The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

Mike C · 08-25-2015, 08:50 AM

Heddman was the only header I could find that would work with the manual trans linkage when I put them on the Jimmy. I ditched them for 2 1/2" 'vette manifolds and could not be happier. My butt-o-meter shows about equal output on the top end with a little cam (Crane 266, 210 @ .050) and feels like it makes more low end torque. I went from 2 1/2" pipes on the headers to 2 1/2" on the manifolds which helped equalize the ouput I'm sure. Walker DynoMax Hemi Turbo mufflers were my choice. Nice sound with LOTS of sound deadening.
Posted via Mobile Device

08-25-2015, 08:50 AM	#10
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,714	Re: headers Heddman was the only header I could find that would work with the manual trans linkage when I put them on the Jimmy. I ditched them for 2 1/2" 'vette manifolds and could not be happier. My butt-o-meter shows about equal output on the top end with a little cam (Crane 266, 210 @ .050) and feels like it makes more low end torque. I went from 2 1/2" pipes on the headers to 2 1/2" on the manifolds which helped equalize the ouput I'm sure. Walker DynoMax Hemi Turbo mufflers were my choice. Nice sound with LOTS of sound deadening. Posted via Mobile Device