Mr. Luos

iTrader: (9)

GM block 12577184

Will stock LS1 head bolts work for this block??
I remember reading something about GM getting rid of the longer bolts, or something along those lines in more recent years.

Mr. Luos

iTrader: (9)

Bump.
I need to know before the end of the weekend.

MAC4264

04 and up blocks have shorter bolts.

Mr. Luos

iTrader: (9)

Thanks. That is what I was thinking.

Anyone know what year block is the number I posted??

Mr. Luos

iTrader: (9)

Sorrry to bring this back.

I got some head bolts Friday...LS1 head bolts. Well guess what....they bottom out a long ways from enough.
Does anyone know the GM part number for the shorter head bolt kit??

Mr. Luos

iTrader: (9)

ttt

I have made a couple calls. Seems there are a couple different bolts I might be looking at from GM.
Block #12577184
Anyone??
This crap slows me down yet again.....

Mr. Luos

iTrader: (9)

But the price is what is keeping me from them. I don't plan an having the heads off again anytime soon.
Just looking for the bolts. Are the shorter ones that fit the later model blocks the same ones as the shorter ones in the LS1 kit?? If so, I will just take them to a dealership Monday as ask them to order me a set.

Mr. Luos

iTrader: (9)

ttt

Does anyone have the GM part number for the short bolts?? Kinda in a rush here...damn motor was supposed to be together today...that didn't really come around very well.

Mr. Luos

iTrader: (9)

Come on....I know someone here has needed to use the shorter bolts!!!


Are they the same short ones that are in the older LS1 bolt sets?? They appear to work fine, but I would really like to make sure.

Haans249

iTrader: (24)

I'm just throwing this out here, but have you thought about just cutting the bolt to make it fit? Or is the threading not long enough....just a thought.

Haans