L03 mods
#1
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Car: 1991 Camaro RS
Engine: 305 T.B.I.
Transmission: 700r4
L03 mods
Hey guys, I would like to know what a good set of heads for the L03 is. I am going to rebuild the engine after having it bored .030" over. I will also be giving it a better camshaft, but still use the throttle body intake. No, I do not want to get a 350 as I want to keep some of the originality to the car. I will be getting the Edelbrock 3704 performer intake as well. As for the crankshaft, what do you guys think of Eagle Specialty Products? Oh and I almost forgot to mention that I will be getting headers.
#2
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Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: L03 mods
L98 cam, 081 TPI heads. Great idea to address the puny exhaust with a set of headers, y-pipe, and 3in exhaust will do wonders. Then drop a S10 torque converter, 3.42s and put in a shift kit you will have a lot better driving experience. I wouldn't spend a ton on a 305 so these mods are relatively cheap and will go over good with a 350 when you get bored of it.
#3
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Car: 1991 Camaro RS
Engine: 305 T.B.I.
Transmission: 700r4
Re: L03 mods
L98 cam, 081 TPI heads. Great idea to address the puny exhaust with a set of headers, y-pipe, and 3in exhaust will do wonders. Then drop a S10 torque converter, 3.42s and put in a shift kit you will have a lot better driving experience. I wouldn't spend a ton on a 305 so these mods are relatively cheap and will go over good with a 350 when you get bored of it.
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Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: L03 mods
305 is a waste of effort. Read this thread:
https://www.thirdgen.org/forums/tbi/...ost-power.html
https://www.thirdgen.org/forums/tbi/...ost-power.html
#6
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Car: 1991 Camaro RS
Engine: 305 T.B.I.
Transmission: 700r4
Re: L03 mods
I am perfectly content with a 305 rebuild as it is fairly cheap and it is just a daily driver. Nothing to show off.
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Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: L03 mods
The cam will work fine with the ECM ive read of numerous people doing it and it will definitely give it a boost. A custom chip would help though, talk with Brian @ Tuned Performance here on the boards I highly recommend him stand up guy.
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Car: 1991 Camaro RS
Engine: 305 T.B.I.
Transmission: 700r4
Re: L03 mods
How do I get into contact with him? I am a little new to this forum site
#10
Re: L03 mods
If you MUST keep the 305 (been there done that, no thanks) there's always the option of a vortec 305 out of a late 90s truck or express van.
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Car: 84 TA / 89 Formula
Engine: LS1 / L03
Transmission: T56 / 700R4
Axle/Gears: 3.73 / 3.27
Re: L03 mods
L98 cam, 081 TPI heads. Great idea to address the puny exhaust with a set of headers, y-pipe, and 3in exhaust will do wonders. Then drop a S10 torque converter, 3.42s and put in a shift kit you will have a lot better driving experience. I wouldn't spend a ton on a 305 so these mods are relatively cheap and will go over good with a 350 when you get bored of it.
#12
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Car: '92 Corvette
Engine: LT1
Transmission: ZF6
Axle/Gears: 3.45
Re: L03 mods
305 is a waste of effort. Read this thread:
https://www.thirdgen.org/forums/tbi/...ost-power.html
https://www.thirdgen.org/forums/tbi/...ost-power.html
Nobody GAF about the "originality" of most 3rd gens...and even less about one having a 305 vs a 350, unless you got some rare 1LE, 305, 5-speed car. You don't, so don't shoot yourself in the foot by getting hung up on worthless 305's.
Also, what crank? Why? No 305 TBI is going to make enough power to warrant a crank swap of any kind. Stock crank is way better than good enough.
#13
Re: L03 mods
Once it’s under the hood, no one is going to be able to tell a 350 from a 305. And probably won’t care.
You can tell everyone it’s a 305, if it makes you feel better.
You can tell everyone it’s a 305, if it makes you feel better.
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