LT1 block only from B-body same as F-body???
07-30-2009, 10:17 PM
#1
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LT1 block only from B-body same as F-body??? I'm sure I know the answer to this question but is a b-body LT1 block the same as F-body block?
just the heads were different right?
just the heads were different right?
07-30-2009, 10:29 PM
#3
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mine still runs perfect but a guy here has a block from a B-body that I can get for 50 so I thought I would pick it up and start a build and still drive mine in the mean time
Thanks
Thanks
07-31-2009, 04:18 AM
#5
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happened to me once at a junkyard... i got an "lt1" from a TA, turned out to be a baby lt1, i guess the last owner of that TA got tired of being beat, lol, and junked the car... anyways moral of the story:
make sure to check the casting numbers
327 on the side
5.7 on top
make sure to check the casting numbers
327 on the side
5.7 on top
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07-31-2009, 10:14 AM
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07-31-2009, 11:49 AM
#11
Yes, it looks exactly identical. You couldn't teall at all until you looked at the casting number in the back. Also all 5.7 LT1's have a big "327" cast into the sides of the block, if it's not there, don't buy it...
OP. The Bbody and Fbody 5.7 blocks are identical. Heads, cam, and acc's are different though.
OP. The Bbody and Fbody 5.7 blocks are identical. Heads, cam, and acc's are different though.
07-31-2009, 01:52 PM
#15
Pretty sure. You'd have to find a way to bore it from 3.76" to 4" if it can be done.
EDIT... I forgot that the 4.3 Baby LT1 has a 3" stroke and 5.94" rods. You'd have to swap cranks too. I'm assuming that the deck height is the same.
EDIT... I forgot that the 4.3 Baby LT1 has a 3" stroke and 5.94" rods. You'd have to swap cranks too. I'm assuming that the deck height is the same.
Last edited by ss.slp.ls1; 07-31-2009 at 02:04 PM.
Went to go take a look at the block I bought for 100 dollars a couple months ago....No 327 signs anywhere, took a measuring tape to the bores in a panic and 3.75 inches was read...."tear" 