Announcement

Collapse
No announcement yet.

4 bolt mains....

Collapse
X
Collapse
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous Next
  • #1

    4 bolt mains....

    Is it true that some f-bodys cam with 4 bolt LT1 mains and if so how can you tell other than pulling the oil pan.
    Also I am considering the LE1 or LE2, Lloyd said that the LE2 revving to 6500 RPM will take its toll on the short block at an accelarated rate, which I dont want. The LE1 revs to 6200.
    I want more engine longevity that a few extra ponies, looking at the LE1.
    I wish someone had real world comparison numbers between the two mods.
    1995 Z28 Convertible, 350ci LT1 73K miles M6.
    Dyno results: 301.5 RWHP 326.7 RWTQ
    Performance Mods 4.10 gears, AS&M CAI, MADZ28 tune, Borla catback, RK Sport mid-length headers, LT4 valve springs, CC pro mag 1.6 RR's, LT4 KM, MSD OVC wires, TB bypass, 160 t-stat, SLP clutch plate w/Kevlar dual friction disk, 52MM TB, TB air foil, 1LE aluminum driveshaft, ASP UD pulley, LS1 brakes w/ Hawk HPS pads, LCA's and PHB.
    Tags: None
  • #2
    I want to say they were LT4's not LT1's and very few were made.....
    just not sure my brain is working just yet to be sure
    97 TA, M6, JBA ceramic coated headers, Borla Cat-back exhaust, 1.6 RR, 160 Thermo, LT4 knock sensor, CAI, Bils, Hotchkis all around, GT rotors, B&M shifter, Magnecor wires, Granatelli MAF
    In the shop LT4 Intake and heads.

    Comment

    • #3
      Factory f-body LT1s should be 2 bolt mains. Replacement blocks were said to be 4 bolt. It is possible that a 4 bolt block or two made it into a production LT1. You cannot tell from the exterior of the engine.
      Rob B 95Z A4 Tech Page (Part numbers / locations, how to's, schematics, DTC's...) Home Page - shbox.com

      Comment

      Previous Next
      Working...
      X