I was looking over Dixie's Rules. The engine rule states you can run a 602 Crate engine with a 4bbl carb or any 360 CI engine with a 2bbl carb.

The 602 Crate is rated at 355HP at 5000 rpm with a max RPM of 5500 plus or minus.
I have seen a 358" Chev engine make 400+ HP with a 4412. This was several years ago for a Toledo car.

I would like to know if anyone IS running the 602 Crate engine at Dixie and how did you do?

I know you can make up some differences with the better throttle response coming out of the corner with a 4bbl, but 50+ HP is really a lot to make up at the end of the straight......I think just the valve size difference alone is enough to sway towards the 2bb6 engine.

Gary

I do not believe there are any.

The 10.5-1 rule is the killer. Some of the Dirt LM 2bbl's are pushing 17-1 cr. If the guy made 400+ w/10.5 compression he had one hell of a motor. Run the lightest piston-rod-crank combo you can afford and have Crower/Isky recommend a good cam profile. They do many 2bbl combos.

We had 1 602 crate motor compete this year in the factory stock class at Kinross Speedpark against the 2bbl 360's.We had no weight rule on the crate car he was weighing right around 3000-3100 lbs on any given night.I will admit he was very competitive he did not win a feature this season but the motor performed remarkably well against the other motors I feel he had as much as them coming off the corners but they pulled him a little on the straits but being 200 lbs lighter he could out corner most of them and pick up the throttle sooner.

As far as price goes he had less than $4000 in the combination with the flywheel and clutch and headder combination.I'm sure lots of factory stocks spend over this on their 2bbl combinations

Bill

Well, the difference beings that Kinross will give a 200 pound weight break and Dixie gives zero. Between running a 1.94 stock valve head against Dart heads with 2.05's and a mechanical cam, there isn't any comparison between the engines.

Gary

I dynoed the engine myself and the compression wasn't more than 11:1. It's been quite a while, but I am thinking it made more than 440HP with my very old 650 2bbl carb.......

Gary

Take a look at what Kern County Speedway is doing to the built engine in their street stock division, they want the 602 crate engine to be competitive.


www.kerncountynascar.com/pdf/MelosGasandGearStreetStockRulebook.pfd

See 20SS-2.2.1

Overall Car Weight

See D. for built engine.

The same thing is also listed in the engine section.

The create motors pulled me down the straights at Whittemore when I ran their Invitational but I have a motor under 10:1 compression. In the limiteds at Kalamazoo and other tracks we have a 4bbl and it would get pulled just a little on the straights. The big thing I found is my car got around the corner so good and I was on the floor so early in the corner at Whittemore that as the race went on they didn't pull me at all down the straights non of the cars did they just held me up in the corners. I will bump the compression up in my 302 Ford before I go back over to any of them expensive 2bbl tracks.