GM Sticks with Pushrods

[mik]

Originally Posted by smoo

Your logic is flawed and something a limp wristed Golf driver would come up with. Ford were one of the last to drop pushrods, well behind the euros and japs. I'm just trying to think how more technology made the 5.4 Ford the better engine 10 years ago... Heavy cast iron block, more valves to burn which it loved doing, expensive timing chain rattles with weak tensioners, and an engine that was so physically big it struggled to fit in one of the largest cars on the market. To top it off it couldn't even match the LS1 for performance. As for tractor engines you'll probably find the 4.0 (as much as i love it) is closer to one than this new small block Chev. Looks like the legend will live to 60.

the 5.4 cast iron block engine was actually a truck engine, the last version did the qaurter in 13.6 seconds and it`s smaller swept volume than the pushrod holden engine of which had it`s own set of problems, so perhaps we won`t bag the 5.4 too much.