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Re: Please Help Deciding On Big Block Heads [Re: HOTMOPR] #2741665
02/10/20 05:44 PM
02/10/20 05:44 PM
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Charleston
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sixpackgut Offline
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Charleston
I would change headers to 2" 3.5s. With exhaust cutouts if your running exhaust

I would probably run a bit tighter converter with 4.10s

Ultimately losing some weight will help


Gen 3 power 6.22@110, 9.85@135
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performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: Please Help Deciding On Big Block Heads [Re: dragram440] #2741675
02/10/20 06:07 PM
02/10/20 06:07 PM
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Val-haul-ass... eventually
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BradH Offline
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Originally Posted by dragram440
... So you guys think these old stage VI heads will make around the same power as any of these other heads on my short block?

No; I was thinking you have the MW version.

I'm sure with at least different heads, intake & headers, the car WILL go faster. However, I think you're looking at low 10s, not high 9s.

I'd love to be proved wrong, though.

Re: Please Help Deciding On Big Block Heads [Re: dragram440] #2741677
02/10/20 06:09 PM
02/10/20 06:09 PM
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"Little"John
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Originally Posted by dragram440
Originally Posted by fast68plymouth
If the efficiency of the car remained the same with the new combo as it did with the 10.60 combo....... you’re looking for another 130hp.

I’m not sure that’s feasible with a $4k budget.

A bottle would do it.


I said I have $4000 save up to to get started. The 440-1 kit is $4200 to start with. I didnt think I said I had a $4000 budget.





If you are going with stock 440-1 heads you aren’t going to get anywhere near 800 horsepower. Cnc’d heads maybe.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: Please Help Deciding On Big Block Heads [Re: pittsburghracer] #2741681
02/10/20 06:16 PM
02/10/20 06:16 PM
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Posts: 14,478
So. Burlington, Vt.
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fast68plymouth Offline
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You can get an idea on what’s involved for 800hp in that ci range:

https://www.hotrod.com/articles/mopp-1006-project-505-engine-block-jesel-comp-and-indy-hardware/

Every Mopar I’ve tested here that was in that hp range(750+) were all more cubes and were built using aftermarket blocks.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Please Help Deciding On Big Block Heads [Re: pittsburghracer] #2741682
02/10/20 06:19 PM
02/10/20 06:19 PM
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Posts: 1,058
bigfork mn
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dragram440 Offline OP
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I do appreciate all the suggestions. Definately got me thinking! Now I really don't know what direction to go! My car is only good to run 10.00, I run it in a natural aspirated street class. Stock suspension, Drag Radial, exhaust and interior. Heads up.


67' charger 499 RB 10.57 at 127
Re: Please Help Deciding On Big Block Heads [Re: dragram440] #2741686
02/10/20 06:30 PM
02/10/20 06:30 PM
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Posts: 15,439
Val-haul-ass... eventually
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BradH Offline
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Trick Flow 270s, Super Victor intake, 2" headers... if you can reuse your current rockers, that's probably getting close to $4K. Maybe start saving up for a cam upgrade in the future, if you still feel the need.

You'll have the potential to run far closer to that 10.0 limit than now, and who knows how quick you can run after it's dialed in. Sounds like the type of class I'd want to run in, too.

Re: Please Help Deciding On Big Block Heads [Re: dragram440] #2741690
02/10/20 06:36 PM
02/10/20 06:36 PM
Joined: Feb 2005
Posts: 20,116
PA.
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"Little"John
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PA.
Originally Posted by dragram440
I do appreciate all the suggestions. Definately got me thinking! Now I really don't know what direction to go! My car is only good to run 10.00, I run it in a natural aspirated street class. Stock suspension, Drag Radial, exhaust and interior. Heads up.



Coming from someone that has been there, done that really stop and think where you want to go, how much you want to spend, and how much you want to work on it. Right now with a bigger cam, more convertor, and a deeper gear you could go faster. But at what cost. I have three dusters. One that should run very low 8’s on nitrous. (Keith Black 572). I have a 505 mega block that I will hopefully finish one of these days that will run in the 8.80’s area. But I’m out having a blast in my almost zero maintenance 422 small block that has gone 9.40’s. It’s fun racing three day weekends and not even having to take the hood off. Take your time and above all, have FUN.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: Please Help Deciding On Big Block Heads [Re: dragram440] #2741697
02/10/20 06:50 PM
02/10/20 06:50 PM
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Posts: 2,128
Salt Lake City
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camastomcat Offline
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Salt Lake City
Originally Posted by dragram440
I do appreciate all the suggestions. Definately got me thinking! Now I really don't know what direction to go! My car is only good to run 10.00, I run it in a natural aspirated street class. Stock suspension, Drag Radial, exhaust and interior. Heads up.


