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Author Topic: 76 400, 452 heads on a 413??  (Read 1720 times)

Steve

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76 400, 452 heads on a 413??
« on: November 09, 2010, 06:43:19 AM »

I have a set of 452 heads form a 76 400, I was thinking of working.  I was thinking of putting these on a 62 413.  The stock head is open chamber and the 452 heads are closed chamber.  The stock compression ratio on the 413 is 10:1.
 
What would happen if I put the closed chamber heads on the 413?  I've heard it done on 440's with success.
 
I need to check the bore sizes and valve sizes yet
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Snotty

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76 400, 452 heads on a 413??
« Reply #1 on: November 09, 2010, 08:20:37 AM »

I was told the '62 413 had closed-chambered heads.  That's why I was advised against using the set of 906s that I have.





 
??
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Steve

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76 400, 452 heads on a 413??
« Reply #2 on: November 09, 2010, 09:13:39 AM »

They are, but a different design.  These have the loop in between the valves while the 413 are straight across
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Stan Paralikis

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76 400, 452 heads on a 413??
« Reply #3 on: November 09, 2010, 11:37:30 AM »

Put in hardened seats and you're good to go.  make sure you use tapered seat plugs instead of the reg. plugs.  

Jason Goldsack

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76 400, 452 heads on a 413??
« Reply #4 on: November 09, 2010, 12:06:16 PM »


452's are open chamber.... putting the 452's on the 413 would lower the compression but gain you the larger exhaust valve..

The 413 would have came with closed chamber heads from the factory...



1965Windsor3612010-11-09 17:07:34
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Jason

(Eileen)1965 Chrysler Windsor, 361/727/2.76 16.49 @ 86 mph

Steve

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76 400, 452 heads on a 413??
« Reply #5 on: November 09, 2010, 12:20:40 PM »

I don't know what the CC rating is on these heads. .. . But the closed part is larger than the ones on the 413.  I haven't done the valve size checking yet.  I don't know if I can find that dimension.  Hellooooo Summit
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Jason Goldsack

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76 400, 452 heads on a 413??
« Reply #6 on: November 09, 2010, 12:51:37 PM »

The closed chamber heads on the 413 would be much like the 516's that came on my 361.

The 452 I think has chambers around 85 CC versus the closed chamber with 73 cc.. if I remember correctly.


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Jason

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Steve

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76 400, 452 heads on a 413??
« Reply #7 on: November 09, 2010, 12:56:46 PM »

If that's the case, then a slightly lower ratio may work to my advantage.  With todays gas, that might be a blessing in disguise.  But the larger exhaust valves would offset that in performance, but what about MPG?
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Scott

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76 400, 452 heads on a 413??
« Reply #8 on: November 09, 2010, 01:14:49 PM »

I'm running 452's on my '65 383.  Compression is lower but as Steve pointed out, you almost have to with today's gas; especially the stuff we get here in So Cal.  With the right cam selection, low compression motors can run almost as strong as a high compression counterpart.  I'd run the 452's.
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Tom Dawson

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76 400, 452 heads on a 413??
« Reply #9 on: November 09, 2010, 01:36:03 PM »


[/QUOTE]


452's already have the hardened seat in them


Tom

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Steve

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76 400, 452 heads on a 413??
« Reply #10 on: November 09, 2010, 01:47:39 PM »

I did a bit of research.  The same valves are used from the 400 to the 440.  Seems to includ all the years. exhause is 1.73 and the intake is 2.08".  The same valve is used in in the 63 Hemi as well.  seems to be 63 only.
 
That kind of blew my logic.  But I do get hardened seats.  If I use these heads, the flow better and I do get the seats.  Going from 85 to 73 will probably take me from 10:1 to 9:3.  That will let me run regular gas. .  .
 
I don't think that will hurt my performance much, the 62 body is actually pretty light.  With adding an overdrive to the engine, I might be OK with these heads.  But I'd like to hear from more people on this.
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Jason Goldsack

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76 400, 452 heads on a 413??
« Reply #11 on: November 09, 2010, 02:44:55 PM »

The 516's have the little 1.60 exhaust valve...

I run the 452's on my 361.. factory was 9.6 I bet I'm around 8 to 1 now.. Works great and never pings.. run on regular gas.

BTW.. I ran a stock piston 400 in my BB aspen I used to have.. it worked out to 7 to 1 compression during the reringing.. I put a 494/292 cam, M-1 Intake, 750 holley, 3000 stall and 3.91 gear and ran 12.80@ 109.. at 3900 lbs..

going the opposite way.. my buddy installed the 1.73 exhaust valve in some 516 heads, and put it on a low compression stock piston 440 with a 509 MP cam. It bumped the compression up to 9.5 to 1 and he ran 12.16 in a Challenger..




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Jason

(Eileen)1965 Chrysler Windsor, 361/727/2.76 16.49 @ 86 mph

Steve

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76 400, 452 heads on a 413??
« Reply #12 on: November 09, 2010, 02:58:01 PM »

[/QUOTE]

These are closed chamber heads.  Maybe their not  452's then.  LEABURN!
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Jason Goldsack

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76 400, 452 heads on a 413??
« Reply #13 on: November 09, 2010, 04:09:49 PM »



Do you have a part number? The 452 is the last three digits..

From the 906 heads in 68 up to 77 they were all open chamber. The lesser known 346 heads were open chamber in 71-74.

The 915 were basically a 516 with the larger exhaust valve and the throat enlarged under the seat to match up with the larger valve . ( if you grind the seat in 516's for the 1.73 you need to take out that metal under the seat to open it up to the 1.73 valve size)

1965Windsor3612010-11-09 21:14:35
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Jason

(Eileen)1965 Chrysler Windsor, 361/727/2.76 16.49 @ 86 mph

Jason Goldsack

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76 400, 452 heads on a 413??
« Reply #14 on: November 09, 2010, 04:13:28 PM »

here is some reading about the different heads for you steve..

Mopar Heads


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Jason

(Eileen)1965 Chrysler Windsor, 361/727/2.76 16.49 @ 86 mph

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