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Old 12-16-2012, 12:46 PM
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383 build

I have a 350 short block -5 cc flat tops eagle balanced rotating assemblies.I'm thinking on putting on dart iron eagle top end kit 200cc 64cc heads bual plane intake.and lanati 489 lift 268adv dur Holley 650 dp carb short headers flowmeter 40s and msd hei this is going in my 94 s10 in spring what do you all think of this setup it will be street strip car more street what power do you think this will make of what would you do differently thanks

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Old 12-16-2012, 12:49 PM
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Myself,I would use smaller intake runners for a mild engine.If I wanted those heads for some reason I would use a 750 carb. I dont know what your goals are for this package.sounds like a little over 400 HP,not enough information IE: head flow and cam part number or specs
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Old 12-16-2012, 01:33 PM
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Ok this is 350 not 383 I have the short block now was planing the rest of build.so I should use the .180 cc what cam do you think this is going to be street strip just looking for ideas something like 400 hp and 400 torq good street strip motor will run91 or with this short block what would you do for 400 hp 400torq this is for 94s10 5speed 410 rear 28 tall tires

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Old 12-16-2012, 02:06 PM
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Quote:
Originally Posted by ithooks View Post
I have a 350 short block -5 cc flat tops eagle balanced rotating assemblies.I'm thinking on putting on dart iron eagle top end kit 200cc 64cc heads bual plane intake.and lanati 489 lift 268adv dur Holley 650 dp carb short headers flowmeter 40s and msd hei this is going in my 94 s10 in spring what do you all think of this setup it will be street strip car more street what power do you think this will make of what would you do differently thanks
Cam seems really small but adv does not really mean it is directly attached to a measurement its more of a markets guess. Used to mean something but maufactures kinda say what ever they want these days.

I am assuming you are running a carb or will this be efi. Not sure how much the efi can be programmed with a large cam but for carb i would go alot bigger.

With those heads 200/210 cc intake runners the bigger carb and some thin head gaskets like felpro 1094s depending on the deck hieght. With good compression and a nice stall i would use a comp magnum 294s its a single pattern cam and will make the truck really pop off with the right gearing. That is a solid cam so will need proper valve train or get a hyd cam in the same basic size. I think the 292h is similar.

You may also want to make sure the cr is not to high for any cam you choose. The 268 could be as small as 218 @ 50 and could easily give a dynamic compression ratio beyond the limits of pump gas.
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Old 12-16-2012, 02:13 PM
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Edelbrock sells a kit for 410hp maybe that is a better bet for street motor. It all works well and runs smooth. 294s may be a little too bumpy for street use with the 350.
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Old 12-16-2012, 02:20 PM
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I too would use a solid cam.If you use a flat tappet cam,read the pages with 300 duration(advertised ) and .500 lift. You need to know your CR so you can figure when the intake valve closes.If the heads have a good intake/exhausr flow ratio,then use a single pattern cam.
If you use a carb then use a 750 HP.
should run low 13s high 12s
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Old 12-16-2012, 09:44 PM
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I believe you've painted yourself into a corner (screwed the pooch) by purchasing parts before you had the entire combination worked out.

64cc heads will produce a static compression ratio of 10.20:1, so you'll probably have to use aluminum if you're planning to run pump gas. 67cc heads will generate a 9.84:1 SCR that will still like aluminum better than iron and 72cc heads will generate a 9.33:1 which would work fine with iron heads:
Voodoo Hyd Cam Kit - Chevrolet Small Block 268/276 - Lunati Power
Intake valve closes at 39.5 degrees ABDC @0.050" tappet lift.

With the cam you have chosen, dynamic compression ratio (DCR) will be as follows:
8.74:1 DCR with 10.20:1 SCR.
8.49:1 DCR with 9.84:1 SCR
8.06:1 DCR with 9.33:1 SCR
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Old 12-16-2012, 10:14 PM
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If it is primarily a street motor, go with a shorter runner which will produce more velocity and therefore more torque, seat of the pants type power. A 294 or 292 cam may be too big for even the 383 for a street motor, definetly too big for a 350. It will run good at high rpm but will feel soggy down low and not have good street manners. if 383 motor go with somewhere between 220 and 230 @ 50 with as much lift as you can. The shorter duration will give better street manners but still make great power due to the high lift. If a 383 run a tighter lobe separation such as 106LSA. If a 350 run a 108 LSA and a cam of 216 to 226 @50. Use a dual plane intake and a 750 carb and it should pull hard. Try get somewhere around 10:1 compression but not any higher with iron heads. The matched Edelbrock packages run good as all of the components are matched together in a system which eliminates the guess work for you. Year One also sells some rebuilt 350 motors with 400 hp and 400+ lb. Ft of torque for approximately $3K to $3,500. They are good motors with a roller cam and aluminum heads. Good luck
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