After debating for a while on whether to build another car and keep the 283 in the Impala for now or upgrading to a 409,the 409 won with a bit of a nudge from my Uncle Brian. The motor swap probably works out much better since I have a 3 year old, and don't have enough time to devote to restoring another car for a few more years.
Here is what the 409 build will consist of:
-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)
I'm thinking of using the Edelbrock 1403 and 1404 performer carbs for the engine, or is it worth the extra money to go with the Thunder series? Are there any pros or cons to either of these for the guys that have used them?
Also, what linkage is best to use on the Edelbrock carbs- the stock linkage or the progressive linkage they have for the dual quads?
- Nick