WizeAss

iTrader: (5)

Ok.... from what I saw....


Heads bare 175.00 eah
Heads assembled 399.00 each

Intake valves run 14.XX each and exhaust valves run 17.XX each


I assume to buy them bare and order the intake and exhaust valves separate or buy a 1.6 exhaust valve and keep the stock intake?? Either way if you are buyin them to do some work on em it would be better to get them bare, since a aftermarket spring/retainer etc kit is necessary?

150 for exhaust valves, 350 for bare heads, 130 for intake valves, 290 for spring kit, ='s....drum roll please.......... 920.00 bones vs 800.00 for assembled stockers and ya still gotta pay for the darn spring kit.

Man if some produced mild ported heads with valve seat work, milling, exhaust porting with a spring kit for under 1100.00 bones that would be a steal!!!

am i missing something here?

WizeAss

iTrader: (5)

I dont want to make the same mistake twice... as I paid 399.00 for the bare L76 intake before SPDC sold them fully assembled for 528.00 with all the rails/injectors/TB etc.

See5

iTrader: (53)

The springs you get with assembled heads are probably not going to make it with cam and if you change the springs you will likely have to change the seals. The valves themselves are steel and no great shakes, so in the end what will you pay for the valves?

The injectors with the intake package have the new style injectors which will reqire adapters?

V6 Bird

iTrader: (15)

Bare if Chris is still working the heads over..

With some bowl work and chambers only and a valve job on the intake its already flowed 373 cfm @28" @ .650 lift and it wasnt backing up on the intake in his R&D on them. he hasnt touched he runners at all yet.

If someone would over a set for 1100 they would make a flowbench happy for sure. The timeslip wont be there to back them up with but the dyno numbers would be...

Why are we going over this again anyway. The heads and cam were already taken care of last time I had heard and now you are asking questions on the subject again?

DoesSpeedTurnUon

iTrader: (17)

I'm using stock valves and PRC gold springs. My problem is intake valves are on back order, and noone else has them.

KAOS

iTrader: (5)

im suprised tsp hasnt got something in the works for a set of l92 heads. look what they did with the ls6 heads. i think they could do something for 1100 or so.

Ellwood

iTrader: (1)

I'm going with bare. I just don't want to pay for parts I'm not gonna use.

And I'm wondering what valve choices will come along before I get everything assembled. There will be many parts available in the coming months. I saw Jesel rockers setups and talked to the FAST Intake rep at PRI.

WizeAss

iTrader: (5)

Chris or Erik's guy........ which I assume maybe Greg Goode?..... one of em will be doing the heads. At this point is it a matter of price and convenience.

Other point is that I still need to buy heads. Just didnt know if it was worth buying assembled vs non assembled.

WizeAss

iTrader: (5)

still no aftermarket valves on the market except for a 1.6 exhaust valve option.... someone needs to get on the stick and do a 2.16 or 2.17 intake valve!!!!!!!

V6 Bird

iTrader: (15)

Well i do know that Chris doesnt talk just to hear himself talk. And he has 4 set s of L92 heads bare at the shop.

camarols1

iTrader: (17)

I called Manley, and they are supposed to be releasing new part numbers
for their stock size 2.16/1.59 stainless valves in a few weeks.
The part numbers will be 11620 and 11621.
I was told that the intake will be a "race flo" necked down stem, and the exhaust will be a "race master" straight stem.
I hope they get on the stick so I can get my project rollin!
Jobber price is said to be about $20 bucks each, seems like a deal!
Does anyone have an opinion on the durability of a stainless valve in a twin turbo (800+HP) setup?
Ferrea does makes a 1.60 exhaust valve designed for a turbo application, so I may use the Manley 2.16 intake and the Ferrea 1.60 on the exhaust just
to be safe.
Any thoughts on this?

jtl12419

iTrader: (13)

What's wrong with the stock springs and valves that come on the assembled heads?

Does anyone know the specifics on the assembled head components? (or point me to the source)
Dual or single springs, lift limit?
Steel or tit retainers?
Locks?

Rocker ratio?

Aftermarket source? PRC, TEA?

WizeAss

iTrader: (5)

stock valves are heavy... they are not setup to withstand the heat as a stainless aftermarket valve. the stems are not as strong in some instances.

stock lift assembled is the same as a LS1 head....... not even LS6 springs IIRC.... either way you wont be able to go more than .580 lift on those heads stock. No point in buying the head as assembled unless you are doing a stock cam.

Patriot .650 spring kit seems like the way to go. If Manley comes thru on an aftermarket 2.16 valve.......... This freight train is rollin!!!

DoesSpeedTurnUon

iTrader: (17)

fixed... i'm thinking about ditching the stock ones i have on order and using these now.

WizeAss

iTrader: (5)

This was the main reasons why I dont feel bad about waiting for some stuff to hit the market...... If the valves wherent available in IMO I was planning on using a el' cheapo cam and as sold head combo until they where. I didnt want to have to work the valve angles in the heads twice.

Ellwood

iTrader: (1)

Nothin' but:

".510" max valve lift with stock springs"

from the GM Performance Parts Catalog

jtl12419

iTrader: (13)

Will LS1 style springs (from my growing "collection" of used parts) and rockers work on this head?

Can I move mine over from my LS1 heads? Are rockers 1.7 on the L92?

Ellwood

iTrader: (1)

Don't know about the springs, what do you mean by 'LS1' style? I belive most LSx springs are similar, but there is another thread around here talking about the seals interfering. Not sure on the details. I think the ID is the issue.

Rockers on L92 are 1.7:1, however, the intake rockers are offset like the LS7.

2c5s

iTrader: (11)

REV just made me a set of intake valves for my L92's, 2.160 ,pro flow style swirl polished S.S. 104 grams @ $156 for the set. They had them done in 1 day. Nice valves.....

jtl12419

iTrader: (13)

Nice! What, where, is REV? (How to contact?)

What springs did you use? I am planning on taking the Comp cam springs off of my LS1 heads to put on these.