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03-03-2005, 10:45 AM
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#1
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Join Date: Aug 2004
Location: Hillsborough, NJ
Posts: 3,200
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LB9 vs. LO3
The designations LB9 and LO3 simply refer to the type of intake system with the 305 right? The engines themselves aren't different? If I were to buy an LB9 305 and swap it out for my LO3, I could just put my old TBI on that newer engine right?
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I USED TO HAVE an 85 Camaro 305 4bbl, 90 Firebird V6, 97 Firebird V6 (10 speakers!). Despite the two family vehicles, 3 kids, wife and mortgage, I can finally realize the dream - 88 TA almost all stock... for now.
http://www.cardomain.com/id/untameddave
Wanted this -  , but ended up with this -  for free. Can't argue with free.
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03-03-2005, 10:52 AM
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#2
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12 Second Club
Join Date: Aug 2004
Location: Oradell
Posts: 8,368
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for the most part yea, however some "custom" wiring may be in order and you might have to get a different computer
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86 Camaro
88 Camaro
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98 Blazer ZR2
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07 Sublime Charger Daytona
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03-03-2005, 11:13 AM
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#3
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Join Date: Aug 2004
Location: Hillsborough, NJ
Posts: 3,200
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Yeah I'm just swapping out my seized 305 for a working 305. The ecm I have is already set for the TBI, I just need a new engine.
What year did they stop using the cold start injectors? Since mine is an 88 and the original engine, should I be concerned about getting an engine that does or does not have that cold start? Or is that cold start stuff just for a TPI?
__________________
I USED TO HAVE an 85 Camaro 305 4bbl, 90 Firebird V6, 97 Firebird V6 (10 speakers!). Despite the two family vehicles, 3 kids, wife and mortgage, I can finally realize the dream - 88 TA almost all stock... for now.
http://www.cardomain.com/id/untameddave
Wanted this - , but ended up with this - for free. Can't argue with free.
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03-03-2005, 11:14 AM
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#4
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Join Date: Aug 2004
Location: Somerset County
Posts: 5,559
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didnt the lb9 have better heads?
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1999 Corvette FRC
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03-03-2005, 02:48 PM
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#5
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11 second club / Moderator
Join Date: Aug 2004
Location: West Berlin, NJ
Posts: 7,148
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LO3 had swirl port heads, cams are different to a extent, but "peanut" cams can be found in Lb9s also.
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2001 Trans Am WS6 •SLP Loudmouth II •UMI Suspension •12.857 @ 109.57
1996 Trans Am WS6 •Pacesetter Longtubes •Strange 12 Bolt •Spohn Suspension •11.152 @ 123.85
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03-03-2005, 03:19 PM
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#6
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NJFBOA Co-Founder
Join Date: Jul 2004
Location: All up in your kool aid!
Posts: 12,235
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the heads on the LB9 were a slight upgrade and the later LB9 got the same cam as the L98 which is a slight improvement.
all of your tbi stuff will bolt right up. while you have the motor waiting to be swapped in you may want to get a qucik cam swap done. that is the biggest weakness of pretty much every stock small block.
later
tim
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03-03-2005, 11:51 PM
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#7
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12 Second Club
Join Date: Aug 2004
Location: Oradell
Posts: 8,368
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cold start is TPI, just hooked that up hehe
__________________
86 Camaro
88 Camaro
95 Impala SS
97 Trans Am WS6
98 Blazer ZR2
00 Corvette
04 CTS-V
07 Sublime Charger Daytona
10 Tahoe SSV
12 Tahoe LT
17 Malibu LT
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