Are Both Valve Reliefs the Same on the Domed TRW L2322F Small Block Piston?

[MOPAROFFICIAL]

Did you get a vacation a month and a half ago when you were going back and forth with newbomb turk ?

Yes, and it was okay even though I felt it wasn't justified so much..as I wasn't the instigator.. but i believe it was considered as all who play rough get time out.
Newbomb
Ratbastid
Yellow rose

All the same person.lol

 

[MOPARMAGA]

Yes, and it was okay even though I felt it wasn't justified so much..as I wasn't the instigator.. but i believe it was considered as all who play rough get time out.

Right, I read the thread. Nobody should have gotten a vacation for that.

 

[MOPARMAGA]

You reminded me of him in that comment.
906 heads...If that Chevy short turn had a taller roof... then it wouldnt suck so bad, but to whom? Those run of the mill cylinder head guys?
Jim gets 330's out of them, his claim to fame , not mine.. but point made.

Passenger cars is what they were intended for, so really.. any potential is purely accidental by the factory if you think about it.

2.02 j head and 906 2.08 flow damn near the same. Seems they had a target hp and velocity in mind, if they really even went that far.

What I said on that comment was 906 Chrysler heads are basically larger scale Chevy small block heads. In the video, dude stated that small block Mopar guys would kill for that SSR ... which I laugh at since big block Mopar heads are what I said a bigger version of sbc.
Nothing special at all.

 

[MOPARMAGA]

With all due respect to that moderator, I have never heard of him before I've never seen him on before I have no idea his experience. I feel like people who haven't been on very long who don't know the regulars and long-time contributors shouldn't be the ones pulling the trigger. With that said, they are a moderator for a reason and well I spect they used their best judgment or an approach they grew up with that felt works. I still think it left much to be considered

He's been around for years, he just had to start over as a mod, he's one of us good guys in n&p lol.

 

[273]

He's fine, just sick of soft snowflakes telling on him. The dude is smarter with real life experience than 98% of people on here.
I'm glad he's my friend !

Well that's good to hear he's ok, yes he's definitely a smart man, now got one less to side with in our inevitable debates lol.

 

[RustyRatRod]

What I said on that comment was 906 Chrysler heads are basically larger scale Chevy small block heads. In the video, dude stated that small block Mopar guys would kill for that SSR ... which I laugh at since big block Mopar heads are what I said a bigger version of sbc.
Nothing special at all.

I'm unsure I agree with that assessment. All Chevy small block heads have quench chambers. Only a scarce few big Mopar heads do.

 

[MOPARMAGA]

I'm unsure I agree with that assessment. All Chevy small block heads have quench chambers. Only a scarce few big Mopar heads do.

Just talking about the basic cylinder head layout. Wedge head

 

[MOPAROFFICIAL]

The problem is most people want to argue about stuff instead of listening to another view.

I agree with this, but its a two way street and it seemed one way when it came to our lil buddy

 

[MOPAROFFICIAL]

I'm unsure I agree with that assessment. All Chevy small block heads have quench chambers. Only a scarce few big Mopar heads do.

For starters bb mopar is a 15 degree valve angle while Chevy sb are a toilet 23 degree and shorter. The bowls in a sb Chevy are terrible. Remove that far side lip and the flow goes bye bye too.

Sorry dibbons for the derailment.

 

[MOPARMAGA]

I agree with this, but its a two way street and it seemed one way when it came to our lil buddy

Sometimes, somebody is an expert in a subject.

 

[MOPAROFFICIAL]

Sometimes, somebody is an expert in a subject.

Sometimes, somebody is an expert in a subject.

Never met one... but I believe an expert would be rolling in doe and have their name in everyone's mouth.
I believe those who know very little see those who know quite a bit as greater than they really are. Thats the most considerate way I can put it.


To each their own though.

 

[33IMP]

Boy, did this thread fly off the rails!

Picture in post #1, it looks like the divider between the valve reliefs is centered up in line with the center mark. Therefore, the reliefs are the same, left and right.

 

[MOPAROFFICIAL]

Nice huh.

Do as you say, ignore me. Id appreciate it.

 

[340six]

The question the OP posted about the TRW Pistons (now markered as Speed-Pro?)
Good, bad, ugly? They are good, they are strong, they are heavy and get a bad rap. Not very pretty or light like a set of new Diamond Pistons
I used stock replacement high compression forged 340 68-71 ones from 1980 to 2000ish
Even used them in my X Block build in the mid-90s. But had a little skimmed off the tops, as had closed chamber heads. They are in here

 

[Woody500]

The video on 308 heads he had worked was especially informative. We need someone in the aftermarket to produce those heads with larger as cast ports from aluminum and retain the factory exterior shape. And maybe even an offset rocker version as well.

Love a set of those for my turbo(someday)318.

 

[Woody500]

Some people are so critical..that they let they keep themselves from enjoying simplistic happiness. It always has to be bigger, more, the best... becomes cynical... and its tiring to be around after a while.

