-6026-S351 included M-6051-S331 or M-6051-CP331 head gasket recommended Designed to be compatible with the original 302 and 351W blocks and includes the following features: Designed to use stock type timing cover
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" proper operating pressures are checkedEndurance 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
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