Author Topic: heads for 400  (Read 1007 times)

Offline triple black

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heads for 400
« on: June 24, 2005 - 02:54:44 PM »
I'm looking at a set of 346 heads to go on my 400.  88 cc open chamber, 3 angle valve job, ported, new seals and HP springs good to .520 lift.  2.08 int  1.74 ex.  My 400 bottom is stock.  I'm looking at pairing this with the Engle K-56 cam that Chryco recommended in another post.  Right now I have a Performer 383 intake and 650 Holley.  How do these heads match up?  Right now I just have stock heads with a 3 angle valve job.




Offline triple black

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Re: heads for 400
« Reply #1 on: June 24, 2005 - 05:26:09 PM »
Nevermind.  I was outbid.

Offline Chryco Psycho

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Re: heads for 400
« Reply #2 on: June 25, 2005 - 01:41:49 AM »
I would look for a set of 516 closed chambers to bump the compression up

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Offline triple black

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Re: heads for 400
« Reply #3 on: June 29, 2005 - 11:44:44 AM »
Thanks.  I'll keep an eye out for the 516s.  There doesn't seem to be many around though.  Also, after reading some of these other posts I think I'm under carbed with the 650, especially if I'm going with the K-56 cam.  Am I?  It looks like a 750 would be better.  Seeing as I don't see many 516s around, how would ported 516s compare to an out of the box set of Edelbrocks?

Offline Chryco Psycho

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Re: heads for 400
« Reply #4 on: June 29, 2005 - 09:37:20 PM »
Eddys will out flow the 516 heads even ported well But Eddys bring problems as well , the valve are Not in the stock location so piston to valve problems can occur with mild cams , also you have angled plugs which can cause exhaust interference problems also the rocker do not center over the valve tips properly & you will Lose compression ratio as well

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Offline triple black

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Re: heads for 400
« Reply #5 on: June 30, 2005 - 07:54:05 AM »
Thank you, Chryco.  Plenty of food for thought there.

Offline Chryco Psycho

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Re: heads for 400
« Reply #6 on: July 01, 2005 - 12:17:12 AM »
 :thumbs:

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