How much will Spesso head gasket crush?

**Andrew** · #1 (**permalink**) 04-10-2009, 08:25 PM

I've got an AlfaStop Spesso 750 1300 head gasket that's about .080" uncrushed. Can anyone who's used one of these tell me how much it'll crush when torqued? I'm trying to determine if I have enough piston/head clearance. Thanks

Andrew

**Gordon Raymond** · #2 (**permalink**) 04-18-2009, 09:40 AM

Since no one will answer your question, I'll offer my best opinion. GENERALLY.. ALL Alfa head gaskets are designed to compress to ~about~ 1.5mm. This is a good generalization. Some specific designed "thick" gaskets, made for milled heads, or to lower compression will compress to about 2 mm. A good reason NOT to mill Alfa heads to get them flat!
There are special purpose gaskets of copper; I have one of teflon, for racing purposes.
The AlfaStop gasket is likely designed to replicate most other Alfa head gaskets and compress to 1.5 mm.
This is my opinion, from my experience.

Yaninnya · #3 (**permalink**) 04-18-2009, 11:36 AM

Most probably it will compress to 1.6 mm. What is the part number? I can check it with Spesso technical documentation.
Jan

**Andrew** · #4 (**permalink**) 04-20-2009, 07:30 AM

I'll look for the PN. Thanks all.
Andrew