I am hoping to build a 383 lt1 stroker. The cam i have is a comp cams 07-503-08. Its got .335 and .340 lobe lift and 224/230 duration 112 lsa. I was planning to run a 1.6 rocker. Is this going to be too big of a cam for a stroker motor? I was also planning on running 2.02 1.60 valves. I was thinking of running 11-11.5:1 compression or so.
Is this feasible? I want the car to be streetable and i dont know if this combo is going to be or if it will even all fit togather. Also does anyone know what size injectors i should run? or where can i get the computer reprogrammed? Any advice suggestions or donations are welcome.

ps I hope this is advanced enough for this forum if not my appologies

 

I almost forgot. Its got a zex 125 shot on it.

 

These questions would be more suited for a gen spacific engine tech forum. Transfering to LT1 Tech, thanks.

 

that cam will be tiny in a stroker motor

all in all it depends on intended use of it!

what can you live with, what dont you want? etc.

IMO, i would be looking for another cam

tuning, www.madz28.com good for a mail order tune that will get you started. after that its best to be looking for a performance shop in your 'area' that has the ability to put your car on a dyno and tune it that way

injectors will be dependant on fuel requirements of the motor.
for that, we would need to know everything that is allowing air in. heads, TB, intake, final cam choice etc.

 

That is a pretty good size cam. the numbers there were lobe lift. if my calculations are correct with a 1.6 rocker the VALVE lift will be .536/.544. I think that cams a bit of a haus. the only one comp makes bigger is the 306 and thats just barely more lift. Do most stroker guys run custom grinds?

As for a throttle body im going to get the new nos nitrous plummed throttle body (58mm)

ported stock heads and intake

 

I had that cam in my 95 Z and it is not a big cam. It left me wishing I had went a lot bigger and that was in a stock cube motor.

 

Before you can even start talking about cams, you need to decide what you want out of the car (be honest with yourself), how much you want to spend and you need to identify what constraints you can/have to live within (i.e. emissions, driveability, etc.).

Without considering anything else, that cam IMO is a bit small, but my goals may be different than yours, as is everybody else who may opine on that particular cam. To really get the most out of whatever 'level' of 383 you ultimately choose, you really need to start with the heads and then choose a cam. This should really be a significant consideration even for the heads/cam swap guys.

Live and learn from my costly and frustrating mistakes.

 

As i said I plan to use ported factory heads and intake with a 58mm throttle body. I'd like to get the heads cut for 2.02 1.60 valves.

Streetability is my #1 concern for the car.
I'd like to make some good power i think id be happy with around 350hp at the tires na. With the 125 shot that should put it close to 450 at the tires.

I plan to do some drag racing but 95% of the cars time will be spent on the street (hopefully not in the garage busted)

I would like it to be somewhere approaching emissions compliant although i realize this most likely is a pipe dream.

Thanks for everyones input

 

With a decent tune, that cam should drive like stock, and sound like stock. Really small in a 383 motor IMO

 

As said by others, that cam is small for a 383. It will work, and it will drive really well if the tune is good.

On the heads, go with the 2.00/1.57 valves. You don't have to cut the heads to make them work and they are alot less trouble on LT1 heads.

Lastly, Comp can grind any cam they make to work in an LT1. All you have to do is ask.

Edit... You may look into a cam similar to the one I'm using.

224/236 @ .050
.535/.555 lift w/1.6 rockers
114 LSA

You can tell it's not stock, but it doesn't sound off like some of the other cams do. It pulls extremely hard after 2500 RPM, and it's made for nitrous/blower cars.

 

Well here is my 2 cents. I have a 383 with a set of ported stock heads and a 6 speed. I am currently running a comp cams 224/230 duration extreme energy grind 3192/3194 .605/.622 lift with 1.6 rockers. This cam makes 406 rwhp and is as streetable as a stock motor. It pulls to 6200 rpm on the dyno. On the N2O it just ran a 6.75 at 99.91 in the 8th mile last weekend. I am running 11.3 to 1 compression. I would highly advise looking this direction if you want a very streetable car that kicks a little A$$.

Michael

ps you could make more power but there is always a down side to everything.

BTW look in the drag racing technique for the video I posted last week for proof.