F/S C5R Cylinder heads, second design

[Anthony @ LGMotorsports]

I have one pair of C5R cylinder heads, second design, that I have on the shelf to sell. These are 100% un-touched from GM and impossible to get. Bare C5R Racing Cylinder Head 355-T7 'as-cast' Aluminum racing head Professional porting and machining of combustion chambers required No seats or guides C5R rectangle port design requires aftermarket rectangle port intake manifolds Designed for 2.180"/1.625" valves 11' valve angle Machined for 1.625" diameter valve springs & .500" guides Designed for big bore (4.100" min) LS7/C5R/LSX blocks 210cc 'as-cast' intake ports 70cc 'as-cast' exhaust ports, same as production LS6 30cc 'as-cast' combustion chambers All fasteners are metric Valve cover rails have O-ring groove for .125" O-ring Capable of over 800 horsepower! MSRP is well over $1990 each cylinder head. $1500 ea + shipping.

[Sébast19X]

Any flow number ?

[Anthony @ LGMotorsports]

Originally Posted by Sébast19X

Any flow number ?

They are as cast.....there is no port. Depending on what your head guy does what it would be.

They should support well over 800 hp

[007Duc]

How much would you guys charge to make these functional on my C5Z06 with say a G5X3 cam???? Would have to also list intake options, as I wouldn't have a clue where to start. Sheetmetal

[Anthony @ LGMotorsports]

Originally Posted by 007Duc

How much would you guys charge to make these functional on my C5Z06 with say a G5X3 cam???? Would have to also list intake options, as I wouldn't have a clue where to start. Sheetmetal

It would require a new block if you have a LS1/2/3/6. You need at min. a 4.100" bore. Intake manifolds today are not to hard to do like they were 10 years ago. Hogan, Wilson, Kinsler.....

[Anthony @ LGMotorsports]

Monday bump!

[Anthony @ LGMotorsports]

If you would like, we can have these ported for your engine, inquire about finishing them for you build.