305 and 350 differences

[Sal Lubrano]

Hello, I am going to look at a monte carlo tommorow with a friend and we need to know how to tell the difference between a 305 and a 350. The seller says it has been swaped to a 350 but we do not want to be taken.
Any help please

 

[TURBOELKY]

there is no obvious differences in appearance. One way, the casting numbers on the back of the block. You can go on line and check them out. Usually a 350 is an 010 at the end of the castings. If its a newer 350, some will have 5.7 stamped on the side of it, under the exhaust manifold area on the block. If its factory painted still, which I doubt, blue is 305, orange is 350. Another way is to drive it! 305's have no guts, especially a stock monte ss engine. I do suggest you look for casting numbers online, they are easy to locate on the back of the block, drivers side. Good luck.

 

[RobsIron]

305's usually have a anchor chain attached to it.

 

[daniel]

305 have short fat balancers and 350 have taller skinnier balancers.unless they used the 305 balancer on the 350.good luck

 

[josh watson]

I

I suggest you ask the guy to pop the hood.....and sneak in with some air tools and a breaker bar

 

[corsair231]

It doesn't matter. It'll end up with a LC2 in it anyway.

 

[Turbo6Smackdown]

but... a genuine 350, when cleaned up pretty good, can get ya a little money to go torwards some more LC2 goodies.