What is the difference between 305 and 350

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Thread starter evan Start date Sep 22, JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser. Status Not open for further replies. Sep 14, 13 0 Saskatoon, SK. I'm starting my parts search for my engine build so I need some advice.

When I go take a look at a used engine, how can I tell the difference between a Chevy and a Chevy ? Aug 24, 0 in front of the computer Sep 1, 32 0 Tacoma, Washington. Automotive Basics. Builds and Examples. August 14, Roadkill Customs Builds and Examples. Forum Rules. I was convinced!

Casting Numbers. Like already posted, if you can see the block by the distributer, newer since atleast '83 have the size cast into it. I think the has a fatter one. A lot of later 's have this too.

I let a good running 4 bolt main go because I thought that only applied to 's and it had the 3rd bolt hole on the end exhaust port. The recipient made sure I learned of my error.

Not necessarily. With those two numbers you can tell the displacement, day, week, year and shift it was made, the type of car it was installed in, the h. There are a number of web sites that have this info, but there is one outstanding one. I'll google it and get back with it.

It's a link Woody oughtta have if he doesn't already. AFAIK, there is no other sure way to tell besides measuring the bore or stroke. It looks like you can get displacement for sure just from the casting number. Still it's fun to get the other info from the assembly number as well.

Thanks man, I will check it out. I thought that the harmonic was thicker on a I could be wrong. Joined Nov 28, Messages 1. Gumby, I can't get the link to work. I used Google to search for "Chevy small block casting numbers" and found more than 44k results. From one of the sites: "The Engine Block Casting code is one of the best ways to identify a Chevy engine block.

This Casting number is usually found at the rear of the block on the left or drivers side on top of the bellhousing flange. You can also search on the exact casting code that you find there if unsure.

Click to expand I agree with Nick. The and have the same 3.