L92 heads

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Jan 8, 2008 | 08:40 PM

#21

supersub

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Call randy Jr. over @ harland sharp,he will set you up.BTW Minor machining WILL be required for clearances,WCCH includeds it in there cnc programs on the L92's.

Jan 9, 2008 | 01:40 AM

#22

Hans Grüber

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Quote:

Originally Posted by supersub

Call randy Jr. over @ harland sharp,he will set you up.BTW Minor machining WILL be required for clearances,WCCH includeds it in there cnc programs on the L92's.

Can you post pics of the head modifications required?

Jan 9, 2008 | 10:54 AM

#23

Richard@WCCH

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From: Van Nuys, CA

Here' you go:

Richard

Jan 9, 2008 | 11:16 AM

#24

Stang's Bane

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Quote:

Originally Posted by AU N EGL

I know I dont have the whole picture, but what is the TQ like from 3000 to 4100 RPMs?

Is something like this going to take off slow, then kick in at 4200 up to 6400 rpms?

TIA

VTEC!!!

Jan 9, 2008 | 12:09 PM

#25

BES Stroked Nova

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PRC L92's are going on a 6.0L shortly... and you might as well get the LS3 valves.

Jan 9, 2008 | 12:36 PM

#26

black_z

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Quote:

Originally Posted by BES Stroked Nova

PRC L92's are going on a 6.0L shortly... and you might as well get the LS3 valves.

LS3 intake valve is different, LS3/L92 exhaust valves are the same.

Jan 9, 2008 | 02:54 PM

#27

Hans Grüber

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Thanks for posting that Richard, does the rocker cover have to be modified as well?

Jan 9, 2008 | 06:08 PM

#28

Richard@WCCH

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Quote:

Originally Posted by Hans Grüber

Thanks for posting that Richard, does the rocker cover have to be modified as well?

Not to my knowledge. They should fit right on.

Good luck,

Richard

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Feb 5, 2008 | 08:05 PM

#29

OnyxSilveradoSS

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Quote:

Originally Posted by black_z

LS3 intake valve is different, LS3/L92 exhaust valves are the same.

is there an assembled head using the LS3 valves?

Feb 12, 2008 | 01:02 PM

#30

Red Goat

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From: North Houston

L92 heads

What is the rocker ratio on the L92 heads on the 6.0 with stock springs?

Feb 12, 2008 | 01:52 PM

#31

WKMCD

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FYI - I just installed a set of Yella Terra Ultralights in my L92's with no interference problems.

Feb 12, 2008 | 06:27 PM

#32

RAGENZ28

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Can we get some flow ratings, intake and exhaust charts?? Stock head/stock valves vs. some of you sponsors ported, cnc ported and with various valve sizes?

I wanted to use these on a 402 or 408 with a F1A Procharger for my 800-900 rwhp pump gas monster =)

Feb 12, 2008 | 06:50 PM

#33

prince_ws6

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Quote:

Originally Posted by JDP

anything with a 4in bore

yes hes right

Feb 12, 2008 | 07:20 PM

#34

Johny GTO

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it seems the L92 heads only show there worth on stroker motors over 402ci.

on stock cubes, they dont seem to perform to well.... well i should say they perform on a level under stock port and polished ls6 heads and after market heads.

yes?

Feb 13, 2008 | 10:58 AM

#35

black_z

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Well, cam only LS3 vettes are making 475+ RWHP. If you get the VEs correct, they will make great power.

Feb 13, 2008 | 11:21 AM

#36

slt200mph

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From: HOT'LANA, GAWJA

Quote:

Originally Posted by black_z

Well, cam only LS3 vettes are making 475+ RWHP. If you get the VEs correct, they will make great power.

Cam, headers, vararam, and a tune are doing well over 500+ rwhp in LS3 Vettes..

Feb 13, 2008 | 01:59 PM

#37

Johny GTO

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Quote:

Originally Posted by slt200mph

Cam, headers, vararam, and a tune are doing well over 500+ rwhp in LS3 Vettes..

then what is the problem with these heads on the ls2's?
they dont come near that without loads of work.

what needs to be done to get the same results on an ls2, cause it seems that the people tunin and building these arent getting the VE's right, i guess??