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Old 05-08-2022, 11:18 AM   #1
_Onyx_Wolf_
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Dart shp lsnxt 427 head recommendations

Head recommendations for a 427 dart shp lsnext block? Car will see twin turbos in the future but right now will stay Na. Looking for a 6 bolt aftermarket head that will match well with a 4.125 bore.
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Old 05-08-2022, 11:37 AM   #2
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Frankenstein and Brodix make some affordable and nice heads

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Old 05-08-2022, 11:41 AM   #3
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Frankenstein and Brodix make some affordable and nice heads

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I was looking at the m311 from Frankenstein would I be missing out on future gains by not utilizing the 4.125 bore from the 427 with these heads?
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Old 05-08-2022, 11:53 AM   #4
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I was looking at the m311 from Frankenstein would I be missing out on future gains by not utilizing the 4.125 bore from the 427 with these heads?
The M311s are a minimum of 4.00" bore... They work well with a 4.125" bore. I have them on my 427 block. NA, the setup makes 660/560, haven't run it with boost yet

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Old 05-08-2022, 12:07 PM   #5
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The M311s are a minimum of 4.00" bore... They work well with a 4.125" bore. I have them on my 427 block. NA, the setup makes 660/560, haven't run it with boost yet

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Dope thanks for the input do u mind sharing your engine setup?
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Old 05-08-2022, 01:11 PM   #6
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Dope thanks for the input do u mind sharing your engine setup?
Here is the basic setup. Turbos are Xona 6469s in a mid mount setup.

Callie's Compatar 8 Counterweight crank
Callie's Ultra I Beam rods
Diamond -15cc pistons
Total seal rings
ARP hardware
236/244 .651/.630 116+2 LSA

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Old 05-08-2022, 04:18 PM   #7
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Quote:
Originally Posted by Omega View Post
Here is the basic setup. Turbos are Xona 6469s in a mid mount setup.

Callie's Compatar 8 Counterweight crank
Callie's Ultra I Beam rods
Diamond -15cc pistons
Total seal rings
ARP hardware
236/244 .651/.630 116+2 LSA

Sent from my Pixel 4 XL using Tapatalk
Thanks 👍
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Old 05-08-2022, 07:40 PM   #8
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I had the same. They make a “boost” version of the m311 now.
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Old 05-09-2022, 11:52 AM   #9
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My shop knew that someday I may go with a 427 LSX. They convinced me that Brodix was the way to go. Frankenstein is a name brand as well. Brodix has been around a long time and heads is their game. Between the two it probably just boils down to a preference thing for you.
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Old 05-09-2022, 08:12 PM   #10
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My shop knew that someday I may go with a 427 LSX. They convinced me that Brodix was the way to go. Frankenstein is a name brand as well. Brodix has been around a long time and heads is their game. Between the two it probably just boils down to a preference thing for you.
Brodie looks good too I think the m311 heads come with 72cc standard? When I had the motor built I went off my my old prc260s with 68cc and came to a 9.5:1 compression ratio. Would going with the m311 72cc throw my compression out of wack?
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Old 05-16-2022, 12:30 PM   #11
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Quote:
Originally Posted by _Onyx_Wolf_ View Post
Brodie looks good too I think the m311 heads come with 72cc standard? When I had the motor built I went off my my old prc260s with 68cc and came to a 9.5:1 compression ratio. Would going with the m311 72cc throw my compression out of wack?
Yea, unless you mill them. That would probably drop your compression down too low. I was always told to not give up compression with your piston choice, when you can do it with your head choice. Much easier to change.

For sure Brodix is a great head company. I'd be happy with Mast also. no experience with them tho.
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Old 05-22-2022, 04:53 PM   #12
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Broadix

I run broadix on my ls my bore 4.125 . I also have a new set of broadix br7 head new if your looking $3800. Shipped.on my twin turbo setup making upper 1500hp on 24lbs boost. With only 9.5.1 co.pression.
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Old 06-04-2022, 12:06 PM   #13
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I have the M311 heads on my 427 Dart SHP. Twin turbo, Westgates are set at 10psi, ****er is an animal. I haven't gotten into full boost yet, since I broke a bearing in my trans.
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Old 06-05-2022, 06:15 PM   #14
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I have mast I like them
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