Vortecpro 454 Peanut Port Engine Build And Drag Test - Chevelle Tech
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post #1 of 368 (permalink) Old Aug 11th, 15, 10:58 PM Thread Starter
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MARK
 
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Vortecpro 454 Peanut Port Engine Build And Drag Test

Several years ago I bought a 1968 Chevelle and rebuilt it from the ground up with the intentions of testing my engines. I never had much time to run this car, but always wanted to test my peanut port 467 in this car and now the time has come. I would like to share my build with pictures on this forum with the intent of showing what goes into finding a rebuildable core along with the machining operations and all the details, and finally the bottom line, a track test.

My goal is simple: to run a 6 second 1/8 mile elapsed time at a 2130 feet elevation track with my full weight 68 Chevelle with my 236 headed peanut port 467, which consists of 9.2 compression, 228 @ .050 hyd flattappet, dual plane intake, 850 Holley. I believe this will be very informative and give a lot of insight into how dyno data translates into track times. Please follow along, I've got my work cut out for me.

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post #2 of 368 (permalink) Old Aug 11th, 15, 11:10 PM
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Gary
 
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Re: Vortecpro 454 Peanut Port Engine Build And Drag Test

How much work do you do on the intake side of those heads mark?
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post #3 of 368 (permalink) Old Aug 11th, 15, 11:12 PM Thread Starter
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Re: Vortecpro 454 Peanut Port Engine Build And Drag Test

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How much work do you do on the intake side of those heads mark?
I fully port the intake and exhaust, and chamber, although you don't want to get them to thin. 1.88/2.190 valves.

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post #4 of 368 (permalink) Old Aug 12th, 15, 12:10 AM
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Re: Vortecpro 454 Peanut Port Engine Build And Drag Test

Peanut ports, 9.2:1, a relatively small 228 deg @ 0.050 cam. All nice mild street stuff. I'm hooked! Can't wait to watch as this progresses, as my favorite builds are the "underdogs" that use stock parts and stuff that others would consider junk.


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post #5 of 368 (permalink) Old Aug 12th, 15, 12:14 AM
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Re: Vortecpro 454 Peanut Port Engine Build And Drag Test

Will be following ...
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post #6 of 368 (permalink) Old Aug 12th, 15, 12:16 AM
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Re: Vortecpro 454 Peanut Port Engine Build And Drag Test

I guess a better question would be how much difference in port volume between the peanut heads and the 049s you do
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post #7 of 368 (permalink) Old Aug 12th, 15, 12:34 AM
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Re: Vortecpro 454 Peanut Port Engine Build And Drag Test

2130' elevation, really?? Whaz up wit dat??

Oh yeah, check your PMs Mark.

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post #8 of 368 (permalink) Old Aug 12th, 15, 3:03 AM
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Re: Vortecpro 454 Peanut Port Engine Build And Drag Test

following along!

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post #9 of 368 (permalink) Old Aug 13th, 15, 9:49 PM
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When do we get the results? A lot of people on the big block FB page are about to learn something
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post #10 of 368 (permalink) Old Aug 13th, 15, 10:00 PM
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Re: Vortecpro 454 Peanut Port Engine Build And Drag Test

I'll follow along too Mark..............

I would love to see a test on your 467/515 engine option sometime in the near future. I am interested in that one vs. building a 489 with your mild roller cam that is suited for factory oval ports.

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post #11 of 368 (permalink) Old Aug 13th, 15, 10:18 PM Thread Starter
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Re: Vortecpro 454 Peanut Port Engine Build And Drag Test

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When do we get the results? A lot of people on the big block FB page are about to learn something
Hopefully everything will go as planned. The core is being collected right now, pictures will follow, along with the complete build up, track testing will be done in Oct.


Pat, never received your PM.
Gary, never poured them, but I do port them with a sonic checker.

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post #12 of 368 (permalink) Old Aug 13th, 15, 10:33 PM Thread Starter
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Re: Vortecpro 454 Peanut Port Engine Build And Drag Test

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I'll follow along too Mark..............

I would love to see a test on your 467/515 engine option sometime in the near future. I am interested in that one vs. building a 489 with your mild roller cam that is suited for factory oval ports.

Charles
The 467/517 IS the engine you will see from the core to the machine work to the assembly to the drag strip run at a known verified weight in my 1968 Chevelle. The people that own these engines know they are very mild street drivers, this is going to be very interesting, and a few engine builders are quite skeptical of this package delivering the goods, a 6 sec 1/8 mile pass, as for me, I'am not worried one bit.

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post #13 of 368 (permalink) Old Aug 13th, 15, 10:42 PM
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Re: Vortecpro 454 Peanut Port Engine Build And Drag Test

Any chance you'd be willing to share some pics of the fully ported heads (w/o giving away any secrets of course). That's got to be a butt-load of time invested to hog those things out.

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post #14 of 368 (permalink) Old Aug 13th, 15, 10:45 PM Thread Starter
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Re: Vortecpro 454 Peanut Port Engine Build And Drag Test

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Any chance you'd be willing to share some pics of the fully ported heads (w/o giving away any secrets of course). That's got to be a butt-load of time invested to hog those things out.
Sure will, theres no secrets, as you know its just about doing the work. And as you will see it not just the heads, its every detail of the engine.

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post #15 of 368 (permalink) Old Aug 14th, 15, 12:22 AM
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Re: Vortecpro 454 Peanut Port Engine Build And Drag Test

The reason I asked about the difference between the peanut ports and 049 is that i was curious about the casting differences. I wanted to know how close you could get to a large oval port head before you ran out of metal.I allways wanted to know how well a later vortec l29 head would do when ported as well. Im very interested how it comes out
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