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Old 02-05-2012, 01:29 AM   #65
68GMCCustom
Truck and auto performance nut
 
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Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
Re: Dynatech MuscleMaxx Headers

those on the Dynatech page look like the ones but it appears they changed the part number as they were 115-909400 (30C) when I bought. Also they're not stepped, just straight 1 7/8" primaries x 3" collectors. The Summit pics show stepped and #5 cylinder passing over behind #7....unlike Dynatech's pic.

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Kurt -

'68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy
'72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close
'06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD
'18 Kia Sorento - wife's econo-driver
'95 Chevy S10 - reg cab shortbed, LS, 4.3, auto...

my '68's powertrain and chassis build -links broken
A surprise phase - carb to efi -links broken

Last edited by usmcchevy; 02-05-2012 at 09:58 AM.
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