Search results

  1. B

    What year did thunderbolt v replace IV

    On a 4.3l , my father in law bought a2004 tahoe, I believe the engine has been replaced. As out is a non vortec and has the thunderbolt IV ignition
  2. B

    land and sea tourque shift prop

    Does anyone have or know where to get replacement springs? Thanks in advance!
  3. B

    land and sea prop wanted

    I am looking for a land and sea 15-26" prop. thank you !!! e mail me with anything you have : satman8878@gmail.com thanks Bryan
  4. B

    1990 Alpha I water pump ?'s

    I just put a brand new rebuilt 4.3l in my 1990 chaparral, Took it out yesterday and it overheated, dropped the lower half took apart water pump and the veins are wore pretty bad, still touching the outside of the housing but wore over and starting to crack, my ? is the plastic tube that...
  5. B

    Rebuilding 4.3l

    Ok guys, I need some advice on cam selection for this motor, I have a 90' 19' chaparral I/O with a 4.3l in it, last summer i did a vortec head swap,4bbl carb and elberbrock intake that woke this little motor up tremendiously, well this winter the block cracked from the -15* weather.. Yes i...
  6. B

    4.3l Vortec head,intake,4bbl Upgrade!

    1990 chaparral 1900 4.3l Going to the lake today to test out the new heads,Elderbrock Performer intake and 4bbl carb, hit a few snags along the way with the swap from the old heads intake and 2bbl, had to make a custom throttle linkage bracket, custom fuel line, and had a hell of a time...
  7. B

    Arrrrrggghhhh!!!!

    I recently bought a used " Vortec intake and 4bbl carb and a set of Rebuilt Vortec heads off of e-bay to up grade my 1990 4.3l 2bbl to a Vortec 4bbl and net some much needed HP, well after reciving all items in the mail this week, last night i tore the motor down to the block, today installed...
  8. B

    4.3l non vortec to vortec upgrade?

    I have a 1990 Chaparral 19' 4.3l 2bbl alpha one, I just aquired all parts to do a vortec upgrade, I got vortec heads intake and 4bbl carb off of a 99 4.3l merc. had the heads redone and i need to know how to adjust the valves and what do i torque the rockers to? these are flat hydraulic lifters...
  9. B

    Gimbal Bearing ?'s Please help

    I have a 1990 Chapparel 1900 4.3l alpha one, I removed the outdrive to replace the bellows as the driveline bellow was leaking, had a large hole in it, no rust at all on the drive line and very very little milk in the outdrive oil, but I am worried about the gimbal bearing, it has inward/outward...
  10. B

    What CFM is this carb?

    This 4BBL came off of a 1999 stingray, 4.3l Vortec. I am wondering what CFM and brand it is if anyone knows? Thanks guys
  11. B

    4.3l Vortec upgrade

    Hello all, I have a 1990 chaparrell 1900se 19' I/O 4.3l with the 2b carb, I have just purchaced vortec heads intake and 4b carb off of a 1999, sea ray for $500.00 , I am wanting advice if i should drop a hotter cam in there while i am at it, and if so whitch one? I am haveing the heads redone at...
  12. B

    4.3l to 5.7l swap ?'s

    Hi all, I have been reading these forums for hours and hours on end, usually I come here to find answers and a little searching and I never even need to ask a ?. for the most part I see that this swap has been done a few times and some agree with the swap and some don't, I have a 1990...
Top