What's My Gasket From?

[MBS206]

Hey guys,

Blew the head gasket in my RB25/30, pulled it all down, and turns out, it neither matches the head, nor the block. Note, I didn't build this motor, and it only lasted a max of 1500kms before this let go...

Pics to come:

So, the head is an RB25DE head from an R32, and obviously, it's a S2 RB30 block...

So, does anyone know what that head gasket is from? I'm thinking RB20 due to the oil/water gallery line up sizes of it...

[Adriano]

What diameter is the headgasket bore holes?

[MBS206]

haven't measured them.

Will attempt to do that tomorrow.

[4drfts]

that would be an ACL Monotorque RB30E gasket. I have a new one in ront of me as i type. exactly the same. they are the cheapest gasket you can buy for an rb30conversion, and consequently dont eally last in turbo aplications...

[4drfts]

part number BP550MT