(Lemonhead) has the e16 crank worked out in the big block A series block with sleeved 82mm bores for 1800+ something cc. He said his engine builder belives 83mm is possible with 83.5 to 84mm max using offseting the bores (for anything over 80mm). He was aiming for close to 1005 or 1951cc last I heard using either 83 or 84mm bores.

Problem with the e16 crank is they are rare and have small rod journals or crankpins for very cool looking rods this means the A series rods do not fit but its much easier to offset stroke the A15 crankpins from 82mm to 83mm using oversized bearings matched to 83mm bores to suit ca18de pistons you get some major capacity and only spend the money on the sleeves, crankpin mods and balancing etc.
The E series crank needs serious work to fit into the A block so its much easier to mod the A15 crank mildly and use sleeving/o-rings.

1796cc with 45mm webers should be torquey enough :) with that high port custom A series head concept along with boost should be close to a CA18det up to 18-20psi if custom manifolding is well sorted.