Jayplace
Gold $$ Contributor
In one sense those were the good old days because it kept things on somewhat of a level playing field. On the other hand, much better parts are available now, and to everyone. With the current parts and a good engine builder an engine can be turned to higher rpm's than back in the good old days. You turned yours 7,000 which was pretty high, and more like I would expect a small block to run. But, as you know, V-Drives do like rpm's.You mentioned the iron heads.
Surprisingly, whe I ran Super Stock, I used the big square port Iron heads instead of the aluminum L-88 head. The reason was simple. They made more power.
In APBA Super Stock, we were allowed to run one of four engines. The 427 L-88 Chevy, The 426 Chrysler Wedge, The 426 Chrysler Hemi, or the 427 Ford Tunnel Port.
The vast majority ran the Chevy.
These were suppose to represent a Factory crate engine. Aside from tearing the engine down and bringing everything to specs, you could not do much of anything else. No head work or intake porting what so ever. You could run TRW replacement pistons as long as the compression did not exceed the factory specs. You could run any flat tapped cam, but you could not fly cut the pistons or sink the valves.
the oiling system had to be stock, or using a factory spec aftermarket pump. You could run an aftermarket pan.
The stock oiling system is why few ran the 426 Hemi. Unless you could highly modify the oiling system, they would blow. The Big Block Chevy, as most know, has one of the best engineered oiling systems made.
Another reason we ran iron heads was because of the head bolt pattern, with that big gap between 4 of the cylinders. The Factory Aluminum heads were hard to keep sealed there. With the SK and K Boat engines, you could braze a boss in the valley and place a bolt in the intake port floor of the aluminum head. It was not legal in SS.
We even had to run the factory stamped steel rocker arms. If one got hot and stated galling up during a race, it would pull the rocker stud boss right out of an aluminum factory head. That wasn’t a problem with the iron heads.
We generally ran the SS motors at around 7000 rpm. A good one probably made an honest 500 hp.
Speaking of the Open Chamber iron heads, the person who does my heads told me the iron heads will flow almost as much as many of the newer aluminum heads when worked on. He doesn't like to work on them because they take so much more work than an aluminum head. I had him do the iron heads on my Hallett and he does charge more, but for durability, they hold up very well. Over the years, the aluminum heads on my Cole have show deterioration in the water passages that won't happen near as much as iron heads.
When you were running yours, I knew almost nothing about Circle Boats. I enjoyed them when saw them though. Did you ever run at Town Lake in Austin?
When I got my Cole, which was around 98 or 99, I got involved with some serious racers and built mine to run the 9.0 class, when they ran 1/4 mile. Due to friendly rivalry, I ended up getting a blower and blew through my original goal.