302/714 on 73 318 pushrod length

[Notanova73]

Ok I have a 73 318 I have a set of 714 closed chambers off of a 91 318 which are same as 302 heads what push rod length should I get?my engine is together and my daily driver so it’s not apart to check this. I live in an apartment and I have a freind that is going to let me pull my engine reseal it put these heads on install headers etc but I want to make sure I get the right parts so it only takes 2 days to do it. The current engine has been rebuilt but they installed alote of seals wrong and it leaks alote so I don’t need info on the condition of my 318 it’s really good shape

 

[Kern Dog]

The heads do not matter.
There are only a few lengths to concern yourself with.
Early LA with solid lifters.
ALL hydraulic flat tappet lifter engines.
LA with the roller cam.
Magnum engines.
Yours is the second one.

 

[RustyRatRod]

Yeah here I was in the other thread tryin to figure out why you brought up roller LA and Magnums. I was scratchin my head.

 

[Notanova73]

Yeah my engine la 1973 318 the heads are 714 which are same heads as 302 heads both closed chamber and from a hydraulic roller 318

 

[RustyRatRod]

Yeah my engine la 1973 318 the heads are 714 which are same heads as 302 heads both closed chamber and from a hydraulic roller 318

Then certainly run the 714 heads.

 

[Notanova73]

Then certainly run the 714 heads.

I plan to if I can now figure which valve seal to use

 

[Notanova73]

 

[Notanova73]

I dunno if you can c pic but left og right the ones in fel pro kit

 

[Notanova73]

The newer on right look small but fits about same but stiffer guessing because it’s new the heads had over 100k miles from 91 dakota I pulled them from

 

[Notanova73]

 

[RustyRatRod]

I dunno if you can c pic but left og right the ones in fel pro kit

Use ones like the one on the left.

 

[Notanova73]

The plastic/ rubber type seem to fit should I use them or replace with the metal ones with rubber and some spring thing on top dunno

 

[Notanova73]

Use ones like the one on the left.

So the metal type that come on the head?

 

[Notanova73]

So the metal type that come on the head?

Damn let me see if I can find em they only made the heads for a few years same as 302

 

[RustyRatRod]

So the metal type that come on the head?

Those are not factory. You need to pop one off and measure the OD of the guide and get the right seals.

 

[Notanova73]

Those are not factory. You need to pop one off and measure the OD of the guide and get the right seals.

The one that’s on it on right is the replacement

 

[Notanova73]

I did find a set that should fit 91 dakota they are same type as original they aren’t easy to find they replace them now with the rubber/ mastic type

 

[RustyRatRod]

The one that’s on it on right is the replacement

Then they're both replacements. Chrysler never used the type seal on the left. But that's the type you should use.

 

[Notanova73]

Then they're both replacements. Chrysler never used the type seal on the left. But that's the type you should use.

The metal sleeve type?

 

[RustyRatRod]

The metal sleeve type?

Yes. The one on the L E F T.

 

[Notanova73]

Yes. The one on the L E F T.

I hope the ones I found work

 

[RustyRatRod]

They aren't but around 20 bucks a set.

 

[Notanova73]

They aren't but around 20 bucks a set.

Bought them for $14

 

[Notanova73]

Was a weird one this setup was only 90-92 I think lol

 

[Notanova73]

The very last years befor magnum