In my opinion, you need to know which stage 6 heads you have. They made standard ports and max wedge ports. Have your heads flowed and go from there. If you have the max wedge ports, there is no reason to go to -1 heads. Any of the trick flow or EZ stuff won't get you where you want be. Once the heads are flowed you can decide which cam to buy to maximize your stage 6 program. Don't spend anymore than you have to. Also, you have to be concerned about the stock block being able to handle the increase power level without breaking. I have gone from stage 6 heads to -1's. It wasn't that much of a power gain to warrant the extra cost unless you update to the 2.25 intake valve. At that point you may overpower your block without an aluminum main upgrade. Don't forget the converter needs to match!

Re: Please Help Deciding On Big Block Heads [Re: pittsburghracer] #2741701
02/10/20 07:05 PM
02/10/20 07:05 PM
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Sydney,Australia
tex013 Offline
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I kind of think your 6.60 (1/8) should be faster in the 1/4 . I am at 10.40s and better for that sixty
Definitely I would go a 4.1 gear .
Heads ? your choice , at a 10.00 limit the 270 might be best bang for buck . If going to upgrade for faster may need bigger heads . If buying rockers you may as well buy 1.6s if reusing the cam you have to grab extra lift
2"headers will help . I run Dougs with exhaust to diff . I have to run mufflers and it is a street car .
Rear seat out in my 68 Satellite was about 40lbs or so

Tex


New best ET 10.259@129.65 .
New best MPH 130.32
Finally fitted a solid cam,
stepped it up a bit more
3690lbs through the mufflers
New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm
Power by Tex's Automotive
Re: Please Help Deciding On Big Block Heads [Re: tex013] #2741717
02/10/20 07:40 PM
02/10/20 07:40 PM
Joined: Mar 2009
Posts: 1,058
bigfork mn
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dragram440 Offline OP
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So after reading this and doing more research best bang for the buck to net me the most horsepower with basically heads out of the box setup correctly for my setup i am kind of leaning towards the trick flow. I dont know for sure. They seem to have some pretty good flow number out of the box. Seem to be a lot better then the stage 6 i had. Might need to do a little work to them to get the compression up. Maybe pick up a couple tenths with 1.6 rockers and big headers. Prob go with the super victor intake. Does this sound stupid? I sold my old heads so they are not a option.


67' charger 499 RB 10.57 at 127
Re: Please Help Deciding On Big Block Heads [Re: fast68plymouth] #2741731
02/10/20 08:54 PM
02/10/20 08:54 PM
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Oregon
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AndyF Offline
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Oregon
Originally Posted by fast68plymouth
You can get an idea on what’s involved for 800hp in that ci range:

https://www.hotrod.com/articles/mopp-1006-project-505-engine-block-jesel-comp-and-indy-hardware/

Every Mopar I’ve tested here that was in that hp range(750+) were all more cubes and were built using aftermarket blocks.


Yeah, 800 hp with a stock block is just a time bomb. I think we might have made 50 dyno pulls or so at the 800 hp level with that engine before it cracked the main webs. I would not recommend starting with a stock block if the goal is 800 hp. 700 hp is fairly easy to achieve with TF270 heads and a healthy roller cam and a stock block will live for a season or two at 700 hp. That is where I'd stop if I was on a budget and couldn't afford an aftermarket block.

Re: Please Help Deciding On Big Block Heads [Re: AndyF] #2741745
02/10/20 09:41 PM
02/10/20 09:41 PM
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Casper, WY
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Wax Offline
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https://www.racingjunk.com/Big-block-complete/183988004/Indy-Max-ported-345-1-heads.html

Here is a nice set for the dollar amount you are wanting to spend.

Re: Please Help Deciding On Big Block Heads [Re: dragram440] #2742206
02/12/20 11:12 AM
02/12/20 11:12 AM

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No way do you need 800hp to run 9.80-10.00......you have 600 plus or minus now, you need about 700'ish......but with 3.73 gear at 3700lbs more torque is what you need imo.....

Re: Please Help Deciding On Big Block Heads [Re: dragram440] #2742265
02/12/20 01:40 PM
02/12/20 01:40 PM
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Posts: 1,944
Apollo, PA.
B1MAXX Offline
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Apollo, PA.
Originally Posted by dragram440
I am trying to decide which heads to order. I don't have unlimited funding so I am trying to stay on as much of a budget is possible. I have been reading articles and forums for two weeks and still undecided. So far from what I have read I kind of have it narrowed down to these few. Indy 440-1, Trick flow 270, Indy Max Wedge EZ super prepped from Hughes. I am wanting to try to reach around that 800 H.P. range and around 7000 RPM range. I am going to be putting on new heads intake rockers and push rods and headers. I will write up what my old combo was and see what you guys think would be my best choice. 10.00 Basically is my E.T. Goal but would be happy with a little fast.

