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05-01-2019, 04:26 PM | #1 |
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1936 LB marking
If a 1936 engine has an LB marking, is it visible with the intake manifold installed? Is it always at the front of the left bank?
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05-01-2019, 04:38 PM | #2 |
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Re: 1936 LB marking
On the ones I've looked at, the LB marking is visible with the intake manifold in place - front of the left bank....
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05-01-2019, 04:38 PM | #3 |
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Re: 1936 LB marking
I have 3 lb blocks, none marked---- perhaps the oil pan can tell by shape or hammer dents out to clear front main bolts
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05-01-2019, 06:09 PM | #4 |
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Re: 1936 LB marking
I have a LB engine in my '34 PU. There are no marking (LB) stamped on the top of the engine. Another LB engine we have has the LB stamped on the top of the block. Who knows what Ford did? Mike
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05-01-2019, 09:35 PM | #5 |
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Re: 1936 LB marking
The LB blocks i have seen the stamping on was visible with the intake in place and location of the stamping was near the front but not sure what side.
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05-02-2019, 12:27 AM | #6 |
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Re: 1936 LB marking
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05-02-2019, 12:04 PM | #7 |
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Re: 1936 LB marking
I have to ask, what is a LB block?
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05-02-2019, 12:37 PM | #8 |
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Re: 1936 LB marking
Chris, it's a 1936 21 stud flathead with insert bearings versus babbitt. 36 was the first year that the changeover started taking place.
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05-02-2019, 01:26 PM | #9 |
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Re: 1936 LB marking
Does anyone know the correct meaning of the term LB Engine?
LB LATE BLOCK ? LB LARGE BEARING ? LB LARGE BLOCK? I’ve heard different people say different meanings. Bob |
05-02-2019, 01:39 PM | #10 |
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Re: 1936 LB marking
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05-02-2019, 02:13 PM | #11 | |
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Re: 1936 LB marking
Quote:
I also have several '36 LB engines that do not have LB stampings on intake deck.
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05-02-2019, 02:37 PM | #12 |
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Re: 1936 LB marking
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05-02-2019, 02:39 PM | #13 |
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Re: 1936 LB marking
Beware of frauds stamping a reg block to get a better prrice.
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05-02-2019, 05:07 PM | #14 |
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Re: 1936 LB marking
From what I've read,the LB main bearing studs are 4-1/4 inches apart on center.
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05-02-2019, 05:42 PM | #15 |
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Re: 1936 LB marking
Okay I hope I get this right but hopefully Brian will chime in to correct me. New Zealand 36 LB engines out of Canada have a hole in the front of oil pan rail about 1/2 diameter at front between water pump & crank seal casting opening in front of block. Very easily distinguished
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05-02-2019, 05:56 PM | #16 |
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Re: 1936 LB marking
That sounds like the crankcase vent. The venting was added in 1935 which was the same year that the large bearing change came about in late 1935. Water pumps were in the head unless you mean the engine mount spigot for water inlet to the engine.
Main bearing bolt or stud distance apart is the best way to know for sure. |
05-02-2019, 06:02 PM | #17 |
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Re: 1936 LB marking
Not crank case vent
It’s in casting space between water inlet & crank seal |
05-02-2019, 08:01 PM | #18 |
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Re: 1936 LB marking
I think it means Liner Bearing.
I also have one with no LB stamp. |
05-02-2019, 08:40 PM | #19 |
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Re: 1936 LB marking
It's been said they were only marked with "LB" if the engine was serviced in a rebuild or such after leaving the OEM factory.
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05-02-2019, 10:07 PM | #20 |
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Re: 1936 LB marking
Great info guys!
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