|
|
Posted by Chriscase [75.36.45.171] on Monday, April 02, 2012 at 09:32:18 :
In Reply to: modern pistons posted by clueless [201.202.29.210] on Monday, April 02, 2012 at 09:05:22 :
218 stuff does not fit into the big block.
Short stroke and big bore = more rpm = more power. Your 237 is the best flattie Chrysler built for that concept.
The two biggest design flaws in the flat head from a power stand point is poor breathing and a cam ground for gut wrenching torque rather than max horseies. Plus very wimpy valve springs that allow float very early.
Go to a dual carb or 2bbl setup, headers, and get the cam reground to longer duration. Cam lift is limited by the valve hitting the head, but maybe a bit can be gained there too. More lift = faster opening, which helps suck air in behind the valve. Stock valve springs have about 40# of seat pressure, modern engines have over 100, race engines closer to 200. Much revs to be gained right there.
Follow Ups: