100" Square (4" x 4") sporty build

[conv90]

Originally Posted by delcrossv

Yep. The shorter cylinders of the S&S version meant short piston skirts.
This one is taller.

For what I know the S&S 100 (4x4) preassembled engines are with 4.420" cylinders (shorter than stock 4.650" height). Probably the S&S case in these preassembled engines are taller cylinder deck height.

Which is the deck height of your S&S case project?

[delcrossv]

Originally Posted by conv90

....

Which is the deck height of your S&S case project?

I had it somewhere, but the cases are at the machinist's. I do know the cylinders will be longer than stock, and the Jesel rockerboxes are taller as well.

I'd be very surprised if it fit without raising the backbone, and have no expectations that it will.

[delcrossv]

Running some numbers.
Finally CC'd the heads and got dome volume off the pistons.

With .040 squish (assumed)

Static compression is 13.6:1
Dynamic is 12.6:1 with big overlap cams (Redshift 723V2's)

Looks like this one is going to run E85 (alcohol) -fortunately available pretty much everywhere around here.
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Should get a good power boost as stoich is around 8:1 for E85 as compared to 14.7:1 for gas. Wheee!

Cranking compression is 289 psi. Probably should start thinking about compression releases.