Small Block & Big Block Chevy Specific Mouse & Rat Motor Discussion & Conversions

BBC/SBC conversion how to

Old 03-20-2014, 09:21 PM
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I'm pretty sure there are posts in there about v6 & ls1 cars converted to sbc too. Your main difference will be needing to buy an aftermarket k-member for a sbc OR save money and get a stock LT1 k-member. You should be able to find one for around $50.00
Old 03-20-2014, 09:26 PM
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My big question and what I don't totally understand is. If i got a lt1 k member will any 350 bolt to it? Like let's say if I had a 350 block From 78 or if I had a 350 block from 92 Will It Still Bolt Up The Same?
Old 03-20-2014, 10:32 PM
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Yes. Any small block chevy 350, 327, 400, etc. will bolt up to the k-member the same. There is one motor mount bolt hole (out of 3) that is not there on the non-lt1 blocks, but I haven't read where that was a problem for anyone.
Old 03-21-2014, 06:30 AM
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Ok cool thanks for the info. That was my only concern really. I was ready every where to use a lt1 k member. But then I thought you could use only a certain block....so 3 out 4 motor mounts will work what do you do about the 4th? Just fab one? Now what about a transmission...or does that depend on the year of the motor?
Old 09-20-2018, 04:47 PM
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Can i use a ls1 cross member in a 98 to intsall the bbc on (have a 97 lt1s
are too)
Old 02-29-2020, 05:24 AM
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Sucks when all of the photos are gone!
Old 03-04-2020, 07:35 AM
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sure does, are you looking to swap your car? I SBC my 95 and have a bunch of pics and info if you are interested.


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