Author Topic: Exhaust Manifolds #879 #178  (Read 613 times)

BowtieSweden

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Exhaust Manifolds #879 #178
« on: September 04, 2011, 07:13:23 PM »
Hi,

Does anyone have experience of Exhaust Manifolds 3909879/3916178 for Big Blocks,
those who are newly manufactured and sold by Tamraz or GM Restoration Parts?
Are they good enough to have on a 427/425hp?

//Gus
Camaro SS Conv. -69
Impala SS Conv. -67

1971ls6

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Re: Exhaust Manifolds #879 #178
« Reply #1 on: September 04, 2011, 11:49:47 PM »
Just put them on my Copo . The fit was perfect, no problem at all.
69 Copo 12.95@113 mph, 2.20 60ft on polyglas
71 LS6 vette 12.31@118 mph PSMCDR

BowtieSweden

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Re: Exhaust Manifolds #879 #178
« Reply #2 on: September 05, 2011, 07:10:12 AM »
Thanks, sounds good.
Not noticed any problem performance-wise?

/Gus
Camaro SS Conv. -69
Impala SS Conv. -67

1971ls6

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Re: Exhaust Manifolds #879 #178
« Reply #3 on: September 05, 2011, 11:37:03 PM »
This was a fresh restoration, so I had nothing to compare to.
69 Copo 12.95@113 mph, 2.20 60ft on polyglas
71 LS6 vette 12.31@118 mph PSMCDR