do they section it to work on it?

Looking forward to seeing the new intake tests.

I wouldn't run them on a street car since I'm sure the polycarb would turn yellow over time. I designed the clear top just for dyno testing. It is nice to prime the engine and see if the oil is flowing on all of the rocker arms. It is also a nice double check to see if oil is spraying out from the rocker arms or just leaking out. You can tell if the side clearance on the rocker arms is correct by how much oil is spraying around. Just an easy way to double check things on a new engine. I don't think there is any need to use the clear covers on an engine that is working properly although maybe someone would like them just for the looks.

I don't think so but I do not know how they get the super nice finish all the way down the runners. The finish is very even everywhere. I don't have the motor skills to do anything close to this type of work.

Hey Andy,

What's something like the cost?

Thanks
Damon

The porting or the billet valve cover with the clear top? Wilson charged me $1000 for the porting on the intake. The machine shop charged me $600 for the valve cover.

Thanks Andy,

I was inquiring about the porting. Appreciate the info.

Damon

Here is an outside shot of a stock intake and then the second picture shows the outside of the ported intake. It appears that Wilson welded up the outside so they could open up the ports. The stock intake has almost an inch between the center runners while the Wilson intake has a V between the runners.

A comparison of the runner inlets shows how Wilson added width and height to the factory runners. The interesting thing is that Mopar could've designed the intake like this in the first place. Now that Mopar has stopped making this intake maybe someone like Trick Flow will take the design and run with it.

Is not the untouched one an RB while the ported one is a B intake?

No, they are both B intakes.

I read the thread and might have missed it but what is compression ratio on dyno mule

Had only one day to dink with these combinations.

Trick Flow 240, .030" over 440, stock stroke, 9.9:1 compression, 850 Mighty Demon, Edelbrock Victor and RPM intakes, Solid roller 238/242 @ .050.

Victor.....

500 lb-ft 3,300-6,100rpm
550 lb-ft 4,500-5,300rpm
562 lb-ft @ 4,800rpm
591 hp @ 5,900rpm


RPM........

500 lb-ft 3,100-5,900rpm
550 lb-ft

What numbers do you think they'd produce on a stock 383 short block??

not sure which engine you're asking about. My 470 has 10.5 compression.

Good info guys! Thank you. I would like to know the seat and open loads of TF "big" 1.56 spring???

1.560" O.D. dual spring with damper (TFS-16318)
240 lbs. @ 2.000" installed height
600 lbs. @ 1.280" open
500 lbs. per inch rate
.700" maximum lift

MD, here is a final picture. There is a gasket between the aluminum body and the lexan and then there is a SST beauty ring that fits over the top. So it is a four piece assembly.

Hey Andy that sure looks sharp.
With 10.5 static compression where do you like to see the intake closing?
Thanks.

Andy, that's a nice looking piece, it should be useful too. Instead of wondering how well the valve train is being oiled it can be verified without running it until parts are either smoked or survive the test of time. Thanks for posting a finished picture.

I haven't trained my brain to think in terms of opening and closing points. I'm more comfortable with duration and lobe angles. The cam that is in there now is 264/268 on 108. It is a good compromise between the 271 on 109 which seemed a little too big, and the 261 on 108 that seemed a little too small.