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Old 11-19-2008, 02:14 AM
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Will she be a runner.

I finished obtaining all the parts (just got all the parts) for my next engine, SBC 400 2 bolt block, 0.30 over bore. . Scat 3.75 crank internally balanced for howards H. Beam 6" rods with speed pro Hyperutectic flat tops, hasting moly rings, stock oil pump and windage tray. Cam is a special Compcams grind 555 /555/ 290 dur. 110 VSA, Heads are GM bowtie 14011034 with under cut 2.02 /1.60 valves and trick flow springs and retainers, stainless 1.5 roller rockers with screw in studs and guide plates.. They flow right at 185 CFM. Manifold is Pro products crosswind intake and a holley 750 mech secondaries., HEI ignition. This should be a reliable street motor with low end grunt. Have a TCI turbo 400 with trans brake and 3800 stall coverter, rear is a 9 inch Ford 31 spline with strange full spool and richmond 4:86 gears. I hope this will run fairly good, I hope more for torque than horsepower. will be going into my weekend 1/4 pounder. a 2200 lb 40 Dodge truck with no fenders.

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Old 11-19-2008, 04:13 AM
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Studebaker, let me help you out some here. These heads will flow a ton more than 185 CFM (if you're talking about the intake runners). L31 Vortecs will flow 225 and these are better heads than the L31's. You may be confusing the number with the intake runner size, 184cc's.

Here's the Chevy blurb on 'em, although I can't find flow figures anywhere. If they flow more than any other iron heads like Chevy says, that means they will outflow the L31's.

"The quench areas beneath the spark plugs are filled to increase compression in competition engines. The intake valve seats are machined for 2.02" diameter valves; the induction hardened exhaust valve seats are finished for 1.60" diameter valves. The intake and exhaust ports are identical in Phase 1 and Phase 2 cast iron Bow Tie heads. The 184cc intake runners will satisfy the airflow requirements of most competition engines while enhancing throttle response and mid-range torque. In unmodified form, the Phase 2 Bow Tie head will flow more air than any production cast iron small-block head."

You may want to pour the chambers before you install the heads. Early heads were 67-68cc's. You may be thinkin' they're 64 and they might be.....pour 'em and make sure before you make any decisions based on final static compression ratio.

Last edited by techinspector1; 11-19-2008 at 04:18 AM.
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Old 11-20-2008, 02:31 AM
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My SNAFU, I was typing and meant CC not CFM. Thanks for all the good information, I sure hopes it runs good.
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Old 11-20-2008, 02:37 AM
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Quote:
Originally Posted by Studebaker
My SNAFU, I was typing and meant CC not CFM. Thanks for all the good information, I sure hopes it runs good.
I wouldn't want to be in the other lane against you.
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Old 11-20-2008, 08:01 AM
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I would have ran a little less gear and stall. You're going to have a lot of traction issues with that much power and that little weight.
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