I have a cc306 cam and stock lt4 heads with slp shorties. How bad are these for this setup. Would I see a big improvement with long tubes?

 

Doubt you would see much gain at all with long tubes over the SLP shorties.

Brandon

 

any headers on an LT1 is a big improvment...if you have to go shorties slp 1 3/4's are the way to go

 

those are good headers they flow very comparable to long tubes the switch isnt worth the gain IMO.

 

Supposidly the power will be about the same but the LTs produce more low end torque.

 

I wouldnt go that far...definately the best flowing shorties though, many have made they switch from slp to Lts and noticed a big differance.

 

As with anything, your results may vary.

 

The new Pop Hot Rodding on the stands has a good exhaust article by David Vizard. That guy has tested more exhausts than anyone i've ever seen.

Hell i've seen a larger diameter header with the same runner lengths and a cam to match make MORE TQ down low and up high, esentially flatten out the TQ curve (like a supposed wider LSA will do) than a smaller diameter header and a bigger cam. Hmmm more HP after peak and more TQ before peak, sounds like more average power and a quicker car to me.

Bret

 

Which issue is it? I'd like to pick that up. TIA

 

It's got a big Aluminum Hemi on the cover with a King Demon carb on top. May 2005