didnt GM start putting Ls1's in the 99 up silverados? 5.7? or was that 5.3? vortech or not?
didnt GM start putting Ls1's in the 99 up silverados? 5.7? or was that 5.3? vortech or not?
4.8, 5.3 and 6.0 are all based off of the ls1. parts are interchangable between the motors.
old mod list: H/C/I/N/E/G 408
new mod list: 5.3, gears/posi, mufler and tune : (
99 you could get the 5.7 vortech version then later on came teh 5.3 in the year model.
2007 CCSB Z71 VortecMax: Stock!
The early 5.7s were still the old gen II engines, not LS1 based.
2006 Superior Blue Trailblazer SS AWD, Stock as a rock
Sold: 2002 GMC Sportside Denali front end with a 2002 LS1, FLT level 5, Yank 2600, Trick Turbo, T76, Nelson intercooler, 60LB injectors, Warbro fuel pump, Eaton locker, Magnaflow, 3.42, Nelson Performance Tuning (speed density).
Sold: 1981 GMC LB RC 1500 2002 4.8L 4L60E 12 bolt 3.73 Richmond Lock Right AC PS Nelson Performance tuning
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