340 to 416 stroker build need advice

hellride
just did this exact buildup and im in the fine tuning stage at this point. here is what combo i have and my opinion.

started with a matching numbers 72 340 engine basicly all stock with 91000 miles. tired but ran good.

-had block fully tested. prepped and line honed 30 over
-went with eagle steel crank "5 lbs lighter than stock"
-eagle i beam rods "also lighter than stock"
-custom made diamond pistons forged with a dish for compression "again much lighter"
-clevite bearings thruout
-all arp bolts and studs
-melling h/d oil pump
-stock windage tray had clearance problems "went without but retained"
-comp cams 268h extreme energy k-kit 477/488 lift "should have went bigger" wanted more lope.
-ferrea valves with the comp kits springs and hardware
-stayed with the stock "X" heads for appearance sake 2.02/1.60 valves 74cc chambers with 3 angle valve job and hardened seats.
-elelbrock rpm manifold "painted to blend as factory"
-new just out summitt 750cfm vac secondary electric choke carb "basicly a holley"
-final compression ratio was a 9.3.1 on premium. even at that i had to back some timing out on premium 93. just be carefull if iron closed chamber heads.
-everything balanced and blueprinted by reputable machine and speed shop here in milford, mass. and done right.

thats the build up. one thing i would note and maybe do over again is the forged pistons to maybe hyperutectic. they are a little noisey by nature when cold and even warmed up almost diesel like but faint. just a little picky maybe. i dont race the car so forged was not all that necessary "builders recommendation though" also 2 more things i never considered but encountered.

-motor ran hotter than before so the cooling system was now marginal. the fix was a 3-core radiator rebuild from the stock 2-core coupled with a 180 thermo.

-on a hot start it would not refire until many revolutions on the stock lazy o.e.m starter. fix was a new summitt pro tourque starter and a phenolic 1/2 in carb spacer. both inexpensive fixes but cured it 100 percent.

lastly we are now fine tuning the carb which is a little lean "also causing the heat issue" once this is done it should be very happy and outlast me.

the end result is im very happy. the motor is very tourqey and picks up revs real quick with the lighter rotating assembely. i was amazed how much heavier all the old school parts were compared to modern. we weighed them all. final horsepower i dont know yet but would guess around 400 at the crank. well best of luck and i hope this helped in some way.