i tried searching for the bolt sizes on websites that sell oem parts and stuff and i cant exactly find what size they are.

i need to know what bolt/ nut size bolts the catalytic converter to the header. also i saw a picture of a spring??? anyone can chime in i'd appreciate it on that.



and i need to know the size of the bell housing transmission bolts. (bolt the transmission to the engine case)

 

They're spring bolts. The Honda dealer has them. They're like $17 a piece.

 

ok and the tranny bolts?

 

The sizes are listed. See below. 8x40 is an M8 x 40mm long. You will need 12 of these.

95701-08040-08 27 BOLT, FLANGE (8X40) 12
95701-08050-08 28 BOLT, FLANGE (8X50) 2

 

to hell with stealerships make a grocery list of all the bolts you need and go to lowes hardware. you might spend 15 bucks for everthing you need. after the 87th time i bolted my header back up i stopped using those spring bolts and just use regular nuts n bolts with lock washers. never had problems before i went with boost

 

Nice thought, however Lowes and Home Depot for that matter have a limited selection of metric bolts. If the bolt has a fine pitch, good luck finding a supplier in the US at all. They are out there, but then you need a special grade for this or that, you may very well be SOL.