Thread: 327 4 bolt mains?

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I am looking at buying a 327 out of a 1965 960 3-ton truck. I am told it's 4 bolt mains. Is this possible? Also, would it be steel or cast crank? HP? Any other info about this motor would be appreciated.

Thanks

None of the 327s were 4-bolt. If you see one it's a hybrid.

Originally posted by luke
I am looking at buying a 327 out of a 1965 960 3-ton truck. I am told it's 4 bolt mains. Is this possible? Also, would it be steel or cast crank? HP? Any other info about this motor would be appreciated.

Thanks

350 was 4 bolt mains out of the trucks

there is no stock 327 4 bolt mains, to get one people would go to a machine shop and have one drilled

Hey Southern Gent,
I'm also from orlando and have a 70 nova with a 83' 305 as well. Do you ever go to bithlo and run? I'm just now getting started on my first true "hot rod." But I'm looking for some people to cruise with and talk cars that are in my area. Get back to me if you want. Thanks!

Dallas , from TN, now in Orlando, FL.
70 Nova - 83' 305, ??' TH350, Fulllength Headers, 750cfm Qjet.
68 Dart - 318 bottom end, 273 topend, Factory A/C & P/S.

There were very few 4-bolt 327's....I have one I personally pulled fron a 69 1-ton truck.....lg jrn crank

most of them were steel.....3/4 ton and up came with a steel shaft...

Originally Posted by dr_bowtie

There were very few 4-bolt 327's....I have one I personally pulled fron a 69 1-ton truck.....lg jrn crank

most of them were steel.....3/4 ton and up came with a steel shaft...

In 1969 the 327 was just a 2 barrel engine.

You may have had a 350 engine from 1969. Casting numbers don't tell the whole story as sometimes the same basic casting was machined for different applications.
You will see some castings that were 2 or 4 bolt mains. I think in 69 the 350 and 327 used the same block casting.
I know some Vettes and medium duty trucks still had a small jornal crank in 68, GM must have been useing up late 67 parts in some early 68 productions.

Bob

Originally posted by dr_bowtie
There were very few 4-bolt 327's....I have one I personally pulled fron a 69 1-ton truck.....lg jrn crank

most of them were steel.....3/4 ton and up came with a steel shaft...

What are the block casting numbers?In all the information I have I can't find this.Are you sure?Maybe you are talking about a 427 tall deck big block chevy.

There were no 4-bolt mains on small journal 327 blocks, but the large journal 327's could have had 4-bolt mains because they are essentially a 350 block.

Originally posted by rumrumm
There were no 4-bolt mains on small journal 327 blocks, but the large journal 327's could have had 4-bolt mains because they are essentially a 350 block.

I would really like to know what block casting numbers these 4-bolt 327 blocks would have.

i have 2 , 4 bolt main 1965 327 engines. this site might help you
http://www.73-87.com/chevy_ids/blockid.htm

Originally posted by us_elder
i have 2 , 4 bolt main 1965 327 engines. this site might help you
http://www.73-87.com/chevy_ids/blockid.htm

Your one list has it listed the other one does not.

did anyone check out the early 327 4 bolt blocks that came in the vettes and i think that they were 375 hp

Those blocks did not have four bolt mains unless someone had the block machine for four bolt main caps. 327's with small journal cranks did not have four bolt mains from the factory. I know because I had one.

In 1965, my buddy and I bought a brand new 375 hp 327 short block from the Chev dealer. It did not have 4 bold mains. As I remember, it cost just over $300!!

mike in tucson

I have had several of the Vette 327 blocks-None were four bolt main.