Ls1 Piston Slap???

[GOLD_98_T/A]

Okay yesterday afternoon i was drivin my car 98 trans am ls1, to work . While sitting at the light my oil pressure drop and the motor start making a clanking sound. I get it into the lot shut it off. I go back out a few hours later and it starts but heavy clanking sound coming from either the number 2 or 4 cylinder and the oil pressure and rpms held somewhat stable at and idle. Any ideas????

[GOLD_98_T/A]

also there is 140k, all regular maint done, and no prior engine problems.

[EliteZ]

FS Feeler: Fresh LQ4 with Mods - LS1TECH (http://ls1tech.com/forums/showthread.php?t=911784&highlight=lq4)

If the oil pressure dropped and then you started to hear a noise, and now the oil pressure is back up and it is still making the noise, you definetely have an issue.

[GOLD_98_T/A]

thanks for the link...if i only had the cash for that, thanks for the post elitez.....how big of a pain in the ass is it to put a vette ls1 into an fbody as i f i remember correctly the vettes have electronie throttle body and other diffs, any input

[EliteZ]

The LQ4 is a Gen III (LS1) style engine w/ a bigger displacement and iron block.

You can use your intake/tb from your current engine. In fact all your sensors should be in the original locations.

[GOLD_98_T/A]

well i found an engine, its a 350 four bolt main, bored 60 over, hydraulic lifter, roller rockers, edelbrock carb and itake. Now im not sure what year it is, im guessing its from the 80's judging by the owners other cars. Would it be possible to switch my ls1 fuel injection system to this motor...i will have pics of the motor and more details friday.

[EliteZ]

LS1 is a Gen III engine with different head bolt patterns and design..

[GOLD_98_T/A]

damn...

[GRez]

Take it apart and see if it can be rebuilt....if so forged 346...7000 rpm...big shot.......tons o fun

[GOLD_98_T/A]

any ideas on what kind of money can be gained by parting the engine and tranny out

[EliteZ]

depends. If its a 6-speed, I'd say atleast 1500 bucks for that. Not sure really about Autos, due to liability issues. 800 bucks+?