Cummins 855 Late Cylinder Head - Brand New, Loaded - 3055098

Cummins 855 Late Model Big Cam IV 400
300-350HP Automotive Applications. 
Please note: This cylinder head is assembled with "Small" Valve Springs, which are 1.25" in Outside Diameter. If your current head has 1.50" OD valve springs, you will need to order item number 166227 instead.  
Before ordering, please ensure that your current head has:1.25" OD Valve Springs (Small) - OE Part Number 2119991.55" Exhaust Ports (Small)3/8" injector hold-down bolts (Large)  - OE Part Number 30493330.140" Valve Protrusion (Standard)If you are unsure, please give us a call with your 8 digit engine serial number and we will verify your build. 
Loaded cylinder head. Assembled, tested and machined in the US! This item will arrive with a full valvetrain assembly and injector cups already installed. You will just need to swap your own injectors over.  
Cylinder head casting and all components are brand new. There is no core charge associated with this item. 
Cross Reference with:Casting Numbers: 3046760OE Part Numbers: 3055098, 3406734, 3411809, 3675505