Stockish 340 upgrades, cam needed
Now that we're getting close to an agreed combo........i guess i will throw and wrench into the gears.
So this eng is not for "the one making all the decisions".........but for his lady.........who wants (i'm *** u me ing) a fun spirited motor, aka all bottom end and probably even wanting some gas mileage(within reason)
That’s close to being an outer edge spring for a juice cam, with 120 pounds seat and 350 open. I expect that’s a deal where you break it in with only the outer springs and then immediately change oil and install the inner springs.
With a fast ramp(to take advantage of the head and get some lift in there.) it may make the Hyd lifter a little unhappy aka noise. and a quit Exhaust system will even add to that.
A mild cam (read lots of bottom end torque ) will raise the running compression and, my not be so happy on pump gas..............
Here is my thoughts.
These forged pistons are heavy and have a lot of crown or are vary thick on the top.
What about having(someone that knows what they're doing) cut a "dish" in the piston top, opiset of the quench pad of the head.
If you could get 20 to 30 cc of dish, it could lower the compression down into the mid 9s or 10 on compression AND still have your .038"of Quench. Then you could install that torque cam........something that still has a lope to it but.......well, like the chry .474/280 cam.(have a custom cam built for the situation just giving an example of size)
Only thing this don't address is the potential of the ported SM heads. But i think the lady will have more fun driving it.