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#83698 12/26/14 11:07 AM
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OK!! 4200!! Who is running one. How hard is it to get parts. Does anybody have one with big cams in it. How about pictures or videos? I would like to be able to keep my options open on an engine. (I have a 292 and 700r4 for my car, still working on my car). Just want the best (HP,Torque) engine. Would like to hear and see a 4200 run. Thank y'all.

ABW #83701 12/26/14 03:57 PM
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You will find all your answers + a lot of helpful folks here ..

Vortec inline engine forum

Last edited by efi-diy; 12/26/14 04:00 PM.

51 GMC 4.2 turbo
Can't solved today's problems using the same technology/thinking that created them
ABW #83710 12/26/14 08:20 PM
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The forum that Marc suggested is your best bet for info.

For performance, most are using a turbo. As far as big cams go, you'll need a blank from Marc or Steve Polhill and send it of to CompCams to be ground.

Heres some videos.

http://www.vortec4200.com/videos.htm

https://www.youtube.com/watch?v=GfUhg2_fxRY

https://www.youtube.com/watch?v=ROhwCrS51dY


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