dont z20h8

iTrader: (1)

Ok guys so here's the story i went down to a buddys shop of mine yesterday to swap out intakes from a stocker to a ls6 after the reinstall we went to fire the car and and all of a sudden this loud knocking sound stared to happen we shut the car off right then n there took the intake back off and inspected everything, made sure a valve wasn't bent or nothing was inside bouncing around that mabie i had dropped inside but when we did finish inspecting nothing was there so i put it back on and get ready to fire it up again and I'm nervous as hell thinking i magically spun a rod or something just sitting there and have to tow my car home...... So i fired it up and BOOM!!!!! lol jk.....but we fired it up and the knock wasn't there anymore.. ..has this happen to anyone before?

93camaro_zzz

iTrader: (13)

Wish I knew what that knock sound sounded like. Definitely a strange phenomena.

boostit5.3

iTrader: (3)

freaky.. i had a mustang with a built 351w and one night i parked it came out the next morning went to go to work and it was running like crap and had no oil pressure. long story short it broke a rocker arm stud replaced it and everything was fine lol.

dont z20h8

iTrader: (1)

My car runs fine now but i was very nervous being its my DD, i just bought the car, & and i was 40 minutes away from home... Its really strange that it did that tho.

andy-lswon

iTrader: (1)

Maybe it was a bad case of piston slap. Idk these cars are known for that. Mine is worse sometimes for some reason

Monzsta

You probably dropped a piece of carbon or debris into the intake port and the motor passed it. Did you give the intake a good shake and a hard look inside? Most of a piston can end up inside there if that intake came from a blown motor.

dont z20h8

iTrader: (1)

Yea i even put a shirt over the intake ports to make sure nothig fell in but i simply dont know What happen im just glad that it was nothing serious

thegodfather899

iTrader: (1)

did the knocking change with rpm? if not mine did that after my ls6 intake install and it was just the evap solenoid clicking...it went away

dont z20h8

iTrader: (1)

Well when we started it we didnt rev it we shut it off right away and took it off to inspect

thegodfather899

iTrader: (1)

hm well if its gone now i wouldnt be too concerned unless it comes back