[euro911sc]

Originally Posted by speedo

Can someone measure a stock 3.0 head to get the distance from the bottom of the straight-edge to the top of the dome?

I sat with Grady on Saturday and compared it to a 935 head...and the difference was 3.5 mm. But a 935 head is different than a stock 3.0 head. My chain housings have been cut, but the cams were not centered in the seal...off by maybe 1mm. When the engine goes back together I will trial assemble the pistons and cylinders and heads with the cam towers and measure the deck height and valve clearance...the see how much more I will need to machine off the chain housings to center the cams in the seals. What is the best source for oversize idler arm sprockets cause I am probably going to need a couple?

Thanks guys

Speedo

Originally Posted by tom1394racing

Lars

I just did a rough check on a stock 80 SC head

As shown in your pics:

To the top of the dome = 27mm

To the sealing surface = 2.5 mm

Tom: he needs your straight edge width or did you take that out of the measurement already?

Lars: Why machine the chain boxes instead of space out the cylinders with a thicker copper gasket? Seems spacing it out avoids a host of other problems...

Also, Are there not drawbacks using a straight 2.2 pump on this 3.0?

Henry: You have built a few of these 3.0 MFI wonders. How did you set up the pump and what would be the best pump to start with as a core ro does it matter at all?

Best regards,

Michael