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400 dart shp build

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Old 10-30-2013, 08:03 PM
  #21  
76strokervette
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Adding more pictures and hope to assemble the top end this weekend. Pictures are head and intake ports and quick engine mock up.
Thinking about running on engine dyno to break in and see what it will do.

Last edited by 76strokervette; 10-30-2013 at 08:13 PM.
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Old 10-30-2013, 08:16 PM
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last picture
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Old 10-30-2013, 09:38 PM
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You get your profilers from Chad? Dyno would be interesting.
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Old 10-31-2013, 08:30 AM
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My pro-filers came directly from the factory.Pro-filer let me send the matching springs and other parts to match my camshaft.Chad is very good to deal with, he just didn't have the casting I needed when the heads were ordered.The port matching I did in my garage.
I also did some work in the plenum and will post a picture later.
The gasket pictured is a fel pro 1206.The victor jr is probably maxed out where I'm at or close to it.
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Old 10-31-2013, 09:14 AM
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Looking forward to your final results!
My build is similar-
409 SBC (400 + .040), 10.6 CR, Profiler 195 heads (wanted low end torque vs high end horsepower), Lunati # 60140 solid flat tappet, Scorpion 1.6 rockets and 1 3/4 full length headers running an SS700 5-Speed w/3.70 gears.
I've been messing around with a bad SS830 carb (on a PP Air Gap knock-off) so I haven't had a chance to wring it out yet.
Would love to compare final results!
Elm
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Old 10-31-2013, 10:58 AM
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Did your VJ manifold line up with your head ports? It has been my experience that the ports are off and you end up porting to the head and not to a gasket size.

I mean bolt the intake on and look down the port with a bore scope or hand mirrors with a bright light. Some of the intake ports are often off in the fore and aft direction
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Old 10-31-2013, 05:23 PM
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I checked in the mock up picture and everything lined up.
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Old 10-31-2013, 05:35 PM
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The pro-filer castings fit a 1206 gasket very well as cast and they only need a little work in the corners.Blending of heads only took about 10
minutes a piece.The intake on the other hand is a different story.I had to raise the intake ports by 5/16 of an inch.
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Old 11-01-2013, 12:12 AM
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When port matching an intake manifold........ You have to hog it out inches up into the port..

The port including the head has to consistently reduce in area to create a ram effect without slowing the speed of the flow.


VJ intakes have a flat bottom plenum. Instead of a correct directed flow. In the old days they added turtles epoxied in to help the equalization of flow. Edl intakes like your 5/16th off is why I would not buy them.
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Old 11-01-2013, 12:45 AM
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Flow numbers for the heads?
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Old 11-01-2013, 08:02 AM
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The 210 heads have tested at 304 cfm with 2.08
valves.And this is as cast.
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Old 11-01-2013, 08:08 AM
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Originally Posted by 76strokervette View Post
The 210 heads have tested at 304 cfm with 2.08
valves.And this is as cast.
That is really good numbers. The older AFR 210 race ready with 2.08 valves was 286 cfm intake
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Old 11-01-2013, 11:24 AM
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That should make for a healthy engine.
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Old 11-01-2013, 11:39 AM
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header studs are the best idea for aluminum heads.

This is shown with a used FelPro blue steel header gasket in place on AFR 210 heads on my present 383

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Old 11-01-2013, 04:25 PM
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Very nice,did you also go with the 12 point nuts for extra header tube clearance?
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Old 11-02-2013, 04:49 PM
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Originally Posted by 76strokervette View Post
Very nice,did you also go with the 12 point nuts for extra header tube clearance?
The black 3/8ths hex nuts
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Old 11-02-2013, 08:58 PM
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Are you using the Howard's street series hydraulic roller lifters? If so, be prepared for serious noise in the valve train, to the point you'll think everything from rod knocks to piston slap. No matter where they were adjusted, they were really loud. I finally got the guy at Howard to admit that they are noisy due to the valving. I couldn't stand it and replaced mine with Comp Cam units. I'll guess they will probably work OK, but I didn't leave them in to find out.

Nice build, hope all works out good for you.

Hi George
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Old 11-03-2013, 10:22 AM
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Which cam and lifters did you use?I know the higher end lifters are made by morel.
Thanks,
Dave
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Old 11-03-2013, 01:47 PM
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Originally Posted by 76strokervette View Post
Which cam and lifters did you use?I know the higher end lifters are made by morel.
Thanks,
Dave
I was using the Comp XR288HR with the Howard lifters. I just swapped to the Comp 853-16 lifters on the same cam and all the noise went away. Both brands spec about the same and are good to about 6500 rpm. I've run a little higher than that on occasion and never had a problem.
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Old 11-17-2013, 02:19 AM
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Made a little more progress now that intake is back from plating.
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