Headers
RE: Headers
Another good article I just found: http://www.carcraft.com/techarticles...ics/index.html
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RE: Headers
If our 4.7L V8s react like the stock Chevy 350 in the Car Craft article, we should expect someHP and TQ gain even at low RPM. Maybe less than the 5 HP and 11 Ft/Lbs at 2500 RPM since our engines are smaller. I guess I need to decide is it's worth the $$$ for myself.
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RE: Headers
...just saw a dyno test of a Chevy Tahoe 5.3L V8 with only headers and a TB spacer(paperweight) added. It gained 28 lb ft of torque. That's impressive and tells me it's worth the $$$. Ceramic coated will also reduce under-hood temp so I think I'll go that way.
RE: Headers
ORIGINAL: rick4dak
...just saw a dyno test of a Chevy Tahoe 5.3L V8 with only headers and a TB spacer(paperweight) added. It gained 28 lb ft of torque. That's impressive and tells me it's worth the $$$. Ceramic coated will also reduce under-hood temp so I think I'll go that way.
...just saw a dyno test of a Chevy Tahoe 5.3L V8 with only headers and a TB spacer(paperweight) added. It gained 28 lb ft of torque. That's impressive and tells me it's worth the $$$. Ceramic coated will also reduce under-hood temp so I think I'll go that way.