Topic: 2bolt or 4bolt main?
in Forum: C3 Engines
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I know this has been asked before,however I would like to know if anyone has taken a 75 350 165hp motor apart? If so do you remember if that motor is a 2or4 bolt main.I want to find out as much about this motor so I can plan the rebuild.
Thanks Rick
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can you give us the engine codes and casting number ?
if so we can tell you which it is
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My money is on it being a two-bolt. GM wouldn't waste a 4-bolt block on the low horse engines...unless there was a shortage of the 2-bolt blocks at the time...
btw...my '74 L-48 IS a 2-bolt...Adams' Apple 2008-08-19 21:19:58
btw...my '74 L-48 IS a 2-bolt...
Joel Adams
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As Adam said: "GM wouldn't waste a 4-bolt block on the low horse engines...unless there was a shortage of the 2-bolt blocks at the time."
And you could never be sure. It is a simple job to drop your pan in the car and take a look. Just unbolt the idler arm from the frame, and pull it down a bit, then unbolt the pan. Don't do like I usually do. Instead remember to drain the oil first. If you are planning a rebuild, you can probably put the pan right back up with the same gaskets.
And a final thought.... You can build a lot of power in a two bolt block.
Larry
And you could never be sure. It is a simple job to drop your pan in the car and take a look. Just unbolt the idler arm from the frame, and pull it down a bit, then unbolt the pan. Don't do like I usually do. Instead remember to drain the oil first. If you are planning a rebuild, you can probably put the pan right back up with the same gaskets.
And a final thought.... You can build a lot of power in a two bolt block.
Larry
in Forum: C3 Engines
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