340's.... you all are talking a 273 with a 4.125 stroke crank, right??? I bet you could take a lot of weight out of that crank during balancing.... wink

I bet a 318 with a 4.125 stroker crank (396) will stomp most Chev 396's.....

I have a 410 5.9 in the works.....



Retired, US ARMY 1973-1994
ASE mechanic, Electrical 1994-1997
Retired GTE/VERIZON/FRONTIER 1997-2015


Posting cheap tech help (CRAP) here since Nov 97, 1000's of posts, some may be good.

03 Suzuki Burgman 650(Burger King) Scooter
65 Formula S Cuda
78 Little Red Express Truck
98 Buick Regal (wifes car)