6 years ago when I started my project I was collecting parts for a healthy street strip nitrous 406. I had a custom made cam ground that was selected by Dave Crower himself. I bought cam ,rockers, springs and retainers and even the .100 long valves to go with it. The whole motor project has been on the back burner for years since I built the budjet 383 that is in the car. I am thinking about putting this valvetrain in my 383 since I have it and its just collecting dust in my closet.

Dave said my car would run real good on the motor but absolutly fly on the gas. What do you guys think about it?

3500 lb Malibu

Solid flat tappet
in 283 adv. 252 @50
ex 296 avd. 264 @50
in .600 with 1.7 rocker
ex .597 with 1.6 rocker
112 separation installed on a 108 centerline

It would be in a 10.4:1 383
Dart 200cc EI heads
that flow
.300 194/150
.400 179/235
.500 266/190
.600 277/199
.700 286/207

Well, I think it sounds ok. You musta spent some time with those darts cause those are impressive numbers for the 200cc iron eagles. Anyways, I dont forsee any major issues. With that combination of the cam, heads, and static comp, youve got a setup that should run pretty well on motor with marginal street manners and it should allow for a healthy dose of nitrous as long as the shortblock can take it. The gearing, vehicle weight, and torque converter should be considered as well. What do you have for all that stuff, cause they may need some attention to really get the full effect. Still, the back half may need some updates to effectively put down the power with the new cam on the juice, but you wont know how the chassis will act for sure til its up an running and everything else is optimized.

Originally posted by greg_moreira:
Well, I think it sounds ok. You musta spent some time with those darts cause those are impressive numbers for the 200cc iron eagles. Anyways, I dont forsee any major issues. With that combination of the cam, heads, and static comp, youve got a setup that should run pretty well on motor with marginal street manners and it should allow for a healthy dose of nitrous as long as the shortblock can take it. The gearing, vehicle weight, and torque converter should be considered as well. What do you have for all that stuff, cause they may need some attention to really get the full effect. Still, the back half may need some updates to effectively put down the power with the new cam on the juice, but you wont know how the chassis will act for sure til its up an running and everything else is optimized. Yea, the heads are the only real thing I have going for me. With a baby hydraulic .500/518 234/244@50 on 108 I am running in the 7.60's-7.70's with 1.66-1.68 60's. They were done by a guy named Lloyd Elloit and valve work finished up by Trevor Johnson Racing Heads. Lloyd mostly does LT1 heads now and is one of the best in the country. He is a freind of mine and went ahead and did my Iron Eagles for an awsome deal.

The car is 3500 lbs now but would like to get it closer to 3300 when its goes in a diet (would't hurt if I could lose 10lbs either :D )
I know my current 3500 converter would not cut it. Dave said about 4500 would be the sweet spot.

I want to be in the 7.20-30's motor and 6.70ish on a 150 shot and still run pump gas. Am I dreaming or do you think it could happen if the stars were aligned right? :confused:

considering you are already well into the 7's, and we know your heads can handle more, I dont think its too much of a stretch to ask for close to 3 tenths with a camshaft and converter change, especially with the weight loss. I couldnt say how close you will be to your mark on the nitrous though, cause theres a lot of variables that will effect things. It all depends on the tuneup, when you use it, and how well the chassis handles it. Theoretically, that 150 shot should be good for a full second or more on the full 1/4, so it wouldnt be that far off to expect about a .6 gain on the 1/8.......Theoretically. But, like I said, it all depends on how early in the run(when) you hit the juice. Obviously, if you wait til the 1/8 mile marker to hit the button, your time on the 1/8 isnt gonna pick up on the juice. Know what Im sayin. And also pretty obvious, the sooner you can kick in the nitrous and use that extra power, the better it will run down the first half of the track. Thats why its hard to be too sure, cause you might be able to hit it just about right off the bat, or you might need to wait til your well into the next gear or whatever.... Anyways, as far as pump gas goes, it can be done. It basically all comes down to the tuneup and how comprehensive the whole nitrous/fuel system is. So once again, I wont say yes you can definitely do it, but I will say you could do it if you put the effort into it. I know 66 283(one of the other members) runs a radical amount of juice into an 11:1(I think its 11:1) big block, and is well into the 9's in a chevelle.....and on pump fuel so it might be good to pump him for some suggestions.

thanks Greg.
Anyone else have any input positive or negative?