Here's the specs, as much as I can remember:

'77 350, 4 bolt, with 5.7" rods, and TRW Flat Top pistons.
unported Vortech heads, machined to accept .550" lift.
Edelbrock Performer Air Gap intake.
Edelbrock AVS 650cfm carb.
Comp Cams 12-246-3.
230/236 duration @ .050 lift,
.490/.490, and a 110* LSA.
1.5:1 ratio Magnum rockers.
~9.0:1 compression ratio

This goes through a 700-R with ~2200 stall converter, and a 10 bolt rear with 3:42 gears.

This will be going into an '85 Z28, and hopefully do better than the old 305.


--Dave

 

why don't you use desktop dyno.

I'm so tired of every other post here.

How much horsepower do you think i'll make?

What ET will i run?

no one here is going to be able to give you an accurate answer.

use a program like desktop dyno, or ASK the person who BUILT it.

 

Sorry, man. I DONT have DD, or for that matter, know anyone who has it. And the motor is not even built yet. If I built a motor, and someone with a similar setup was to post a question as to how much power it would make, I would give them an answer, without question. Read the subject, if you dont like it, dont click.

--Dave

 

Bewyn huh? I used to live in Brookfield and roll into Berwyn every now and again. Ever eat at Michael Anthonys on Ogden & Ridgeland, their food is killer!

Anyway, if you still have the heads off the motor I would suggest getting some bowl work done as you will see a real decent gain on the exhaust side, out of the box the Vortec exhaust flow is poor.

Check out these 2 articles, the cam, heads, and intake are same as yours, your power numbers should be close.

http://www.chevyhiperformance.com/te...841/index.html

http://www.carcraft.com/techarticles/81998/index.html

http://www.carcraft.com/techarticles...ort/index.html

 

First off, thanks for the info. I hadnt seen those articles (or at least remember them).
Also, yes. I have eaten at Michael Anthony's. The pizza is pretty good, but nothing copmpared to Denny's.

--Dave

 

Score yourself a dozen baked clams and a small thin crust!!!

Check out my 383 bro. It aint dialup friendly, so you may have to give it a bit if your not on highspeed.


https://www.thirdgen.org/techbb2/sho...hreadid=185260

 

ominous if you dont mind me asking do you know any of the power numbers on it? also how much did it cost (ball park) to put it together. I only ask because im not convinced that my 350 doesnt have some toast internals right now so if i have to rebuild it might as well do it performance. Looking at something probably in the 500 + hp but no more then 650 N/A and trying to figure out what im getting my self into.

 

19doug90

I picked up my 383 rotating assembley as a kit. Cast crank, forged i-beam rods, hyper pistons, rings, bearing, balancer, flexplate for ~850$. Having the block machined for the stoker crank was another 100$ on top of the rest of your typical machine work. So if you look at it like that it may or may not actually cost you anything more then a standard 355 buildup depending on what parts you were planning to buy. I put it all together myself.

Now if you get carried away and buy all kinds of forged internals that might not be needed your costs will double real easily. Then of course add the rest of your machine work if you are overboring and decking along with whatever other go fast parts you decide to hang off the block: heads, cam, intake, etc... for a grand total.

I plan to have ~450hp at the flywheel with a tq curve the size of Mt. Everest to go with it, not looking to spin my motor over 5800rpm. My Eagle rotating assembley is good and safe for 500hp and 6000rpm, running forged parts is something I never even considered as they are something I dont need.

 

Then leave.

What is the point of a tech forum if people cant ask questions? I think that they are very valid questions, also interesting, and alot can be learned by them. Maybe someone has a similar setup, that can be used as a baseline for this guy to work with. accurate, sure thier not always accurate, but neither is Desktop Dyno.

Personally, I think w/ less than 60 posts you havent been here long enough to get tired of anything.

Also, if you dont like the questions, dont read or reply to them.

Im done.

 

Agreed, scottland has no business opening his mouth. My bet is that he is just responding to get his post count up.

Look at some of his following posts, no room to talk as a simple search would have answered the questions that he asked.

https://www.thirdgen.org/techbb2/sho...hreadid=171665

https://www.thirdgen.org/techbb2/sho...hreadid=174474

https://www.thirdgen.org/techbb2/sho...hreadid=191458

*** those questions are so played out, its not even funny.

I nominate scottland for the following award due to his foolish and iritating comments.

 

Ominous, thats one clean looking setup. Someday maybe I will have a motor like that. Nice 'bird too. I like the black a lot.

--Dave

 

Thats some really good info. My car is at the mechanics right now and it has a really bad vibration coming out of the engine so by monday / tuesday ill know if i have a minor problem or am planning an engine rebuild. Ive never built an engine before but my friend is reasonably good with cars and is my guiding hand through everything i do. Wether i do this rebuild now or in a year or two from now it is definitly going to be done. I have to decide wether i want to come up with my own rotating assembly part by part or purchase it as a whole. Ill probably end up getting it as a whole but im actually going to start looking at some right now. My goal is to have an efi engine that will breathe until 6500 rpms and will be around 600 hp at the crank. It has to be daily driveable for the 5-6 months of the year that it will be on the road. The platform for the car is going to be that of a race car not a drag car. Id be hoping to do some auto-x and road racing with the car so having a good amount of torque for coming out of the turns is important but it also has to be able to breathe and pull well going down the straights.

now for my two questions.

#1 Is there any companies that you reccomend for rotating assemblies or for that matter dont reccomend. Im wondering mostly based on personal experience but if anyone has heard a lot of rumors about a certain company that would be welcome too.

#2 As for heads i dont even know where to start looking. Ive ran a few basic searches but havent come up with much. If someone could point me in the direction of either a good company or maybe even a certain set of heads that could achieve my goal that would be great. Once i figure out what heads i want i think i should be capable of planning most of the rest of the build by my self.

 

I have heard nothing but GREAT thing about AFR 195's. If you have the money for them, they would probably do good for you.

--Dave