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Old 05-21-2015, 07:19 PM   #1
FarmerSid
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95 Roadmaster 4L60E matted to 07 L33 5.3

Found a L33 5.3 for my 51 truck build. I have a complete and running 1995 Buick Roadmaster with an LT1 for parts. My original plan was to use the LT1 for my build but I think I want to go LS.

Can I use the Buick trans with the L33?

What other things should I get from the wrecker yard to use the L33?

Cheers!
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Old 05-21-2015, 07:26 PM   #2
jayoldschool
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Re: 95 Roadmaster 4L60E matted to 07 L33 5.3

Not easily. The 4L60E behind the LT1 has the old-style bellhousing on it. Try and grab the trans that goes with the LS.
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Old 05-21-2015, 07:40 PM   #3
FarmerSid
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Re: 95 Roadmaster 4L60E matted to 07 L33 5.3

Thanks Jay. Just the trans or anything else? The trans is from an 2wd iron block 5.3. Not the L33 engine.
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Old 05-22-2015, 09:52 AM   #4
aknovaman
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Re: 95 Roadmaster 4L60E matted to 07 L33 5.3

Only bell housing difference is you have to leave the bolt out at the 1 o'clock position.

You will need to get correct flywheel and program PCM for non-pwm operation.

It will bolt right up same as a th350 and 400.
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Old 05-22-2015, 07:57 PM   #5
clinebarger
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Re: 95 Roadmaster 4L60E matted to 07 L33 5.3

LT1 4L60E's in '95 have a PWM TCC solenoid, They also have a PWM 3-2 shift solenoid vs a "on/off" 3-2 on '96 & up models.

'95 is the ONLY year to use this arrangement, And ONLY in LT1 cars. '95 trucks were still Non-PWM.

I strongly advise against using a '95 PWM 4L60E behind any LS engine.
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Old 05-23-2015, 07:14 AM   #6
FarmerSid
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Re: 95 Roadmaster 4L60E matted to 07 L33 5.3

Thanks for the info guy's. So is there any particular year etc 2wd tranny I should be looking for? What other parts should I get with it? The L33 5.3 is out of a 2006 4wd truck.
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Old 05-23-2015, 08:29 AM   #7
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Re: 95 Roadmaster 4L60E matted to 07 L33 5.3

Use the correct flex plate for your engine. You can use 1999-up 4L60e with ease.

The older 60e can be used but I don't recommend it because of all the above mentioned issues.
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