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Old 03-29-2011, 01:38 PM   #1
HotRod73
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Need help identifying motor!!

Sold my old truck and just got me a 84 swb that's really straight and is lowered with I guess a 350 motor? Has center bolt valve covers and converted to carb with weiand stealth intake and edelbrock 1406 carb. I looked behind drivers head for casting number and all I could see was a gm stamp and it said 5.7 LG and then right under that SGI no other numbers?? I felt around and looked with flash light and saw nothing. Can anyone help me figure this out???
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Old 03-29-2011, 01:47 PM   #2
travo77
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Re: Need help identifying motor!!

5.7 is a 350
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Old 03-29-2011, 02:07 PM   #3
HotRod73
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Re: Need help identifying motor!!

I know it's a 350 but trying found out from what and what year etc
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Old 03-29-2011, 02:16 PM   #4
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Re: Need help identifying motor!!

Get the numbers off the pad at the front behind the alternator. The pads part of the block deck the heads sit on.

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Old 03-29-2011, 02:20 PM   #5
HotRod73
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Re: Need help identifying motor!!

V0524pla
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Old 03-29-2011, 08:56 PM   #6
sandorjoben
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Re: Need help identifying motor!!

should be another number stamped on the passenger side by the bellhousing the opposite side of the 5.7 LG SGI
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Old 03-29-2011, 09:34 PM   #7
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Re: Need help identifying motor!!

oh ok sorry the way you worded it made it sound like you weren't sure if it was a 350
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Old 03-29-2011, 09:37 PM   #8
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Re: Need help identifying motor!!

If the center bolt valve covers are original, it should be '87 or newer, they came out with the 1-piece rear main seal and TBI.
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