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Hey all, I have 2 engines over here. 1 I know has a cracked #8. The other came in on a truck that I'm assuming its in rough shape. Someone transplanted a Truck configured 6.5 into an H1 I bought. since it won't package this way in the engine compartment, there solution was to remove the...

Hey all, I recently got my p400 installed, and in doing so have realized my factory FFM (fuel filter) / heater assembly has a leak. From what i can tell it is an O Ring that has gone bad. However, I'm upgrading my lift pump to a FASS unit and would like to benefit from its upgraded...

Hey all, So I've done some researching into bypass oil systems and have developed a parts list to piece my own, as well as settled on an aftermarket kit if i go that route. However, I'm still left with two questions before pulling the trigger. 1. which oil ports on the 6.5 are supply /...

Hey all, In the process of installing my p400. Got my injection pump in and went to install the water pump when i noticed it didn't seem to fit up right, luckily i was paying enough attention to see this. I already had my other 6.5 disassembled so i was unable to check clearances. Basically...

The reason I'm over here is I have a 1998 Hummer H1 thats finally decided to let go somewhere, i have a ton of combustion gasses in my coolant system, blowing white smoke with a misfire at initial start up till about 20-30 seconds in. Rather then work with this problematic setup i decided to...

New to the forum, was referred here by some people from the Hummernetwork in regards to 6.5L specific stuff. Little background on me and my rig, I like to tinker and fabricate stuff. I currently have a few projects going around the house and am always trying to learn how to advance a skill...