Hello List!

I am going to be rebuilding a 2.1 to put in my '85. I want to have even more than a stock 2.1 when I am done, though. I have looked at some of the other WBX engines that are on offer out there, and am wondering where the the parts came from to make the increased displacement motors. You can increase displacement by increasing the bore, or the stroke, or both. The stock stroke on a 2.1 is longer than a 1.9, but the bore was unchanged. One of the places I looked showed a larger bore (95.5mm vs. 94mm stock).
I am not interested in sending out a crank for the work needed to increase the stroke (not to mention finding different rods to match, etc., etc....) so the bore increase is where I want to go.

My question is where did these larger bore cylinders come from? I rebuild my own engines, so tools and techniques are not the issue. Parts are!

TIA

Evan Mac Donald

1984 Wolfburg
1985 GL 7 Pass.
1991 Carat Weekender
1972 Chevy P/U
1993 Bonneville