does anyone know the size for the manifold bolts

[MikeyFord3]

So im putting in this new engine i was take the old exhaust manifold off they block on the old engine and the snappedddd.. does anyone know what the size is for the bolts so i can go to the hardware store and pick uhm up?

 

[IMenriched]

So im putting in this new engine i was take the old exhaust manifold of the block on the old engine and the snappedddd.. does anyone know what the size is for the bolts so i can go to the hardware store and pick uhm up?

book says they should be 8mm....gonna take a stab at the thread pitch of either 1. or 1.5mm.....for the factory heads.

If you have aftermarket World product heads ....hhmm...thinking that they were a bit larger that 8mm??

thinking that I got mine from fasten-all...& put High temp antiseeze on them.

 

[AllanD]

8mm x 1.25

Length variable depending on position.

AD

 

[BOHBOT]

8mm x 1.25

Length variable depending on position.

AD

8 of them are 80mm, 1 I believe is 50mm and 3 are 60mm.