This whole thread is so far off I don't know what any of you are squawking about!

 

[MOPAROFFICIAL]

This whole thread is so far off I don't know what any of you are squawking about!

A member , one that agreed with your post, was mentioning another member also mentioned in the 1st post. a few commented about that member ..then there was a response to those comments in regards to that members attitude issues. Nothing to see here really.

All this thread was about, was whether or not the valve reliefs in the Piston pictured in the very first post were uniform, as they are uniform. The original poster could simply measure them with a mic and figure that out. There is really nothing to learn in this thread. So it didn't take much to go off the rails to begin with

 

[MOPAROFFICIAL]

I run the same pistons in my 340, the domes been trimmed a few times since I raced it.
There not being a left and right piston, the reliefs pretty much needs to be the same .
Cheers

@Woody500

Exactly. The valve reliefs are identical they can be put in anyway except upside down or with the spark plug relief on the wrong side of the chamber. Fin.

 

[Killer6]

I'm unsure I agree with that assessment. All Chevy small block heads have quench chambers. Only a scarce few big Mopar heads do.

Right, all but the '67 440 HP heads that are closed chamber, have a low SSR. MOPARMAGA is correct in that the 906 has every bit as high a SSR as any of the stk. SBC iron, actually for the port, a bit too high. The comment was about said SSR, but even tho' the flow numbers suffer some, the early closed chambers will run on a 383 with great results.
The common; long ports that not only don't open on center, they don't even seat on center, with plugs as far to one side of the chamber as almost possible excepting the slightly better double-hump era, which actually double-squish with the right pistons, so.....chamber/bore shrouding & long flame travel in stock form, with valve angle nod going slightly to the BBM. Head bolt placement nearly the same, but even tho' the BBM has a lot more space/lateral angle, you're at the mercy of the castings which can be awful right where they should shine.

 

[RustyRatRod]

Right, all but the '67 440 HP heads that are closed chamber, have a low SSR. MOPARMAGA is correct in that the 906 has every bit as high a SSR as any of the stk. SBC iron, actually for the port, a bit too high. The comment was about said SSR, but even tho' the flow numbers suffer some, the early closed chambers will run on a 383 with great results.
The common; long ports that not only don't open on center, they don't even seat on center, with plugs as far to one side of the chamber as almost possible excepting the slightly better double-hump era, which actually double-squish with the right pistons, so.....chamber/bore shrouding & long flame travel in stock form, with valve angle nod going slightly to the BBM. Head bolt placement nearly the same, but even tho' the BBM has a lot more space/lateral angle, you're at the mercy of the castings which can be awful right where they should shine.

Do they? Even the non HP small exhaust valve 915? I'm not asking to be facetious, I'm asking because I simply don't know. I would ASSUME they used the same castings for both heads, but you know that gets you in trouble with Chrysler. lol

 

[Killer6]

Do they? Even the non HP small exhaust valve 915? I'm not asking to be facetious, I'm asking because I simply don't know. I would ASSUME they used the same castings for both heads, but you know that gets you in trouble with Chrysler. lol

Yes, I ported & put 1.75" exhausts in 2 sets, I think the stock squeeze is 9.2:1. I used the then very available DC/MP shim head gaskets, they burned good & fast, I ran the base timing up & up to see the idle/response.....to the point I had like 52-54° total. It wouldn't wind hardly past 5,600 but refused to ping,....lol.

 

[RustyRatRod]

Yes, I ported & put 1.75" exhausts in 2 sets, I think the stock squeeze is 9.2:1. I used the then very available DC/MP shim head gaskets, they burned good & fast, I ran the base timing up & up to see the idle/response.....to the point I had like 52-54° total. It wouldn't wind hardly past 5,600 but refused to ping,....lol.

I like those heads. I like the 516s as well. They can be made to really flow. But of course, it becomes a money thing VS aluminum castings.

 

[Killer6]

I like those heads. I like the 516s as well. They can be made to really flow. But of course, it becomes a money thing VS aluminum castings.

Yeah, it's a whole different world now vs '88-'89, I think the 1st runs of W5 heads were coming out about then. There were no economical options in comparison to today, & most of todays don't sprinkle.......
The Stage VI's could be capable, but needed a good bit of work to get there, & Jim L. got more out of a factory iron head( make no mistake..LOTS of work). Also not cheap.

 

[RustyRatRod]

Yeah, it's a whole different world now vs '88-'89, I think the 1st runs of W5 heads were coming out about then. There were no economical options in comparison to today, & most of todays don't sprinkle.......
The Stage VI's could be capable, but needed a good bit of work to get there, & Jim M. got more out of a factory iron head( make no mistake..LOTS of work). Also not cheap.

You mean Jim Laroy?

 

[Killer6]

You mean Jim Laroy?

Sorry, yes, Jim L. .......lol.