(wanted) Edelbrock 60177 or nicely worked RHS heads

[swinger340]

Looking for a pair of edelbrock heads. New or a nice used set will work. Would also consider a pair of nicely worked RHS heads that flow good. PM me w/ what you got. Thanks for any help, Kevin

 

[1970Duster]

Unless you have pop up pistons (dome) you'd be better off with the 60177 63 CC head (closed chamber) because you'll have better quench. I have the closed chameber 60177 head on my 340 but I also have flat top pistons.

 

[swinger340]

Unless you have pop up pistons (dome) you'd be better off with the 60177 63 CC head (closed chamber) because you'll have better quench. I have the closed chameber 60177 head on my 340 but I also have flat top pistons.

My 340 short block is already assembled w TRW 2316s that stick .015 above the deck. Kinda limits me to open chambered heads. I would like to try some RHS heads but they wont work on this engine, Mabe on the stroker.

 

[1970Duster]

My 340 short block is already assembled w TRW 2316s that stick .015 above the deck. Kinda limits me to open chambered heads. I would like to try some RHS heads but they wont work on this engine, Mabe on the stroker.

Why won't they work? They should if you're using a roller cam (my Eddys needed to be "opened" up in the Pushrod area in order to run my roller cam

 

[swinger340]

Why won't they work? They should if you're using a roller cam (my Eddys needed to be "opened" up in the Pushrod area in order to run my roller cam

I think tolerances would be a little to close for comfort w/ closed chambered heads and the pistons sticking above the deck .015 That would only give me .024 clearance between pistons and head w a .039 thick head gasket.

 

[1970Duster]

They make thicker gaskets

 

[crackedback]

You asked about this before and you're getting the same answer.

Run a thicker head gasket to get your quench distance. Run a .055-.060 head gasket and be done with it. No reason to run the open chamber head even with the piston sticking out .015.

The RHS or closed chamber Ede would work fine with a thicker gasket.

 

[swinger340]

You asked about this before and you're getting the same answer.

Run a thicker head gasket to get your quench distance. Run a .055-.060 head gasket and be done with it. No reason to run the open chamber head even with the piston sticking out .015.

The RHS or closed chamber Ede would work fine with a thicker gasket.

Im not asking if it will work. Im am looking for open chamber heads. I ended up not buying the other heads i asked about, that were planed. If i already had the heads I would run a thicker gasket, but seeing as i dont id just as well buy the open chamber heads and not have to run thick gaskets. Unless someone has a deal on some 60177s or RHSs and then I can make it work.

 

[crackedback]

I would like to try some RHS heads but they wont work on this engine, Mabe on the stroker.

You mentioned it in here, simple fix. There are some benefits to going closed chamber as well.

Good luck with your search.

 

[ValiantRacing]

I have a 340 that the piston is .025 out of the deck and we run the closed chamber heads works great.

better quench

 

[swinger340]

You mentioned it in here, simple fix. There are some benefits to going closed chamber as well.

Good luck with your search.

Many people say the closed chambered heads have a better quench area. What benefits does the quench area provide? Ive always ran open chambered heads so that is a new one for this old school 340 guy. Mabe im thinking wrong, if I could benefit from the quench mabe i need to change the heads im hunting for. Thanks, Kevin

 

[swinger340]

I have a 340 that the piston is .025 out of the deck and we run the closed chamber heads works great.

better quench

Good to know. Mabe i need to change my train of thought thinking that i need open chambered heads. Witch heads and gaskets are you running?

 

[1970Duster]

Many people say the closed chambered heads have a better quench area. What benefits does the quench area provide? Ive always ran open chambered heads so that is a new one for this old school 340 guy. Mabe im thinking wrong, if I could benefit from the quench mabe i need to change the heads im hunting for. Thanks, Kevin

You get better quench (a much smaller area for the gases to goes/expand) which in turn will give you more HP.

 

[swinger340]

You get better quench (a much smaller area for the gases to goes/expand) which in turn will give you more HP.

Well then... More HP is a good thing. I do know that much. I was thinking open chamber so i didnt have to run thick gaskets but mabe i need to rethink my head of choice. Thanks

 

[crackedback]

Quench = prevention from detonation.

Open chamber heads are more susceptible to detonation. You can usually get more compression from a tight quench engine before it detonates as compared to a similar CR open chamber engine.

I've fought with a few 340's with X/J heads to get them to stop detonating. If I can help it, I prefer to run closed chamber heads. The last set of Ede heads I got were open chamber... not any more, after a few runs on a surfacer. Last engine I built was .005 out of the hole with a .039 gasket, pretty tight by most standards.

All good, make an informed decision.

 

[ValiantRacing]

Good to know. Mabe i need to change my train of thought thinking that i need open chambered heads. Witch heads and gaskets are you running?

The 318 Eddy heads and Cometic head gaskets