The engine was broke in on the dyno this morning. On the best run it had 378 horsepower at 5600 RPM and 392 foot pounds of torque at 3600 RPM. I'm pretty happy with the numbers for the parts selection. Remember that this was using the stock 2.5" cast manifolds, if headers were used I'm sure it would have broke 400 horsepower. Hopefully we can get a pull sheet scanned in and posted. Here is the list of parts used:
-422 Truck Block which has hot tanked/honed- standard bores
-Block has new cam bearings and soft plugs
-Block did have a crack which was repaired using Lockn' Stitch kit (see this thread for the repair:
http://www.348-409.com/forum/threads/409-crack-repair.25158/ )
-Stock crank that has been super finished
-Stock connecting rods
-11:1 forged pistons
-Melling M55 oil pump
-Comp. Hydraulic Cam #48-000-5
516/520 lift
224/230 duration @ 50
- High performance Hydraulic lifters
-5/16 Chrome moly push rods
-Stock rocker arms
-817 Heads
-New Stainless valves (2.07 and 1.725)
-Forged valve keepers and retainers
-1.430 Valve springs
-Stock single point distributer
-Stock water pump
-Stock 2.5" exhaust manifolds with stock 409 exhaust system
-Stock fuel pump
-Edelbrock dual quad small port intake (5408)
-Edelbrock 1404 500 CFM carbs
-Nick