What should I do? Advice needed

[Phlebmaster]

Here is my situation........

 

I have just built up an L-18. I have a nice U67 head with a BIG cam in it. I just rebuilt my L-16 which has an ported A87 head with a stock L-20 cam.

 

I want to mount that U67 head, so what would be better? Mount the U67 on the L-18 and put it in my truck? Or mount it to the L-16 that is in my truck?

 

Would I really be gaining enough HP to make the swap worth it? Any help is appreciated.

 

Thank you!! :cool:

[banzai510(hainz)]

well My beater has a good motor w/cam but putting a weber DGV on there really killed it.

best to have TWIN CHOKE CARBS maybe some SUs if they are good for that head. But dont buy other peoples junk.

 

I put the Mikinis I had back on after I couldnt figure out why I had no idle. But idled fine after sidedrafts installed. I could not find leak after 3 differnt carbs. intake gasket carb gasket. 2 intakes

 

If you got a daily driver that reliable already dont worry about it.

I think the improvement will be under 6hp. But that is my opinion

[racerx]

Here is my situation........

 

I have just built up an L-18. I have a nice U67 head with a BIG cam in it. I just rebuilt my L-16 which has an ported A87 head with a stock L-20 cam.

 

I want to mount that U67 head, so what would be better? Mount the U67 on the L-18 and put it in my truck? Or mount it to the L-16 that is in my truck?

 

Would I really be gaining enough HP to make the swap worth it? Any help is appreciated.

 

Thank you!! :cool:

 

You need help in "mounting", just kidding, had to say it:lol:

[Phlebmaster]

Here is my situation........

 

I have a nice U67 head with a BIG cam in it.

 

I want to mount that U67 head

:cool:

 

Can you blame me?? :eek::lol::lol:

[hogboy52]

An L20 head on an L18 gives a CR of 7.65 and on an L16, a 6.8 CR. Also the U67 is open chamber and the L16 bore is 2mm smaller. You would need higher compression pistons and some head cutting to gain anything.

[Phlebmaster]

Thanks Hogboy!

 

So....should I just put that cam in my A87 that is on my L-16 now and call it good?

[bonvo]

sounds like the best call to me you already have the motor in the car with the compression you need throw the cam in it and see what happens if you need more fuel throw sidedrafts on it and go from there

[Bleach]

An L20 head on an L18 gives a CR of 7.65 and on an L16, a 6.8 CR. Also the U67 is open chamber and the L16 bore is 2mm smaller. You would need higher compression pistons and some head cutting to gain anything.

I was about to say that. I had an L18 with U67 head and a cam. Bad choice. My engine ran great but not all that powerful. No wonder!

[moparvwfreak]

Yeah just swap the cam. Easier that way. Then send me the L20 cam :D

[Phlebmaster]

Yeah just swap the cam. Easier that way. Then send me the L20 cam :D

 

Do you need a cam?? I have an extra...

[moparvwfreak]

not really. just would like a little more umph than the L16 has.