lt1773

iTrader: (1)

Hi Folks

I would like to hear from you guys if anyone has installed these RHS Pro Elite 291cc heads on LS7 .


Pro Elite CNC Machined/Ported Rectangular Port Aluminum Heads for LS7 (4.125Bore minimum).

-291cc Intake Runners,69cc Combustion Chambers.
-Valves: Manley 2.200" Intake & 1.615" .
-Standard LS 6-bolt head design is compatible with the advanced RHS®LS Race and popular GM LSX Blocks.
-100% CNC-machined runners optimize volume, atomization and velocity.
-Improved clamping capacity greatly head gasket retention in high horsepower and boosted applications have .750" Thick deck surface integrity.
-Reinforced solid rocker rail increases rigidity and stability; 355T6 aluminum withstands race conditions
.400" Raised rail works with aftermarket rockers; .100" raised exhaust port allows use of stock and aftermarket manifolds


Thanks in Advance !

lt1773

iTrader: (1)

No one !!!!

badassracing

iTrader: (13)

They look and sound like nice heads I was wandering if anyone had any experience with them too. The intake ports are HUGE though. Kinda makes me wonder how they would work on a street engine.

lt1773

iTrader: (1)

yea , they have raised intake port ,exhuast port & rocker arms for extra clearance .

i am comparing them to : Mast Inline Valve PXR 12 Degree 4.125"-4.200" 6-Bolt CNC

http://www.mastmotorsports.com/2010/...p?cat=Cylinder Heads - Bare&id=351

Firehawk441

iTrader: (41)

If you're looking for an INLINE VALVE cylinder head then the PXR is the way to go.

Jimbo1367

who is PXR? They look like MMS'S MOZEZ heads.

LPE 403

iTrader: (6)

Mast Inline

Mast Inline here too....

Firehawk441

iTrader: (41)

Both made by Mast but....
The PXR and Mozez heads have many differences

kevin87turbot

iTrader: (2)

The RHS LS7 heads are nice pieces. However, the intake runners aren't as large as it may seem at a glance. They are 291cc intake runners, but they are also raised runner heads. They have an extended face that adds runner length and volume. This allows a standard FAST LS7 intake (as well as other LS7 type intakes) to be used. For this reason, when you compare the cylinder heads, you should look carefully at runner CSA.

LilJohn

440ci at 12:1
The head you are talking about.
A solid roller cam i did thats roughly 254/271@.050.
Holley Hi Ram intake...

Made 773@8000 and it hadnt peaked yet... owner got nervous and wouldnt let the dyno guy go 8500.

Cam wasnt intended to peak that high.

With a tweak to the camshaft, intake porting and some more tuning that motor will make 800-820 hp na pretty easy we think.

lazaris

iTrader: (5)

Im using a set of these on a turbocharged build. They appear to be a quality casting.


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lt1773

iTrader: (1)

wow nice setup
it seems RHS heads is the way to go .

lt1773

iTrader: (1)

any more input ??