Head Gasket Question

[Michaelmoore]

So my block has been bored .020 so that makes the cylinders 89.5mm. My issue is NOBODY (Cometic, Tomei, or Felpro) sells a 89.5mm gasket for the ka24de. Cometic has a custom gasket deal I think, but I was wondering if anybody has had an issue like this and what their solution was (whether you just went with a 90mm or custom ordered it)

[darens13]

i would just go with the 90mm gasket, it should be fine.

[motoman399]

im sure the 90mm would also be fine. .5mm is about as think as your thumb. that means its .25 bigger around on each side of the cyl.

[s13drifter88]

i think ur right, i think u can order a cometic in a diff bore size but you'd prob have to call and specify but i really dont know. all in all, it couldnt hurt to ask to future reference

[Michaelmoore]

Also another question to tack on, I will most likely just settle with the 90mm, but what thickness should I use? .027 or .040? The head, block and timing cover have all been decked if that matters.

[s13drifter88]

how much has been removed from them? use gasket thickness to accomodate for the material removed upon resurfacing. if they shaved .020 off the head get a gasket thats .020 thicker