ProComp/Speedmaster aluminum heads

-
I've swapped heads many times with the engine in the car and the cheap headers. Really it's not too bad.... but if you want to touch up, that's a different story
I really-really don't want to take the motor out AGAIN...
I already have plans to 100% disassemble the car completely winter after this next...
 
For discussion and learning purposes in your opinion where would you or would you not under what applications would you like or not like the extra 10 degrees of exhaust?


J par, the extra 10*’s (or more) of exhaust duration was done in the old days to use with stock heads that had exhaust flow in dismally low flow specs in order to help the engine breath in a fresh air and fuel charge better. The more efficient the exhaust port, the less extra exhaust duration is needed.


Now where this can apply to you would be a mystery to me since,
1: I’m not familiar with your build and it’s specs.
2: The actual and ultimate goal of the build is.
Let it suffice to say that there is a sought after intake to exhaust port flow balance being chased after to help the engine breath in and out for a more efficient engine in the target build. It was something in the 70 something percentage range. I do not remember this balance number right now. I’m sure PRH can tell you in greater detail the balance ratio and how and where it applies best for you personally and in general for the readers learning something new.

The better the head, the less of a split is needed. I’m not sure if adding in the mention of a reverse split seen on the HEMI applies, but it is interesting that I have seen this on HEMI builds before.

To much exhaust duration can actually hurt engine performance. Over scavenging can actually be bad. I know it sounds weird, but that’s just the way it is.

If you have a good set of heads and good breathing in and out of the engine, even a single pattern cam can perform really really well as anyone noticed over the years the split pattern cams have there split duration figures get smaller? (AKA Less exhaust duration.)


It’s truly an “it depends” situation........ with a virtually endless set of variables.
Way too many to get into here.
AIN’T THAT THE TRUTH!!


WOW! I haven’t seen that in a long time but that does have some revealing information. Good idea linking that. And now I know why I liked that solid purple cam so much that I got it again.

Hey! If it fits the goal, use it.
 
Last edited:
I really-really don't want to take the motor out AGAIN...
I already have plans to 100% disassemble the car completely winter after this next...
no need to pull it then. perhaps when you disassemble it when you have planned, maybe upgrade to Dougs (I think you mentioned that).
 
I really-really don't want to take the motor out AGAIN...
I already have plans to 100% disassemble the car completely winter after this next...
The work of a true Hot Rodder is never done.
I hear what your sayin though!
 
Last edited:
J par, the extra 10*’s (or more) of exhaust duration was done in the old days to use with stock heads that had exhaust flow in dismally low flow specs in order to help the engine breath in a fresh air and fuel charge better. The more efficient the exhaust port, the less extra exhaust duration is needed.


Now where this can apply to you would be a mystery to me since,
1: I’m not familiar with your build and it’s specs.
2: The actual and ultimate goal of the build is.
Let it suffice to say that there is a sought after intake to exhaust port flow balance being chased after to help the engine breath in and out for a more efficient engine in the target build. It was something in the 70 something percentage range. I do not remember this balance number right now. I’m sure PRH can tell you in greater detail the balance ratio and how and where it applies best for you personally and in general for the readers learning something new.

The better the head, the less of a split is needed. I’m not sure if adding in the mention of a reverse split seen on the HEMI applies, but it is interesting that I have seen this on HEMI builds before.

To much exhaust duration can actually hurt engine performance. Over scavenging can actually be bad. I know it sounds weird, but that’s just the way it is.

If you have a good set of heads and good breathing in and out of the engine, even a single pattern cam can perform really really well as anyone noticed over the years the split pattern cams have there split duration figures get smaller? (AKA Less exhaust duration.)



AIN’T THAT THE TRUTH!!



WOW! I haven’t seen that in a long time but that does have some revealing information. Good idea linking that. And now I know why I liked that solid purple cam so much that I got it again.

Hey! If it fits the goal, use it.



All hail, his highness, "Kingwillrun" or be scorned and lied about with his twisting of words and meanings brought to you by the mean girls debate club he is in.
I do love 318hasvalvesthatwillfly to Pieces, but he does twists some crap up sometimes...lol...
 
The work of a true Hot Rodder is never done.
I hear what your sayin though!

All hail, his highness, "Kingwillrun" or be scorned and lied about with his twisting of words and meanings brought to you by the mean girls debate club he is in
If my budget could keep up I'd be into this car 10 million dollars...
 
but he does twists some crap up sometimes...lol...
That and the outright lies......

I love that (10 sec) thread where he he Leeds people to believe he has 4 classic cars in the 10’s running around the southern states in mid hit as hell summer with no A/C and he is OK with it. Truly an iron man he is!
 
Last edited:
LOL...… I'm not seeing the posts because "for peace sakes" - and the request of a mod, I have put him on ignore since I've seen the "new look". When you dominate somebody's profile page, you are truly living 100% rent free in their head... :D :D :D

J par! See! He can’t help himself. Still wants to start in with ****.

The poor ***** edited his own pages.

FEAR!!!! He has.

