Engine & Internal Chat about beefing up your Blazer's engine insides here.

4x4, 4.3L to ls1 5.3 need assistance

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  #21  
Old 12-30-2008, 09:41 PM
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Default RE: 4x4, 4.3L to ls1 5.3 need assistance

the swap motor mounts have slotted holes to adjust

 
  #22  
Old 12-31-2008, 04:38 AM
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Default RE: 4x4, 4.3L to ls1 5.3 need assistance

Looks pretty close to what the guy had, unless these have been updated... The guy did his swap a year or two ago.
 
  #23  
Old 12-31-2008, 08:44 PM
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Default RE: 4x4, 4.3L to ls1 5.3 need assistance

yeah holly crap this was a long time ago well that sucks lol
 
  #24  
Old 01-01-2009, 07:23 AM
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Default RE: 4x4, 4.3L to ls1 5.3 need assistance

If I keep the Blazer, I'm gonna try for a 6.0 with AFM or a 6.2
Depends on if I can get the transmission beefed up enough... Damned 5-speed being built weak!
 
  #25  
Old 01-02-2009, 01:04 AM
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Default RE: 4x4, 4.3L to ls1 5.3 need assistance

go with a T-56 and good luck finding someone who can Keep the AFM I don't even think current parformance can and he's the go to guy and the 6.2 i don't even know if the T-56 will hold up to it thats why they are running the Tremec 6060 six speed trans now. Also Aftermarket performance cams are hard to find for the AFM motor i remember hearing that the cams were different i know that the IV gen LS motor has a different 1 bolt cam instead of a 3 bolt cam like the gen III motor but i don't know about the AFM ones being different.
 
  #26  
Old 01-02-2009, 06:50 AM
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Default RE: 4x4, 4.3L to ls1 5.3 need assistance

I can't use the T-56... It doesn't bolt to the transfer case

And the cost to change the output shaft and tailhousing so it WILL fit... It's really expensive, lol.

Also, there's not a lot of extra performance stuff I'd be doing... Mine's a DD, and I'm in it for the fuel mileage as much as the power... My bosses 6.0L VortecMAX 4x4 gets better gas mileage than my the Blazer, lol.
 
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