Piston 318

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plymouth1937

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Hi anybody knowe if all stock pistons for the 318 is the same comp height regardles of whitch year it was made
 
I get the following:

1967: 1.75
68-69: 1.77
70-84: 1.74
85-86: 1.76

Source: "How to Hot Rod Small Block Mopar Engines" by Larry Shepard
 
KB-399’s . Domed, depending on what heads you're running and what the measured chambers are actually at and what your target compression ratio is
 
Great plan;
I think you can run your Dcr up to about 9/1 with alloy heads. I did/do,(367 cubes) and run 87E10 in that. Depending on your cam, that could be as high as 11.3 Scr, or even more.
You can't get to 11.3 with flat-top pistons down in the holes and 63cc heads.
I think @racerdan80 is on the right track.

But if you get close at least, (to 9.0 Dcr); she'd be a heck of a runner down low.
I've had my 367 to a Dcr of ~9.25 at ~900 ft elevation, which ran gangbusters stoopid strong. and got mega mpgs as well.
 
Last edited:
Dan the man said:
Here in the states they aren't cheap either. Doug's headers for a duster with a small block and ceramic coated are around $700.
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Yes i hear you many wants but few are selected
But new parts is mutch cheaper on your side of the sea if you ad 40-50% your close to over prices but i can see that used parts are often cheaper over here even cars are cheaper
 
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