You should keep me on ignore. It’s in your best interest.
 
Last edited:
LOL...… I'm not seeing the posts because "for peace sakes" - and the request of a mod, I have put him on ignore since I've seen the "new look". When you dominate somebody's profile page, you are truly living 100% rent free in their head... :D :D :D

Your living in my head? That’s the best you can come up with?
But yet your visiting my profile page?
So you do love me!
(Freakin homo!)

I just pasted something up there for all to know and realize as well as for me to make an easy copy and past for your royal highness.
 
Last edited:
J par! See! He can’t help himself. Still wants to start in with ****.

The poor ***** edited his own pages.

FEAR!!!! He has.

You should keep me on ignore. It’s in your best interest.

All hail, his highness, "Kingwillrun" or be scorned and lied about with his twisting of words and meanings brought to you by the mean girls debate club he is in
Man I've gotten in this poo poo with you before as well. Honestly it takes two to tango and I know he's not saying that he has 4, 10-second cars all over the place and loves to drive around with no a/c, now come on....
And honestly that thing you have on the bottom I can't even believe the mods are letting you get away with it. It's like sometimes you have this mod overriding superpower....
 
honestly this was a pretty good Thread about these heads and I was trying to keep it that way. If the mods would please erase anything that didn't have to do with that I'd sure appreciate it...
 
Our tango is nothing, brushed off.

This used douche bag has nerve to dispense pity on dwellers of NYC.

Who the hell is he?

He made the claim of 4 classic cars p second cars driving in the heat around the US.
 
Last edited:
I have given up and no longer want to tangle with a lied and bullshit artist. But, if I don’t state this after every post, he will just start up his **** again, so ....
 
Last edited:
I have given up and no longer want to tangle with a lied and bullshit artist. But, if I don’t state this after every post, he will just start up his **** again, so ....

All hail, his highness, "Kingwillrun" or be scorned and lied about with his twisting of words and meanings brought to you by the mean girls debate club he is in
Lol, sometimes my flying valve friend is hard to defend. LOL
Because I too have found myself many many times correcting his internet Truths... I think most of the bad vibes that come up in most of the conversations we have are all due to the fact that we're not standing in front of each other.
@toolmanmike
HELP!!!!...
honestly this was a pretty good Thread about these heads and I was trying to keep it that way. If the mods would please erase anything that didn't have to do with that I'd sure appreciate it...
 
I think the outright lies and word twisting is proof of an stinky wind blowing asshole enough.

Further proof was his mention and lame *** retort of how he is living in my head. Just further proof of his intended goal of song a bully to shove pity, shame on you with lies and insults and word twisting.

I’ll keep posting the below so I don’t have to (I hope!) here the *** fart again. As he did earlier on me.
 
Last edited:
Yes! Toolman! HELP!

I live in fear

He has already started engaging me. I do t want to be bullied around by a fella that hates New Yorkers anymore. His lies can stand.
 
Last edited:
Lol, sometimes my flying valve friend is hard to defend. LOL
HELP!!!!...
I need no defending, especially if you find it hard :poke: ……… but thanks, friend :)
 
Last edited:
Oh good lord where have we went? He hates New Yorkers now? LOL I think as I recall and I don't know for a fact but weren't you guys talking about bad traffic? Trust me New York doesn't have a unique traffic situation.
 
Oh good lord where have we went? He hates New Yorkers now? LOL I think as I recall and I don't know for a fact but weren't you guys talking about bad traffic? Trust me New York doesn't have a unique traffic situation.
…...
 
Last edited:
naw, I said how "I" would build a 10 second street car, because the OP of that thread asked "how would YOU build a 10 second street car". I simply answered the title of that thread. Grumblefish decided my "street" car would need to go through new York city with creature comforts because that is what he had to do to get to a track. LOL. my reply was simple. I never plan to take my classic car through NYC, and all 4 of my classic cars do not have A/C. all of this because of that. Just like the bagel shop video LOL :D :D :D
Did they close that thread? Is there a reason you're not continuing there? Even grumpy fish had some really cool stuff he was adding this morning until this whole bit of bit of shenanigans got dovetailed on to it....
If the mods could start right at this morning with grumpy fishes good comment and cut off his little harassing statement I think we would be all good...
 
Yes! Toolman! HELP!

I live in fear of his highness, "Kingwillrun!”

He has already started engaging me. I do t want to be bullied around by a fella that hates New Yorkers anymore. His lies can stand.

All hail, his highness, "Kingwillrun" or be scorned and lied about with his twisting of words and meanings brought to you by the mean girls debate club he is in
please I don't want to start up with you at all but quite honestly this morning did start out with you and some absolutely great information and conversation then having that thing at the bottom it just did light this all up where it doesn't need to be..
 
Did they close that thread? Is there a reason you're not continuing there? Even grumpy fish had some really cool stuff he was adding this morning until this whole bit of bit of shenanigans got dovetailed on to it....
If the mods could start right at this morning with grumpy fishes good comment and cut off his little harassing statement I think we would be all good...
…..
 
Last edited:
-
Back
Top