Subaru EZ30 Spring kit KVS30 walbro 264 contoured inner surface for maximized

contoured inner surface for maximized flow efficiency

Most blocks are limited to 105 foot pounds unless it’s an RB 30 RD 28 or an in one version of an RB 26 in which case 110 foot pound also applies

TIG-welded vanes

Stainless Steel (Heat Treated 431) V-Band Clamps

Suits turbo sizing in the 54-68mm range

Subaru EZ30 Spring kit KVS30 walbro 264 contoured inner surface for maximizedIntake: 76lb at 31. 2mm, coil bind 19. 05mm. Exhaust: 90lb @ 37. 0mm, coil bind 26mm. SUBARU EZ30 High Performance valve spring set to suit stock retainer. Short spring installs on intake side to give 76lb at 31. 2mm, coil bind 19. 05mm . Add base supplied to Exhaust side on top of OEM base to give 90lb @ 37. 0mm, coil bind 26mm.