Quote: Just finished doing a 2 part build using a 400BB Mopar. We took a steel 383 crank, stock rods, KB flat top pistons and filled the stock 400 block. First test was with 906 heads, milled .050 for 79cc and compression was 9.8:1 and zero decked.
We chose a thumpr hyd. cam, stock rockers, bowl cleanup in the ports, stock valve sizes (manley valves)and comp single springs. Topped with an rpm intake, 1" open spacer and a box stock 750holley it made 427HP @ 5700rpm and 443Tq @ 4200rpm using TTI 1 7/8 headers. Here's a pic....
What are the specs on the Thumpr cam and is it a tall fill or short fill? What kind of water and oil temps were you seeing with the fill? Also, how much of a recess is left in the chambers in the quench area after milling the heads .050? Where you able to get any kind of half decent quench clearences? Or will I have to wait for the magazine article to find out?
