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Re: New INDY?RHS "X" Heads Tech Article
[Re: S/ST 3040]
#374863
08/18/09 12:15 PM
08/18/09 12:15 PM
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Joined: Nov 2008
Posts: 660
San Diego
formula S
mopar
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mopar
Joined: Nov 2008
Posts: 660
San Diego
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Quote:
Quote:
I was talking to a nhra E/SA 340 6pk racer and he said nhra allows the piston to be .045 out of the hole. I just did a 340 an used L2316 piston w/ a 1.84 cd and they ended up .035 out of the hole. This block has been decked,I'm sure your right about the .018 factory spec. Thanks Ryan
+ .045" is NHRA Blueprint spec on 68-71 340.......not factory specs. 
 and for this particular engine the chambers would have to be relieved, and so like edelbrock maybe they should offer two heads
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Re: New INDY?RHS "X" Heads Tech Article
[Re: S/ST 3040]
#374865
08/18/09 02:07 PM
08/18/09 02:07 PM
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Joined: Nov 2008
Posts: 660
San Diego
formula S
mopar
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mopar
Joined: Nov 2008
Posts: 660
San Diego
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Quote:
Other than the KB pistons, most manufacturers, that still
have a shelf piston, offer them in a true flat-top around
1.804" CH or less.
I'd rather have a decent closed chamber and zero deck, myself
or custom for OEM chambers.
But I've got to work with the parts and budget I have been presented with
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Re: New INDY?RHS "X" Heads Tech Article
[Re: 2264PLY]
#374869
08/21/09 10:33 AM
08/21/09 10:33 AM
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Joined: Feb 2005
Posts: 2,679
owt west
Thread Ender1
master
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master
Joined: Feb 2005
Posts: 2,679
owt west
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Quote:
Will W2 headers work with these heads?
Yes, its a dual bolt pattern, but if you have the type that use adapters like Hookers you might need to modify the flange that bolts to the head.
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Re: New INDY?RHS "X" Heads Tech Article
[Re: HotRodDave]
#374873
08/21/09 07:11 PM
08/21/09 07:11 PM
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Joined: Aug 2009
Posts: 235
Central Mississippi
mopar97
enthusiast
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enthusiast
Joined: Aug 2009
Posts: 235
Central Mississippi
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At a glance they are close. I am going to try and use them in a dirt track car and pass them off as factory X heads. Our tech guys are chebby lovers and know little about mopars.
At a track or series with knowledgeable people....forget it.
My factory magnums are at 1.760 IH and I haven't had a problem. We cut the seat and used a +.050 retainer that Hughes has. We ran at 6800 MAX RPM. I do not build heads like some of these guys do. so take that for what it is worth.
Allen
Last edited by mopar97; 08/21/09 07:19 PM.
Mopar born, Mopar breed, when I die, call me Mopar dead!
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