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Re: RHS INDY 360X heads!!
[Re: madmax2]
#233487
02/23/09 12:46 AM
02/23/09 12:46 AM
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Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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Except the new bosses added for dual ex patterns and dual rocker set up they look exactly like the RHS heads I just sold. Those were VERY nice castings, machining and casting quality was great. Ports were very well thought out and way better than a regular magnum head. I think they are the best iron head short of a W2.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: RHS INDY 360X heads!!
[Re: HotRodDave]
#233488
02/23/09 02:53 AM
02/23/09 02:53 AM
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Joined: Jan 2003
Posts: 5,484
SoCal
Brian Hafliger
master
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master
Joined: Jan 2003
Posts: 5,484
SoCal
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I plan to get a pair real soon and do some work to them. I'll post info and pics as soon as I do. Hopefully we can do an engine with them and get some HP #'s as well!
Brian
Brian Hafliger
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Re: RHS INDY 360X heads!!
[Re: Brian Hafliger]
#233492
03/03/09 12:26 PM
03/03/09 12:26 PM
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Joined: Feb 2006
Posts: 1,949
land of 10,000______'s
BDS871Cuda
top fuel
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top fuel
Joined: Feb 2006
Posts: 1,949
land of 10,000______'s
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I ran X heads on a 340 years ago, they made good power.
I don't think they will do as good as RPM heads,
but for $770 for new castings, you can't go
wrong.
They say 550 HP. I would bet it would have to be
a stroker with max porting.
Still a good deal.
Snap your neck, mega G-force launch, is all I want!
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Re: RHS INDY 360X heads!!
[Re: BDS871Cuda]
#233494
03/03/09 01:38 PM
03/03/09 01:38 PM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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Jesse Lackman made 520hp/548 tq IIRC on a 408 with some far from maxed out RHS 360HPST heads and a mildish (238@.050) hydraulic roller. the 360HPST heads were the starting point for these heads. here's a link to Jesse's engine threaddang it, looks like Jesse beat me (: about the only things these have in common with OEM "X" heads are the name and the fact they're iron......
Last edited by patrick; 03/03/09 01:40 PM.
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: RHS INDY 360X heads!!
[Re: HotRodDave]
#233495
03/03/09 01:41 PM
03/03/09 01:41 PM
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Joined: Feb 2003
Posts: 752
North Dakota
Jesse_Lackman
super gas
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super gas
Joined: Feb 2003
Posts: 752
North Dakota
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Quote:
Except the new bosses added for dual ex patterns and dual rocker set up they look exactly like the RHS heads I just sold. Those were VERY nice castings, machining and casting quality was great. Ports were very well thought out and way better than a regular magnum head. I think they are the best iron head short of a W2.
I didn't think of the dual ex pattern when I made my suggestions for the 360HPST to RHS a couple years ago, nice addition. I'd still like to see a version with the pushrod holes un machined or machined for offset rockers.
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Re: RHS INDY 360X heads!!
[Re: Jesse_Lackman]
#233496
03/03/09 02:19 PM
03/03/09 02:19 PM
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Joined: Mar 2003
Posts: 15,478
the boonies
aarcuda
I Live Here
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I Live Here
Joined: Mar 2003
Posts: 15,478
the boonies
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Quote:
550 would be possible, I got 520 with a 236/242 cam;
Street 360/408 dyno results (520 CHP - 540 CTQ)
wow, those were incredible numbers. Im running a hughes solid cam in my 416 that is the 245/250 @ .050. my TA heads have been obscenely ported as well.
i want too know what secrets you put into that motor (i never dyno'd mine).
What would you shift that (or my motor) at if hughhes says its good to 6100 rpm?? Ive been hitting it at 6500.
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Re: RHS INDY 360X heads!!
[Re: aarcuda]
#233497
03/03/09 08:38 PM
03/03/09 08:38 PM
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Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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Guys Guys Guys these heads are not the X heads we have had around for the last 41 years!
Flow is better out of the box both in terms of volume and quality of the air flow. The combustion chamber is WAY better than an X head. It has genourous quench areas no funky divots and the RHS has way better swirl and wet flow characturistics. Even if the X head was ported to make as much flow as a RHS head it still will not make as much power.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: RHS INDY 360X heads!!
[Re: aarcuda]
#233500
03/03/09 11:22 PM
03/03/09 11:22 PM
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Joined: Nov 2003
Posts: 5,160
Texas
dannysbee
master
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master
Joined: Nov 2003
Posts: 5,160
Texas
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aar How do your heads flow?
Getting old just means you were smarter than some and luckier than others.
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Re: RHS INDY 360X heads!!
[Re: dannysbee]
#233501
03/03/09 11:45 PM
03/03/09 11:45 PM
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Joined: Mar 2003
Posts: 15,478
the boonies
aarcuda
I Live Here
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I Live Here
Joined: Mar 2003
Posts: 15,478
the boonies
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Quote:
aar How do your heads flow?
you got me there. I didnt pay to get them flowed. But I asked for the best he had and he said I got it. I have some other pictures but theyre at work. the pushrod hump is nonexistent. the valve guides in the port is thinned and tapered. looks really nice.
I should have had them flowed but he told me not to waste my money cause he's flowed these before. i can remember any more than that
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