RHS head info...anyone?
05-01-2012, 08:36 PM
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RHS head info...anyone? Hey guys Ive just been trying to find some info as far as forum data on this and multiple other forums for the RHS line of cylinder heads for LS1's. The information/dyno numbers/pictures have been lacking to say the least. I know RHS makes some good products but the prices I saw that drew me to research this looked promising. I know their are dozens of good budget heads, just trying to research something different I dont know much about product wise. Sponsors or tech gurus chime in as you please. Guys if you have any personal experience with the LS! heads from RHS can you post up some pros/cons and/or before and after dyno numbers? Thanks guys!
Oh and before anyone says do a search, I have. I just didnt find the info I thought to be detailed enough.
Oh and before anyone says do a search, I have. I just didnt find the info I thought to be detailed enough. 
05-02-2012, 03:44 PM
#2
I just bought a set of RHS Pro Elite LS7 heads. I'm waiting for a valves and rockers for them. Cant say much as far as performance but they look real good and and use a very high quality aluminum. They will be used in a turbocharged application.
05-02-2012, 04:34 PM
#3
For some reason their are few on this wagon. I can't understand this, they have the best 14 degree head ever made when they took over ProTopline. I would have guessed when these came out people would have put 2 and 2 together... I am interested too, if anyone has actually poured the runners to confirm volume.
05-02-2012, 08:46 PM
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Could you post a few pics of yours please? Chambers, runners? I am interested in them like the "as-cast" ones they have due to price, but the CNC ones were decently priced also. Just wondering if the as cast ones perform as well as the AI 241s Ive been pondering.
05-03-2012, 11:46 PM
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bump...wow no pics or any other real world results/info? These must not really be used too often? Sponsors, any pics of these in your inventory or customer builds?
05-04-2012, 12:53 PM
#6
I'll get a few up shortly.
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05-05-2012, 07:44 PM
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Why are the runners and Chambers yellowish are they coated or have they been ran? I'm viewing on my cell so that may be why. Either way they look real good. I wish I could find some power numbers or a comparison sometimes done? Too bad i'm not loaded or I'd do it lol.
05-07-2012, 11:25 AM
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I have been looking at these too. I remember Gm high tech performance did a two part cam and head swap not long ago. Jan 2012, pg58. They used a 99 camaro with LTE headers,ls6 manifold under drive pullies with a t56 and 10 bolt rear. Dyno'd 323/333.
Cam swap first. 232/234, .595/.598, 112 lsa. Heads are the the clean cast with 205 runners.
Cam swapped in first and made 362/336. Looking at the graph, it gave up some low end power (below 4500) for top end gain.
Heads...after installed, the numbers were 382/(looks like 350ish).
Started out at 321 and ending at 382 after heads and cam swap, isn't that impressive to me. According to the article they did tune it.
Is anyone running these heads yet?????
Cam swap first. 232/234, .595/.598, 112 lsa. Heads are the the clean cast with 205 runners.
Cam swapped in first and made 362/336. Looking at the graph, it gave up some low end power (below 4500) for top end gain.
Heads...after installed, the numbers were 382/(looks like 350ish).
Started out at 321 and ending at 382 after heads and cam swap, isn't that impressive to me. According to the article they did tune it.
Is anyone running these heads yet?????
05-08-2012, 02:45 AM
#11
For some reason their are few on this wagon. I can't understand this, they have the best 14 degree head ever made when they took over ProTopline. I would have guessed when these came out people would have put 2 and 2 together... I am interested too, if anyone has actually poured the runners to confirm volume.
05-09-2012, 12:15 PM
#13
Why are the runners and Chambers yellowish are they coated or have they been ran? I'm viewing on my cell so that may be why. Either way they look real good. I wish I could find some power numbers or a comparison sometimes done? Too bad i'm not loaded or I'd do it lol.
05-09-2012, 03:20 PM
#15
rhs didnt make the 14 degree heads..pro topline did and yes they are sick heads..once rhs took over they only really made the bbc reg heads and sbc 23 degree heads..granted both the bbc and sbc rhs heads make power when ported..what i remember about the rhs is that they bought dart castings or something and the rhs are really the old dart heads..this is what i have read over the yrs from here and other sites..is it true i cant say honestly.
05-18-2012, 11:48 AM
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RHS is not the company they once were. Heads are cast in China and warehoused at comp
