First Start LS1 NIGHTMARE!!!!

[chrispypunk86]

ouch man... my first start resulted in catastrophic failure as well... not fun.

Really what happened with yours?

[Andrew R]

ouch man... my first start resulted in catastrophic failure as well... not fun.

Really what happened with yours?

Aluminum oxide blasting material in the oil pan seems to have been the culprit -however during the rebuild I found a oil control plug that was shot -either way -I lost ALL the bearings and oil pressure after about 20 min of running it.

[gnx7]

Buy a used piston with complete con rod from here or ls1tech.com and slap that sucker back together.

For the cost of the Stg 2.5 heads you can pay a little more and have NEW TFS 220cc as cast heads which are a lot better.

[mattster03]

Looks like an M6x1.0 to me.   

This.  And it looks like about the right length for a Valley Cover bolt to me.

[ncaudio]

Bummer

[chrispypunk86]

Buy a used piston with complete con rod from here or ls1tech.com and slap that sucker back together.

For the cost of the Stg 2.5 heads you can pay a little more and have NEW TFS 220cc as cast heads which are a lot better.

Actually thats what I was gonna do until I found a hairline crack in sleeve and block.

[gnx7]

I'm selling an '01 5.3 with around 50K miles for $800.  It is a long block.

[chrispypunk86]

Thanks but I think im gonna go with a ls1 with 20k miles on it.

[FC3S Murray]

Where at on the block was it cracked? Same area around#4 or  totally different spot?

[chrispypunk86]

It cracked along the same cylinder.