Within Stock rules???

[Dan Fahey]

These engines are 1970 Pro Stock Engines!

[Tony Corley]

Originally Posted by Dan Fahey

These engines are 1970 Pro Stock Engines!

They are way more advanced than that, lol

Originally Posted by Dan Fahey

These engines are 1970 Pro Stock Engines!

Those engines are complete junk compared to what these cars have now. the 1970 pro stock engines were warmed over passenger car engines. Very good for the time but nothing compared to what these cars are coming with

[Dan Fahey]

Originally Posted by Todd Hoven

Those engines are complete junk compared to what these cars have now. the 1970 pro stock engines were warmed over passenger car engines. Very good for the time but nothing compared to what these cars are coming with

Bill Jenkins engines were massively modified.
Hardly warmed over!
Custom Tunnel Rams which look like todays COPOs.
The Cylinder Heads were cut and welded together.
Special Alloy Pistons..Rods...cams and stable rocker systems.
Systems to reduce parasitic drag such as dry sumps.
Stuff we all can buy right off the shelf!
The 327 cuin was about the largest SBC engine to make power/weigh with back in those days.
No magic because the principles to make power then the same today.

One exception; the Big Three used a clean sheet of paper to incorporate all the best stuff developed in the past.
Even that stuff is not perfect enough to get another half second of power.
Super chargers and turbos were after thoughts.
Today they are integral as and entire designed package.
Supercharged B/G cars with huge Superchargers are today's Supercharged Super Stockers.

Just with 40-50 years of technology packaged and reclassified!