LS1 Head Bolts

[VinceM]

Can anyone tell me if the head bolts on an 04 LS1 are all equal length or are they the older unequal length versions?

[gsd2000]

it depends on the age of the block, my 04 was the late standard and i think kmud had an earlier standard. Both 04 monaros

[VinceM]

Not the answer I wanted lol. Maybe need both sets!!!

[Boosted LS1]

Just undo the top left or top right bolt and see how long it is.

[bimbleuk]

As above I was expecting my '04 engine to be all equal turned out they needed the two shorter bolts so only ordered from MF after I took the old ones out.

[VinceM]

bimbleuk said:

As above I was expecting my '04 engine to be all equal turned out they needed the two shorter bolts so only ordered from MF after I took the old ones out.

Probably the best option...