Oil cooler line block fitting size on 660 block [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Oil cooler line block fitting size on 660 block


Dave12
03-10-2008, 04:31 PM
Does anyone know the thread specs for block fitting for the oil cooler lines on a 660 bock?

Thanks,

Dave

0lee
03-10-2008, 08:04 PM
If it's not a special block, 3/8" NPT should fit.

Dave12
03-10-2008, 08:07 PM
Perfect! Thanks.

Dave