guinness2

Does anyone have any info on these, this is what I found so far.





New CNC-machined heads maximize flow, atomization and velocity to unlock LS1/LS6 performance potential Racing Head Service™ (RHS™) announces the arrival of two new GM Gen III (LS1/LS6) cylinder heads for high performance applications, available with either 210cc or 225cc intake runner port volumes. Best of all, the RHS™ design team has re-engineered the valve placement, rolling it over 4-degrees from stock and creating an 11-degree valve angle. The result is additional free drop spacing to accommodate high lift cams, therefore avoiding piston interference and dramatically increasing the volume, velocity and atomization of the intake port.

As part of the Pro Elite™ series, the new RHS™ Gen III aluminum cylinder heads are fully CNC-machined for consistent quality and maximum CFM flow. Incorporating a 0.800-inch thick deck surface (twice the factory spec) increases the integrity of the deck surface, making it perfect for high cylinder head pressure applications and creating a combustion chamber that can be decked to 36cc. Steel inserts strengthen the stud boss area, while casting integrity is further improved via the triangulated exhaust and hardened steel head bolt washers. Raising the valve cover rail 0.500-inch allows for the creation of the raised roof port and allows aftermarket rocker systems to be used without a valve cover spacer. For more information about the RHS™ Pro Elite™ Gen III Cylinder Heads or any other RHS™ product, call us at 1-877-776-4323, or visit us online at www.racingheadservice.com.

QUICK SUMMARY Product: • RHS™ Pro Elite™ Gen III Cylinder Heads Part Number: • #54001 (210cc) • #54002 (225cc) Features and Benefits: • Two new versions available: 210 & 225cc intake runners • Features 11-degree valve angle – rolled over 4-degrees from stock 15-degree setting • Intake valve sizes: 2.040” x 5.540” (210cc) / 2.080” x 5.450” (225cc) • Exhaust valve sizes 1.570” x 5.450” (210cc) / 1.600” x 5.450” (225cc) • Stock 62cc combustion chamber can be milled to 36cc • Fully CNC-machined runners & chamber optimize volume, atomization and velocity • Steel inserts incorporated for increased strength in the stud boss area; accepts all Gen III manifolds • Improved valve guide material and hardened valve seats for extended durability, even in extreme applications

oange ss

iTrader: (50)

sounds like ETP heads to me.......

guinness2

RHS sounds like the same company that made PRO-ACTION heads, they used to make some serious stuff. They are part of the Comp performance group, Comp Cams and Fast. I don't believe ETP is part of that

BULLET99Z28

iTrader: (9)

they sound nice, gonna have to remember that name,hopefully heads/cam this summer

oange ss

iTrader: (50)

the head description sounds like ETP's heads

Beast96Z

iTrader: (21)

I agree. Sounds like they are using ETP's castings. It may be their own CNC program running through them, but that's about it.

Unaffliated Racing

iTrader: (15)

They are ET's heads....for now atleast......

SStrokerAce

iTrader: (2)

They have their own foundry! They are their OWN HEADS!

guinness2

They make there own, read page 5 http://www.powerandperformancenews.c...formance_2.pdf

Unaffliated Racing

iTrader: (15)

you are telling me stuff that I already know. I know things you don't. They bought the foundry right at a year ago. They haven't had time to design and cast a brand new head. They will be but for now they are using an ET head. They are late in the game and need to get in on it so using an ET head is how they are doing it.

guinness2

with all these new castings coming to market hopefully it will drive the prices down on all heads.

Unaffliated Racing

iTrader: (15)

Yeah lets hope. Not sure when RHS will have their own casting but i'm sure they are working constantly on it.

SouthFL.02.SS

^
If you're in with the Comp guys, tell them to fix their damn 90mm TB design already.

Back to topic. End hijack.

Unaffliated Racing

iTrader: (15)

key word is "was" Don't hold your breath on the TB...it's been an ongoing issue for two years....