Thread: 379 small block set-up check

Tweet

Thank you very much for your interest to my project.
maybe it would help us if I clarify a bit more my intention.

In my mind this engine is more for the track than for the street (track is just 4-5 miles from home). the engine is expected to support 9,000 rpm and I,m planning to use 8000-8500 top. The reason why (maybe by misknowledge)
I think that it would be easier to lauch the the car with 10" wide slicks if I don't push too much torque. Once the car is out of the box I was expecting good radical hp curve to do the job. For the stall 4500, I know it is a bit high for street but I hope that my trans oil cooler will help me cruise to the track.
The cam specs choice was the most uncertain thing in this set-up, It has been suggested to me by a race engine builder that have a fairly good reputation at the track. (by the way it is 1/8 mile track). I wanted to try it, and if it doesn't fit , it won't cost a lot to change.

Originally Posted by STREETNOVA

Thank you very much for your interest to my project.
maybe it would help us if I clarify a bit more my intention.

In my mind this engine is more for the track than for the street (track is just 4-5 miles from home). the engine is expected to support 9,000 rpm and I,m planning to use 8000-8500 top. The reason why (maybe by misknowledge)
I think that it would be easier to lauch the the car with 10" wide slicks if I don't push too much torque. Once the car is out of the box I was expecting good radical hp curve to do the job. For the stall 4500, I know it is a bit high for street but I hope that my trans oil cooler will help me cruise to the track.
The cam specs choice was the most uncertain thing in this set-up, It has been suggested to me by a race engine builder that have a fairly good reputation at the track. (by the way it is 1/8 mile track). I wanted to try it, and if it doesn't fit , it won't cost a lot to change.

You don't have enough compression to support that cam.
Does your engine builder know you have flat top pistons?
This engine has very bad mis-matched parts.
You either need to cut 20 degree's of duration off your cam at .050 or raise your comp. ratio to 12.5 to 1 as a min.
Also you don't have enough gear for the 1/8 mile.
With what you have planned you would need a 5.43 gear or more.

Here is an example of a max. effort pro-street 383 sbc.
This engine will make over 515 hp on pump gas along with 500+ lbs. of torque.
4340 crank,4340 h-beam rods, SRP pistons with a comp. ratio of 10 .5 to 1 on pump gas,comp. cam,#12-444-8 hyd. roller cam and lifters specs. are .562/.580 lift. duration at .050 is 248 intake,254 exhaust ground on 110 l/sI would be half tempted to try the same cam ground on 106 l/s,fully CNC'D AFR heads 180 cc heads acutal port volume is 190 cc's with 2.055/1.6 valves.Victor intake, flowed 750 double pumper.