318 question

[mopar426]

i have a 318 la motor what is the bore size i think its 3.91 nott sure but its been bored 30 over and not sure on what size pist to get help would great

thanks.

 

[grumpuscreature]

Standard bore on a 318 is 3.91". Hope that helps.

 

[340 Dart]

So if he was buying pistons and had a .030 overbore, wouldn't the pistons need to me 3.94?

There, fixed it.

 

[70aarcuda]

stock bore 3.91
030 over 3.94

 

[green1]

A micrometer?

 

[rumblefish360]

So if he was buying pistons, wouldn't he need 3.94 with a .030 overbore?

No, just call the speed shop or manufacture and tell'em I have a 318 bored over .030. Then go from there.

 

[mopar426]

ok thanks for the help my 318 is taking a dump on me my water pump is leaking so is everything else so im just goin to freshin it up with a gasket set and mabye some new pistons

 

[340 Dart]

You have a PM.8)

 

[rumblefish360]

ok thanks for the help my 318 is taking a dump on me my water pump is leaking so is everything else so im just goin to freshin it up with a gasket set and mabye some new pistons

Nice, best of luck with it.

 

[mopar426]

thanks man