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Discussion Starter #1
If you had the choice (on a cammed LS6) to go with 1 7/8 longtubes or 1 3/4 Long tubes, which would you pick and why?

thnks

Joe
 

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+1 vote for 1-3/4. People tend to go too large on header diameter! Freud would probably have something interesting to say about this.
 

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MTI did some testing and they found that the smaller header to get better scavenging isn't always the case. They consistently make more HP in H/C cars using the 1 7/8 header over the 1 3/4 header. :guiness:
 

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Discussion Starter #7
Im sure I'll get used to 410 rwhp as it sits right now. On top of that the difference in price between the two is only 75 dollars so maybe thats the best choice for me (1 7/8). In the mean time though...will I lose tq by going with the larger diameter?

thanks

Joe
 

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No...you shouldn't lose any tourqe. The 1 7/8 header test that MTI did showed no loss in tourqe. I wouldn't put any header on a modified heads or cam car but 1 7/8 headers. In fact...that's pretty much all that MTI installs now. :cheers:
 
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