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Reged: Dec 13 2008
Loc: Festus, Missouri
Penco 142 Supercharger
      #6338205 - Sat Dec 04 2010 07:39 PM Attachment (129 downloads)

Hey guys, does any bodiy now anything about these blowers? I have a 1968 Charger with set up on a 440 backed by a 727 with a cheetah manual valve body and 3:55 POSI. Fed thur a 750 AFB and a holley manual street pump. Would like to make a little more power and want to ad a/c. Can't find nothing yet on the web. Any info would be great. Thanks Moparts

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super street

Reged: Feb 21 2004
Loc: benn vt
Re: Penco 142 Supercharger [Re: HAMMER4406]
      #6339243 - Sun Dec 05 2010 11:04 AM

had one years ago never put on engine sold it on ebay,low boost setup small rotors dont know anything else

67 GTX 512 cu 727

dana 4.10 10.56 125.5

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Reged: Sep 22 2005
Loc: Chicagoland
Re: Penco 142 Supercharger [Re: jkgtx]
      #6341024 - Mon Dec 06 2010 03:59 AM

looks real similar to the b&m and weiand style. 142 is a little small as they are ci. sensitive. its not gonna make hardly any boost on a 440, it may even be restricting. that particular size was really intended for sbf 302 and the like.

67 Coronet 383 hogged out 906's 727 430 dana best 10.48 @126.80 1.47 60 on fogger
same car pump gas 605 wedge 9.98 @ 138.42 1.50 60 on wore out 9 inch radial slick ss springs and frame connectors its got more in it!!!
72 Newport 2 door 400 727
85 Ram 440 4 speed O/D 3.54 dana

Edited by chargerron69 (Mon Dec 06 2010 04:02 AM)

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I Live Here

Reged: Apr 09 2004
Loc: somwhere
Re: Penco 142 Supercharger [Re: HAMMER4406]
      #6350739 - Sat Dec 11 2010 06:52 AM

I have a Weiand 142...but its mounted on a 360" Chevy...I can make as much as 14psi...I have all the upper and lower pullies to where I can change the boost..

the Weiand "cavitates" bad close to 18,000 rpm rotor speed...I try and keep it no more than 17,000 ...what happens when you reach its limits is that the engine feels like it hit a brick wall..

as far as on a big block..yeah a bigger blower is alway better but it will still make least 10psi or more..depending on engine rpm and pullies used..if the rotors are good..

but I do have to say they were primarly designed for 6-8 psi

one more thing...from the bottom of the intake(sbc)to the top of the carb, its 11.5 inches..

I know its apples to oranges but its the blower application


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super stock

Reged: Mar 14 2009
Loc: bigfork mn
Re: Penco 142 Supercharger [Re: smokinwoody]
      #6360782 - Thu Dec 16 2010 09:48 AM

A good friend of mine runs a 144 holley powercharger on a smallblock chev and when we switched the pulleys and got over 10 lbs of boost it seemed to create more heat then power.

67' charger 499 RB
10.57 at 127

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