Is our stock throttle bodies 70mm on a 5.3?
#2
TECH Enthusiast
iTrader: (3)
Join Date: Nov 2005
Location: West Des Moines, Iowa
Posts: 655
Likes: 0
Received 0 Likes
on
0 Posts
Stock is 78mm on 4.8/5.3/6.0 trucks. I believe ported ones are better judging by my own personal results with modifying them, but others disagree. It depends on what extent that the TB has been ported/polished though. Some people polish the aluminum to a shine and call it good without removing the tumble lip that's in there, or without removing the front half of the throttle bar... without those two things polishing it is useless.
Also, ask what they used to port it with. If it's a dremmel job, back away. A dremmel would take HOURS to a proper job and would most likely end up with a half ported TB at best.
Also, ask what they used to port it with. If it's a dremmel job, back away. A dremmel would take HOURS to a proper job and would most likely end up with a half ported TB at best.
Thread
Thread Starter
Forum
Replies
Last Post
Blackrat48
GM Engine & Exhaust Performance
2
07-08-2015 05:28 PM
GreyChevy
Tuning, Diagnostics, Electronics, and Wiring
1
07-07-2015 08:57 PM
Gadgetized
GM Parts Classifieds
0
07-07-2015 04:40 PM