RHS head info...anyone?
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?????
already decently cammed engine. IIRC the compression was also increased
from 10.1 to 10.5-10.6. I expected more. If it were me I'd go AI 241s
Registered User
Joined: May 2012
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Heads and block are both done in China. Their website shows a video of when they used to be cast and machined in New Zealand but not anymore.
On The Tree
Joined: Nov 2011
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From: South east Wisconsin
Not sure which model of heads they were but I was at Wegners and saw the rhs heads getting there cnc port work done there. Some of the best port work in the business is done at Wegner!
I am interested in the rhs heads also someone from comp cam was pushing these very hard instead of me buying afr's. I have yet to hear of someone using them on a boosted ls2 402. I was quoted $753 a piece just seems kind of cheap to me for a fully assembled head.