440 RB Stock Block, Billet steel main cap, Line Bored, ARP Main studs, Squared and zero decked
Eagle 4.150 Forged crank, H beam rods, SRP Flat top Piston at 0 Deck. 4.380 Bore makes it 4.99 C.I.
Doug Herbert solid roller cam 272/275 @ .50 .620 lift with 1.5 rockers
MP Stage 6 heads, Full hand port with 75 cc chambers and a matching M1 intake with built in valley Machined for 4500 Carb also hand ported and matched to heads, Heads flow roughly .330 @ .700 Thats all the guy said when I bought them years ago
Holley 1050 Dominator
Msd Pro Billet dist with 7 AL3 box
Hooker super comp 1 7/8 headers with 3" collectors
727 foot brake trans with 8" Coan converter flashes around 5000 RPM
Dana 60 with 3.73 Gears,
Leaf springs. Mopar HXD leafs with cal Tracs
Afco double adjustable shocks
325-50-15 Mickey T Drag radial.
3750 weight with me in it.
1.48 60', 6.60 in the 1/8 and 10.60's quarter

My goal is to run 10.00 or even 9.80 would be alright! Just trying to figure out which one is going to get me there. I really like the Trick flow but just don't want to be back to running 10.60's as I have 8 years woth of 10.60 time slips. I have tried lots of little stuff and seems to run 10.60's all the time no matter what I change.





1024 cc swept
8cc for valve pockets
11 cc for head gasket
75cc chamber =1118cc
tdc vol 94cc=11.89 to 1
not going to get it done
You'll need really small chamber to get it to work
Need something in the 13 or 14 to 1 in my opinion
something around 60-65cc

which is why I originally opted for B1BS heads

Last edited by B1MAXX; 02/12/20 01:51 PM.
Re: Please Help Deciding On Big Block Heads [Re: B1MAXX] #2742415
02/12/20 08:40 PM
02/12/20 08:40 PM
Joined: Mar 2007
Posts: 621
Iowa
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coronetville Offline
mopar
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Iowa
800 hp on a stock block? time bomb!

Re: Please Help Deciding On Big Block Heads [Re: coronetville] #2742422
02/12/20 09:00 PM
02/12/20 09:00 PM
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hustlin hoosier Offline
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I would buy the best head you can afford. to big of a head is not a problem, down the road you may want to build a little more hp. There is no sense in trapping yourself out. I would use indy 572-13. Down the road somebody will do for them what I did for the 600-13 head and you will already own them.

Re: Please Help Deciding On Big Block Heads [Re: coronetville] #2742749
02/14/20 09:00 AM
02/14/20 09:00 AM
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Posts: 4,003
Shelby Twp. Mi
HardcoreB Offline
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Originally Posted by coronetville
800 hp on a stock block? time bomb!

Agreed, he had me at 'stock block'.

Re: Please Help Deciding On Big Block Heads [Re: HardcoreB] #2742793
02/14/20 11:03 AM
02/14/20 11:03 AM
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"Little"John
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Sorry but this is what happens when guys read the Ragazines off the book rack. Everybody makes 700 PLUS horsepower.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: Please Help Deciding On Big Block Heads [Re: HardcoreB] #2742794
02/14/20 11:05 AM
02/14/20 11:05 AM
Joined: May 2005
Posts: 1,030
ohio
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67mprfan Offline
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ohio
I see the TF heads have small exhaust valves has anyone thought about putting in bigger valves to help with flow


71 demon stock stroke 440/indy ez-1 running 10.10 @ 132.14 mph in the 1/4 and 6.36 @ 107.46 mph in the 1/8 not in the same weekend but It did it then I sold it.
67 Belvedere that worked it's way in the 10's
Re: Please Help Deciding On Big Block Heads [Re: 67mprfan] #2742891
02/14/20 03:55 PM
02/14/20 03:55 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
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Bend,OR USA
Originally Posted by 67mprfan
I see the TF heads have small exhaust valves has anyone thought about putting in bigger valves to help with flow

Why do that when you can increase the exhaust duration, if needed work When the exhaust valve opens it has a bunch of cylinder pressure waiting to escape, open it sooner to let it out longer if needed up twocents
The B1 and B1 MC heads(2.40 intake) both have 1.75 exhaust valves is what I'm remembering scope


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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