Engine noise

[CoreCorey]

Ok so I have a 94 mighty max and I just recently replaced both head gaskets everything is good but when I crank it it sounds like something is hitting and it makes the most god awful noise what could it be?

[tortron]

You didn't leave your 10mm socket inside did you? Haha

Does it sound like a little metal hammer? Or rubbing?

Holding a large screwdriver handle up to your ear, press the screwdriver tip around the engine to confirm where it's coming from.

It's a V6 right, did the valve covers go back on the correct heads and facing the right way (could be tappets contacting a baffle inside the covers)

How happy are you with the valve timing, pretty worse case scenario but the valves could have contacted the pistons

Could be the exhaust pipe knocking on something

Just need to figure out where the sound is coming from

[CoreCorey]

It's not valve timing or exhaust, however you hit the nail on the head with the metal hammer, it definitely sounds like a metal hammer

[CoreCorey]

And yes it's a v6 3.0

[geezer101]

Won't be valve to piston contact unless something has gone catastrophically wrong. Follow tortrons' advice and try to isolate where the noise is coming from. It sounds like it is something that's been done while reassembling it.