Here are some discussions on headers:

the other guys headers

shorties vs. LT's

bassani headers

There are many more you can search in the archive. In general the best bang for the buck are the mid-lengths the least invasive and lowest performing are shorties and the LT's are pricey but have the greatest potential on 400+ rwhp vehicles.

Richard

 

I just installed some gibson stainless steel shorties on my silverado. Remove that poor excuse of a flat washer that some GM engineer designed for the steering linkage. It wacks the header pipe when you turn the steering wheel after you put your headers on and the instructions didn't mention this. Replace it with a plain jane round flat washer. When you see this crazy looking thing you'll say that guy had way too much idle time on his hand at the GM factory. It took me a while to figure out it was just a washer because the way it is shaped it looks like it has to do some REAL important job. Actually it is just a flat washer AND lock washer combined into one.

 

I just put some ASM LT on my truck, i can't tell you anything about all the other headers out there but these have a nice fit and finish. many have told me they are suposto be the best if you are going all out.

 

I HAVE A 02 5.3 TRUCK, WHAT IS THE BEST HEADERS TO PUT ON LONG OR SHORT? I KNOW THE LONG MAKE MORE HP BUT WHAT DO I HAVE TO DO WITH THE CATS IF I RUN LONG? RIGHT NOW I HAVE CAT-BACK FLOW MASTER,373POS,AIR BOX,HHP3,NX 100 SHOT,VET SERVO.

2002 SHORT BED
5.3 CHEV 1,000 MILES LAST NIGHT I RAN 1/8
ON STREET TIRES A 2.052 60FT 8.669 AT 79.642

THANKS FOR YOUR HELP!

 

I have Gibson shorty's on my truck and I noticed little gain with them. They also look like crap, rust. In the near future, ASM's are coming my way. Before I do that, I want to get a before/after dyno between the long tubes the the short tubes.

kent.

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by RODNEY:
<strong>I HAVE A 02 5.3 TRUCK, WHAT IS THE BEST HEADERS TO PUT ON LONG OR SHORT? I KNOW THE LONG MAKE MORE HP BUT WHAT DO I HAVE TO DO WITH THE CATS IF I RUN LONG? RIGHT NOW I HAVE CAT-BACK FLOW MASTER,373POS,AIR BOX,HHP3,NX 100 SHOT,VET SERVO.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I have the ASM's and all you need to do is cut the pipes before the cat. I needed to adjust the pipes because there was not enough room to weld the flanges to the cats. I also put some heat resistant material on my transmission lines because it was close to one of the header tubes. The ASM's are one of the better ones you will find out there!

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by RODNEY:
<strong>I HAVE A 02 5.3 TRUCK, WHAT IS THE BEST HEADERS TO PUT ON LONG OR SHORT? I KNOW THE LONG MAKE MORE HP BUT WHAT DO I HAVE TO DO WITH THE CATS IF I RUN LONG? RIGHT NOW I HAVE CAT-BACK FLOW MASTER,373POS,AIR BOX,HHP3,NX 100 SHOT,VET SERVO.

2002 SHORT BED
5.3 CHEV 1,000 MILES LAST NIGHT I RAN 1/8
ON STREET TIRES A 2.052 60FT 8.669 AT 79.642

THANKS FOR YOUR HELP!</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">damn your spraying a 100 shot with only 1000 miles. you have more ***** than me spraying a 150. i thought you were supposed to break in these engines a little?