318 power potential?

[Dustin The PcP]

Alright so I know there is a lot of speculation in this, and a lot of opinions. But I would like to see what everyone puts my engine at, I plan on taking it to the dyno in a couple of months, but that is when money comes in.

The current set up is

318 bored .040 over (Pistons do not sit down in bore)
.024" head gasket
61cc J heads with 2.02X1.60 valves
Cam specs are (Edelbrock performer RPM)
308/318 advertised duration
234/244 duration at 050"
.488/.510 lift
112 lobe separation
Roller rocker arms
Weiand high-rise dual plane intake manifold
Hooker headers 1 5/8
600 CFM carb
electronic ignition with orange box

With all of this plugged into DYNO2003 I come up with
389 torque at 4,000 RPM
356 horsepower at 5,500 RPM

I was being honest on everything when I plugged it in as well, as fun as it is to play with it.
I expect those numbers to be a little happy, but just curious as to what everyone thinks, have any more questions just ask.

 

[1wild&crazyguy]

If the cylinder psi is there...I guess 345-365hp with a broad tq curve peaking around 390-400 TQ

Thats conservative, other wise it sounds like it could be close to 380hp/412

 

[Dustin The PcP]

If the cylinder psi is there...I guess 345-365hp with a broad tq curve peaking around 390-400 TQ

Thats conservative, other wise it sounds like it could be close to 380hp/412

Well that sounds quite amazing, I will have to check what kind of pressure it is getting next time I am at the shop.

I also have a holley 750 double pumper waiting to for me to put it on, because everyone says it might be a bit undercarbed at the moment.
I am going to try it, but am unsure of the results and how much it will effect it.

 

[1wild&crazyguy]

It's a smaller bore 340 having those heads on it, so thats where my guess comes from, I know the cam will allow some rpm's so the heads work.

Its just a guess though.

 

[jerry6]

Well that would be very good , my 340 .30 over has 400 torque and 412 HP , don't have the specs off hand but if your 318 pulls those numbers it would be great

 

[jefflock]

Some of those very tricky Super Stock racers get around 425hp.