+ Reply to Thread
Page 3 of 4 FirstFirst 1 2 3 4 LastLast
Results 21 to 30 of 38

Thread: 4.3 to 5.7

  1. #21
    Join Date
    Oct 2007
    Location
    connecticut
    Posts
    986
    damn, im glad u guys talked him out of swapping for an older motor....that would not have been too smart like everyone already said.
    02' silverado ext. cb 2wd , 5.3 liter 325c.i. LM7, ported and polished throttlebody with bypass, Jannetty Racing 87 octane dyno tune, cold air intake with custom ram air, Heavy duty built 4l60e with vette servo, Z-pac clutches, "The Beast" Sunshell, transgo shift kit, yukon 4.10 gears with true trac, custom exhaust with Moroso Spiralflow, no cats, MSD 8.5 race wires, NGK TR55's
    Quote Originally Posted by farmtruc View Post
    Damn dude, take it easy on yourself during personal wacky time lol.
    Sometimes it can get out of hand
    Quote Originally Posted by DamnYankee View Post
    Satan just called - hell froze over.
    Quote Originally Posted by pl4yboy View Post
    I take it like a virgin on prom night... I'm not happy, it hurts, but at the same time, I'm too drunk to care.

  2. #22
    will i have to get a differnt wiring harness? since my truck is a 5spd and the donor truck is auto?

  3. #23
    anyone know?

  4. #24
    ff_jeff Guest
    it should bolt up you might need a different driveshaft though... Call or email FLT and ask them to be sure... Finish Line Transmissions | Performance Transmissions | Torque Converters | Transmission Parts | Transmission Service

  5. #25
    ok im wondering about the plugs on the new wiring harness tho not the engine bolting to the trans

  6. #26
    ff_jeff Guest
    Maybe Redheartbeat ''gregg'' or one of the other obs guys can chime in... I wanna know too for my other truck.

  7. #27
    I figure ill have to get a flex plate or maybe use the one i have on the 4.3

  8. #28
    ff_jeff Guest
    Wait... I got confused by your name Thrasher88... I thought you were swapping a v8 into an 88. If I were you, And I planed on having a powerful engine, I would get at least a built 4l60e or 4l65e if not a 4l80e. yeah its auto, but these transmission shift quick, hard, and are consistent at the track. and the ls1 or the 5.3 would bolt right up and if you find a complete engine with harness. your swap would be easy. FLT can hook ya up with a kick ass trans... Duckysbht has the 4l65e and I rode in his truck and it kicks ass even more so with 7psi of boost.

  9. #29
    no im swapin a 5.3 in 05 that has a 4.3 and 5spd now.

  10. #30
    ff_jeff Guest
    Quote Originally Posted by thrasher88 View Post
    no im swapin a 5.3 in 05 that has a 4.3 now.
    right...

+ Reply to Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts