'76 Laguna S3 Conversion from SBC to BBC

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'76 Laguna S3 Conversion from SBC to BBC

Post by BAS-Sr on Mon Jun 11, 2018 6:40 am

OK, decided to go with a '73 454 in my '76 Laguna S3. Guy not too far from me has it and seems like a viable motor, originally a '73 passenger/Chevelle with a T400 behind it, rated at 245hp. I want something that will provide the extra torque but not too much HP, going with a 200-4R from an '87 Monte SS (CZF) which can handle the 454, do 3.73's in the rear little later. Main thing at this point is to get the S3 under its own power.

Now the fum part, need some help with what brackets (power steering, AC, Alternator) I will need for the conversion from the SBC 350 that was stock in this!

Any part numbers and pic's would be greatly appreciated!

Here's a pic of the 454.....

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Re: '76 Laguna S3 Conversion from SBC to BBC

Post by Limey SE on Mon Jun 11, 2018 6:24 pm

Man Lucky you Im stuck with the 305 build for now

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Re: '76 Laguna S3 Conversion from SBC to BBC

Post by REVINKEVIN on Tue Jun 12, 2018 7:52 pm

Hey. I am doing this right now. They have a lot of different brackets. I will post a pic when I get home. The motor mounts are a itíll different as well. More to come.
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Re: '76 Laguna S3 Conversion from SBC to BBC

Post by REVINKEVIN on Tue Jun 12, 2018 9:18 pm

Hey. Here is an old post I had. It has some bracket info.

http://www.g3gm.com/t11483-big-block-chevrolet-bracket-and-pulley-locations
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Re: '76 Laguna S3 Conversion from SBC to BBC

Post by Sinister on Fri Jun 15, 2018 11:33 am

Exactly why I try to buy a vehicle currently carrying a big block.
Running around chasing brackets is crazy.
Probably a good business opportunity..remaking lost brackets..lol
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Re: '76 Laguna S3 Conversion from SBC to BBC

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