440 heads
09-18-2016, 02:54 PM
#2
Super Moderator
If I was starting from scratch I'd go with Trick Flows for a street strip motor.
09-18-2016, 03:02 PM
#3
Super Moderator
I've heard they're coming out with a max wedge size head also.
09-19-2016, 06:02 AM
#5
Mopar Lover
1 -
Last year I spoke to Edelbrock and a number dealers (Mancini, Summit, JEGS, etc). They all came back with the same answer. If a proper porting job was done on the stock heads, going to aluminum won't buy you anything, except maybe looks. Remember, these are the guys SELLING the heads and they talked me out of it.
I don't know about the Trick Flow, or if you want to buy aluminum heads and THEN have them reported, which might help in a race situation.
If the stock heads are off or coming off the block, having a good machinist do a number on them might give you the most bang for the buck.
So it really comes down to what you're looking to do and your budget.
Archer
Last year I spoke to Edelbrock and a number dealers (Mancini, Summit, JEGS, etc). They all came back with the same answer. If a proper porting job was done on the stock heads, going to aluminum won't buy you anything, except maybe looks. Remember, these are the guys SELLING the heads and they talked me out of it.
I don't know about the Trick Flow, or if you want to buy aluminum heads and THEN have them reported, which might help in a race situation.
If the stock heads are off or coming off the block, having a good machinist do a number on them might give you the most bang for the buck.
So it really comes down to what you're looking to do and your budget.
Archer
09-19-2016, 02:28 PM
#6
Super Moderator
Here is bang for the buck!!! You cant do a set of stock heads for this!
https://www.summitracing.com/parts/p...iew/make/dodge
Sold as a pair!
https://www.summitracing.com/parts/p...iew/make/dodge
Sold as a pair!
09-20-2016, 01:22 AM
#8
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If aluminum,doesn't that open up on pump gas a SCR by one point?.
Question is are the 440's limited in how high they rev?. I recently looked at a 440 build that was a hydro roller.Seems like the HP ratings fell apart when they lower the SCR for emissions to 8.5.
09-20-2016, 05:21 AM
#10
Super Moderator
If aluminum,doesn't that open up on pump gas a SCR by one point?. YES, iron heads 9.5 aluminum approximately 10.5
Question is are the 440's limited in how high they rev?.Depends on the build , I've run both my 452" and 500" to 7000 depending on the cam. I recently looked at a 440 build that was a hydro roller.Are limited on rpm because of lifter weight, valve floatSeems like the HP ratings fell apart when they lower the SCR for emissions to 8.5.
Question is are the 440's limited in how high they rev?.Depends on the build , I've run both my 452" and 500" to 7000 depending on the cam. I recently looked at a 440 build that was a hydro roller.Are limited on rpm because of lifter weight, valve floatSeems like the HP ratings fell apart when they lower the SCR for emissions to 8.5.
09-20-2016, 05:24 AM
#11
Super Moderator
09-20-2016, 12:42 PM
#12
Super Moderator
1 -
Last year I spoke to Edelbrock and a number dealers (Mancini, Summit, JEGS, etc). They all came back with the same answer. If a proper porting job was done on the stock heads, going to aluminum won't buy you anything, except maybe looks. Remember, these are the guys SELLING the heads and they talked me out of it.
I don't know about the Trick Flow, or if you want to buy aluminum heads and THEN have them reported, which might help in a race situation.
If the stock heads are off or coming off the block, having a good machinist do a number on them might give you the most bang for the buck.
So it really comes down to what you're looking to do and your budget.
Archer
Last year I spoke to Edelbrock and a number dealers (Mancini, Summit, JEGS, etc). They all came back with the same answer. If a proper porting job was done on the stock heads, going to aluminum won't buy you anything, except maybe looks. Remember, these are the guys SELLING the heads and they talked me out of it.
I don't know about the Trick Flow, or if you want to buy aluminum heads and THEN have them reported, which might help in a race situation.
If the stock heads are off or coming off the block, having a good machinist do a number on them might give you the most bang for the buck.
So it really comes down to what you're looking to do and your budget.
Archer
Bob has seen the dyno sheet, I'd still go with the Trick Flows for a street/strip!
You will be $$$ ahead and 50 hp. ahead. The Trick Flows are fully CNC ported and use standard rocker setups.
https://www.summitracing.com/parts/t.../make/chrysler
Last edited by Iowan; 09-21-2016 at 07:22 AM.
09-21-2016, 10:04 PM
#13
2K ready to bolt on By the time you have someone rework them, new valves / springs /retainers and machine work you are talking probably the same money.. Aluminum heads can run a point more compression
PLUS the weight savings
PLUS the weight savings
09-22-2016, 06:22 AM
#14
Mopar Lover
I -
But you're comparing heads that were basically ported at the factory to the Edlebrock heads I mentioned, that aren't and need more work to bring them up to "speed". The Trick Flow heads seem interesting, and might be worth looking into, but that still depends on the RPM the guy is living at. 50 HP at WOT is significant, but if the guy is living at 3000 90% (+) of the time, maybe not so much.
30 years ago, my car was a real street/strip car, these days pretty much all street. (Just aren't any "strips" withing driving distance.)
Archer
But you're comparing heads that were basically ported at the factory to the Edlebrock heads I mentioned, that aren't and need more work to bring them up to "speed". The Trick Flow heads seem interesting, and might be worth looking into, but that still depends on the RPM the guy is living at. 50 HP at WOT is significant, but if the guy is living at 3000 90% (+) of the time, maybe not so much.
30 years ago, my car was a real street/strip car, these days pretty much all street. (Just aren't any "strips" withing driving distance.)
Archer
09-22-2016, 12:37 PM
#15
Super Moderator
I think my heads work good for what they are but I've seen seen dyno sheets with the TFs and a cam I have used in the past. TF make better numbers everywhere especially in torque. I'm old school and don't go for the latest and greatest most of the time, but if I tripped over a pot of gold I would have a set. 
Last edited by Iowan; 09-23-2016 at 02:01 AM.
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