I had a 2000 ecsb z71 with a 5 3l also and it averaged about 2 3 mpg better.
Lq4 drive by cable throttle body.
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The idea was to run this modified 6 0l first with the 92 mm throttle body on the factory ls3 intake then again with the larger 102 mm throttle body using an ict 92 102 mm adapter supplied by summit racing.
I m beginning to think that they have a flaw to them.
I m not so sure about the electronic throttle bodies.
It had a cable actuated throttle body and also seemed to have more power.
Throttle control 2003 04 electronic drive by wire for most models.
Ran it for 2 years in my 98 silverado before pulling it to scrap the truck.
Buy ict billet ls throttle body adapter ls1 3 bolt intake manifold to ls3 4 bolt throttle body dbc lm7 lr4 lq4 ls6 l59 lq9 lm4 l33 lsx 4 8l 5 3l 5 7l 6 0l billet 551513.
Also now i m beginning to experience surging at partial throttle.
From f body to corvette sierra to silverado g8 to gto we carry everything for making power with your ls or gen v ride.
Lq4 chevy ls v8 fuel injection throttle bodies in stock with same day shipping.
1999 through 2002 ls engines.
Equipped with the 92 mm fast throttle body the modified ly6 produced 546 hp at 6 600 rpm and 494 lb ft of torque at 5 200 rpm.