MerCruiser V8 496 8.1L Design-2 GM Aluminum Valve Rocker Covers 891870 12570556 Upper Unit If something doesn't seem right

If something doesn't seem right here

Small crack through the center hole which is common for these

Thermostat IS STILL installed in this

Pulley spins very well - Removed from a very clean engine

(see pictures)

MerCruiser V8 496 8.1L Design-2 GM Aluminum Valve Rocker Covers 891870 12570556 Upper Unit If something doesn't seem rightItem Details MerCruiser BBC 496 8. 1L V8 Valve covers P N 12570556 (Stamped) MerCruiser part number is 891870 This is for the Design II coil So, this would fit MCM 496 Mag & HO (Serial Number 0M376088 and up) and MIE 8. 1L & HO (Serial Number 0M315053) You get the pair as pictured If you have any questions on compatibility, please contact me before purchasing. Some minor scratches small missing bits paint, but overall good condition Freshwater Used