Lo3 rebuild... How much??
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Joined: Feb 2001
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From: Freehold,NJ
Lo3 rebuild... How much??
My engine has 106k on it. For some reason it still runs rather strong. Still throws you in the seat a lil. lol. How much are we talkin for a rebuild. Then after the rebuild is it totally safe to start modding the car? I also wanna know how many more ponies will a TPI give me? Is it worth putting on. Or just keep the TBI and work from there. thanks guy
Supreme Member
Joined: Apr 2001
Posts: 4,969
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From: USA
Car: yy wife, crazy.
Engine: 350, Vortecs, 650DP
Transmission: TH-350
Axle/Gears: 8.5", 3.42
Does it need a rebuild? Or do you want to mod the engine?
If you do, or have a shop do, a leak down test, or a compression check, then that'll tell you if you need a rebuild.
I have 175K miles on mine. I had a shop do a leak down test on it. They said it is loosing a little pressure around the exhaust valves, which is typical. Other than that, they said it's fine.
About the only other thing you'd have to worry about is the bearing clearances, but you can't just "check" that.
If your gonna do some ordinary mods, then you should be OK. If you get into more serious stuff, then it wouldn't hurt to tear the motor down and check all the clearances. That way all your money won't go straight out the exhaust pipe.
Or up through the hood.
AJ
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92 RS w/t-tops 305 TBI Auto.
170K miles and don't burn a drop o'oil
-K&N Truck filter #1500 w, open ele.
air cleaner
-Dynomax 2 1/2" cat-back
-B&M TransPak
-Jet Stage2 Chip
-180* T-Stat w/ 185* Fan Switch
-JVC CD--Alpine speakers & 4ch. amp
Rockford Punch 100. 1 - MTX 12" sub
If you do, or have a shop do, a leak down test, or a compression check, then that'll tell you if you need a rebuild.
I have 175K miles on mine. I had a shop do a leak down test on it. They said it is loosing a little pressure around the exhaust valves, which is typical. Other than that, they said it's fine.
About the only other thing you'd have to worry about is the bearing clearances, but you can't just "check" that.
If your gonna do some ordinary mods, then you should be OK. If you get into more serious stuff, then it wouldn't hurt to tear the motor down and check all the clearances. That way all your money won't go straight out the exhaust pipe.
Or up through the hood.AJ
------------------
92 RS w/t-tops 305 TBI Auto.
170K miles and don't burn a drop o'oil
-K&N Truck filter #1500 w, open ele.
air cleaner
-Dynomax 2 1/2" cat-back
-B&M TransPak
-Jet Stage2 Chip
-180* T-Stat w/ 185* Fan Switch
-JVC CD--Alpine speakers & 4ch. amp
Rockford Punch 100. 1 - MTX 12" sub
Supreme Member
Joined: Jan 2001
Posts: 7,164
Likes: 1
From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
If it still runs strong, then you don't need a rebuild and you can mod it as it is. Now of course it would be easier to change cams with the motor out and do headwork.
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"Putting any amount of money into a RICE BURNER is like wiping your a$$ with a turd. "
'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
3" Hooker CatBack w/Aero Chamber muffler
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat, just switched to 180* b/c of winter coming and going to college in the mts.
3:73 Posi
Rebuilt 700R4
B&M Megashifter, 5" Autometer Tach w/shift lite
------------------
"Putting any amount of money into a RICE BURNER is like wiping your a$$ with a turd. "
'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
3" Hooker CatBack w/Aero Chamber muffler
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat, just switched to 180* b/c of winter coming and going to college in the mts.
3:73 Posi
Rebuilt 700R4
B&M Megashifter, 5" Autometer Tach w/shift lite
Supreme Member
Joined: Jul 1999
Posts: 4,310
Likes: 1
Unless you are really bad on doing oil changes it has another 100k miles in it easy. If you want to swap it out, a L05 is $1500 from www.sdpc2000.com
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-Tas
'89 Formula WS-6
305, TBI, 700R4, P.A.W. 14x3 open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips, Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248)
Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
------------------
-Tas
'89 Formula WS-6
305, TBI, 700R4, P.A.W. 14x3 open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips, Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248)
Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
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