audiec

I went with the more beefy short block in the event I later wanted more power. My engine was spec'd using the Dyno software. I wanted as much HP as possible but I did not want a big high lift cam shaft sound with bad idle and poor vacuum.

So what we came up with was a all forged short block with:

4340 Eagle Crank
Weisco flat-top pistons
4340 H-beam full floating rods
.500 lift 112 lobe seperation roller cam
AFR 195 Heads
Speed Demon 750 with Vac 2nds

Runs and sounds like a big block, specs at 385 RWHP. Hope to get it dyno'd in the spring.

Audie

LFZ

could we get more specs on your cam? Sounds like a setup i went with..nice idle, but as much HP as i can get with what i have.

Lotus76

Thakns, Nice product great price... cheap insurance... $120

Lotus76

Thanks for the email

73jst4fun

Sounds familiar that suggestion...... maybe they will be a late gift..........

SmokedTires

I have a 388 which is pretty close to a 383

It has 4.125 JE custom forged pistons with Sonny Bryant "billet" small journal crank that should provide me with enough strength for any other crazy ideas I may come up with some day. The stroke is 3.625" so with the 6.0" small journal Crower Sportsman rods I get very little side wall thrust for less rotational friction and wear.

I too went with a solid roller custom ground Comp Cam. The part number is 12-000-9 which is the mechanical roller blank and the grind numbers are CS 4875S/4876S SR112+4. The lobe separation angle is 112 degrees. This cam has 4 degrees ground into it to improve the lower rpm torque so when it's installed at 108 degrees it will essentially be straight up at 112 degrees. The lift is intake .616"/ exhaust .622" with 1.6 rocker arm ratio. Duration @ .050 is Int. 248 & Exh. 254 . The cam timing events @ .050 are 16 52 63 11. This also compliments the 11:1 compression

The heads are AirFlow Research 210cc Race Ready. They come with 100% CNC ported combustion chambers, intake & exhaust ports. Valve sizes are 2.080 intake & 1.60 exhaust. Upgrades we ordered from the factory include Titanium Retainers, Pacaloy Valvesprings with .100L valve upgrade. I went with the 210cc heads because of my engine being only a 388cu in. I would have gone bigger for the added air flow, but I chose the 210cc to help keep the velocity intake charge up for improved torque & throttle response for street driving.

That's about it

Oh yeah, the half shaft safety loops are a very good idea

audiec

Cam Specs:

Part Number: 12-000-8

Custom Grind: CS 3109S / 3112S HR112+4


Intake Exhaust
Gross Valve Lift: .513 .510

Duration @ 276 290
.006 Tappet Lift:

Valve Timing: Open Closed
@ .050: Int: 2 BTDC 38 ABDC
Exh: 51 BBDC 1- ATDC

These specs are for cam installed @ 108.0 Intake Center Line:
Intake Exhaust
Duration @ .050 220 230
Lobe Lift .3420 .3400
Lobe Seperation 112.0


Sorry I took so long to get back to you...

Audie

VETDRMS

I have a big-bore 383...

AFR195-ported
10.7:1CR
XR280R Solid Roller
91 octane pump gas

I don't know how much power it makes, but my times are in my sig (at 4000' elevation).

SanDiegoPaul

Could be true but you can use Anti-Pumpup hydraulics. I used them on the L-82 motor I built for my Nova. Using a GM 962 Cam and AntiPumpups, that engine would run 6500 all day long. My shift points were 6500 and I drove that car -HARD- for 5 years before selling it to buy the C3

LFZ

thanks for the reply...your cam is smaller than mine..I like your setup...seems like a great combo for a nice street stroker.