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Discussion Starter · #1 ·
Anyone converted their 69-later BBC over to a newer style SI alternator? I'm looking for one that will bolt in (will fit the existing brackets) without too much trouble.

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1969 Caprice 4400LBS!!
454/M-20
12-bolt 4.10 Posi
13.45 @ 105
323HP @ 5200RPM
382lb-ft @ 3300RPM at the wheels!
 

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The 12SI will fit, I am thinking about changing the one on my 86 MCSS to a higher output one from a Pontiac Transport with rear air, it has 140 amp output.

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Leo Paugh
Maryland Chevelle Club #017
A.C.E.S.#3731
progress has little to do with speed, but lots to do with direction.
Maryland Chevelle Club
 

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163 Posts
Discussion Starter · #3 ·
Do you happen to have an exact part number for that alternator? Just trying to eliminate many trips to the parts store.

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1969 Caprice 4400LBS!!
454/M-20
12-bolt 4.10 Posi
13.45 @ 105
323HP @ 5200RPM
382lb-ft @ 3300RPM at the wheels!
 

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1,198 Posts
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