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-   -   Peanut Port Drag Test (http://www.classracer.com/classforum/showthread.php?t=59591)

HP HUNTER 09-20-2015 07:35 PM

Peanut Port Drag Test
 
9 Attachment(s)
For several years I've been building 9.2 compression 467s with 236 peanut port heads, these engines use a 228/238/114 hyd flat tappet cam with a performer RPM intake typical HP was about 517-518 corrected HP, with about 560 TQ. Finally it looks like I will get to test one in my 68 Chevelle, 3720 pounds at a 2130 foot track. My goal is a high 6 sec pass in the 1/8 mile. Some pictures of the build.

impstocker 09-23-2015 05:01 PM

Re: Peanut Port Drag Test
 
That's cool. I always considered "Peanut Port" heads as No Good. How much RPM were obtained with those figures.

Those heads only came on "truck" motors, right? Could not build a traditional stocker motor because they never came in a passenger car, correct?

Will Lamprect
i/SA 65 Impala in progress. 396/935 "Oval Port"

Mark Yacavone 09-23-2015 05:18 PM

Re: Peanut Port Drag Test
 
90-92 SS Chevy pickup.
I don't know what the heads look like.

HP HUNTER 09-23-2015 07:40 PM

Re: Peanut Port Drag Test
 
Quote:

Originally Posted by impstocker (Post 483207)
That's cool. I always considered "Peanut Port" heads as No Good. How much RPM were obtained with those figures.

Those heads only came on "truck" motors, right? Could not build a traditional stocker motor because they never came in a passenger car, correct?

Will Lamprect
i/SA 65 Impala in progress. 396/935 "Oval Port"

There is some passenger car combinations legal with these heads. The cam is 228/238 @ .050, very mild, I did run it to 6400 RPM on the dyno, my peak power was around 6100 RPM.

impstocker 09-24-2015 07:59 AM

Re: Peanut Port Drag Test
 
HP, Do you know year and model Chevrolet came with these 454 "peanut Ports"
Right know i am checking Class Racer Info Guide.
Will Lamprecht

HP HUNTER 09-24-2015 08:36 AM

Re: Peanut Port Drag Test
 
Quote:

Originally Posted by impstocker (Post 483254)
HP, Do you know year and model Chevrolet came with these 454 "peanut Ports"
Right know i am checking Class Racer Info Guide.
Will Lamprecht

I've been told a 1975 Chevelle is legal, not sure it came that way though.

Chipper Chapman 09-24-2015 08:58 AM

Re: Peanut Port Drag Test
 
73-75 are allowed the 236 peanut, 90 454ss truck uses the 360 peanut, 91-92 uses the 148, even smaller peanut port. Seems to be plenty of SS/GT 454's using the 236.

Bench Racer 09-27-2015 09:39 AM

Re: Peanut Port Drag Test
 
I remember hearing that Lingenfelter ran a killer peanut port combination in SS back in the day.

Rick Leininger Jr. 09-27-2015 05:25 PM

Re: Peanut Port Drag Test
 
Quote:

Originally Posted by impstocker (Post 483254)
HP, Do you know year and model Chevrolet came with these 454 "peanut Ports"
Right know i am checking Class Racer Info Guide.
Will Lamprecht

1975 Chevy Bel Air, Impala, Caprice, Station Wagon, Monte Carlo, Malibu, El Camino.

1976 Chevy Impala, Caprice, Station Wagon.

HP HUNTER 09-27-2015 08:36 PM

Re: Peanut Port Drag Test
 
4 Attachment(s)
Ready to race.


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