2.8 cologne pistons

Taunus · #1 (**permalink**) 11-02-2008, 07:42 PM

hey guys, i want 95mm pistons...we have enuff place?

thanks

Beanscoot · #2 (**permalink**) 11-25-2008, 11:34 PM

Huh?

kernel-panic · #3 (**permalink**) 02-09-2009, 08:58 AM

Even if you bored .060 over, you'd only get it out to 94.5134mm. I personally wouldn't recommend boring out much further than that....

Taunus · #4 (**permalink**) 02-09-2009, 07:38 PM

yes i thinking in 94mm

kernel-panic · #5 (**permalink**) 02-10-2009, 02:05 AM

My advice is unless you plan on adding a lot of extra cooling capacity and/or risking the engine block cracking, I would not bore the block out more than .030" (to 93.762mm) - at most .040" (to 94.016mm). If you haven't already done it, there is a mod to do to the heads to eliminate the 'hot spot' in the heads where the two exhaust ports 'meet'. It involves using the head gasket as a guide and marking the bottom of the heads for coolant passages in that location - you will want to use a smaller bit than the hole in the gaskets. I don't recall if there is a requirement to also drill the engine block, but it should be fairly obvious. I hope this answers your question