Which /6 do I have?

[dartsport73]

Hey folks I'm new to the forum. I just purchased a 1973 Dodge Dart Sport and I'm really excited about it. There needs to be some work done to it but it runs, and for $1000, I'd say it was a steal.

Thing is, I'm not sure which engine I'm working with. I see nothing printed on the block or sides. Can anyone help me out?

I apologize if this has already been posted.

 

[RustyDusty]

There are casting numbers on the block, look under the intake/exhaust manifold. It will look like this:

(It's right between the first and second freeze plugs, from left to right) This is an earlier block show, but it will still be close to the same location.

Once you find that number, use this chart to identify it:


CASTING # C.I.D.
2202843 170
2205630 170
2264478 170
2463230 170
--- 198
2202857 225
2205528 225
2463430 225
2806830 225

 

[dartsport73]

Thank you very much.

 

[805moparkid]

if the block hasn't been decked it will also say on the little pad right above the alternator mount on the passenger side deck surface. u can read it with the head on

 

[805moparkid]

There are casting numbers on the block, look under the intake/exhaust manifold. It will look like this:

(It's right between the first and second freeze plugs, from left to right) This is an earlier block show, but it will still be close to the same location.

Once you find that number, use this chart to identify it:


CASTING # C.I.D.
2202843 170
2205630 170
2264478 170
2463230 170
--- 198
2202857 225
2205528 225
2463430 225
2806830 225

BTW WTF is that out of??? and is that a core plug above the timing cover??

 

[RustyDusty]

It seems to be a mystery: I was following it from an earlier slantsix.org thread here: http://www.slantsix.org/forum/viewtopic.php?t=22499

Seems to be a stroked /6 170 turned into a racing engine.

 

[805moparkid]

It seems to be a mystery: I was following it from an earlier slantsix.org thread here: http://www.slantsix.org/forum/viewtopic.php?t=22499

Seems to be a stroked /6 170 turned into a racing engine.

freaking trip!! ive always heard there were a couple hundred stroker cranks made

 

[mopardrt]

if its a 1973 its a 225

 

[RustyDusty]

if its a 1973 its a 225

It's much earlier than a 73. The 73 225s had 4 or 5 freeze plugs on the side of the tower. The much earlier models only had 3.

 

[66aCUDA]

OK to the original Poster. Your 73 engine is either a 198 or 225. As suggested look under #1 plug facing the sky and clean off the 1/2 inch by 3 inch pad on the deck surface. Should be 1 or 2 letters then 198 or 225.
To Rusty Dusty this is a pre 1967 block.
Frank

 

[CARS]

I think what he was referring to was the OP's car. No other slants in '73 than a 225.

 

[805moparkid]

OK to the original Poster. Your 73 engine is either a 198 or 225. As suggested look under #1 plug facing the sky and clean off the 1/2 inch by 3 inch pad on the deck surface. Should be 1 or 2 letters then 198 or 225.
To Rusty Dusty this is a pre 1967 block.
Frank

2x

I think what he was referring to was the OP's car. No other slants in '73 than a 225.

2x

 

[dartsport73]

280683 Nice.