L92 Head Questions
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From: Wichita, Ks
L92 Head Questions Does anyone know the answers to any of the following questions:
1. What is the casting number on the L92 Heads?
2. What is the P/N for heads with valves (probably includes springs and retainers)? Note: the bare head P/N is 12582714, that much we know.
3. What are the flow rates for the as cast heads? GM Hi-Performance asserted that ported heads would yield 280 CFM @ .400" and 350 CFM @ .600" on the intake. I'm interested to find out about the stock I/E flows.
4. Will standard and aftermarket beehive style LS Series springs and retainers work on these heads?
Thanks,
Steve
1. What is the casting number on the L92 Heads?
2. What is the P/N for heads with valves (probably includes springs and retainers)? Note: the bare head P/N is 12582714, that much we know.
3. What are the flow rates for the as cast heads? GM Hi-Performance asserted that ported heads would yield 280 CFM @ .400" and 350 CFM @ .600" on the intake. I'm interested to find out about the stock I/E flows.
4. Will standard and aftermarket beehive style LS Series springs and retainers work on these heads?
Thanks,
Steve
Thread Starter
LS1 Tech Veteran
iTrader: (1)
Joined: Oct 2003
Posts: 1,170
Likes: 0
From: Wichita, Ks
TTT
A number of people have looked (54 at this writing), does anyone have any thoughts on any of these questions? I'm sure that a number of people must be curious about the same things.
I'm also interested in intake and exhaust runner port volume. These heads look extremely easy to to a little clean-up porting by hand from what I've seen.
Steve
A number of people have looked (54 at this writing), does anyone have any thoughts on any of these questions? I'm sure that a number of people must be curious about the same things.
I'm also interested in intake and exhaust runner port volume. These heads look extremely easy to to a little clean-up porting by hand from what I've seen.
Steve
Originally Posted by Steve Bryant
TTT
A number of people have looked (54 at this writing), does anyone have any thoughts on any of these questions? I'm sure that a number of people must be curious about the same things.
I'm also interested in intake and exhaust runner port volume. These heads look extremely easy to to a little clean-up porting by hand from what I've seen.
Steve
A number of people have looked (54 at this writing), does anyone have any thoughts on any of these questions? I'm sure that a number of people must be curious about the same things.
I'm also interested in intake and exhaust runner port volume. These heads look extremely easy to to a little clean-up porting by hand from what I've seen.
Steve
mostly, because im waiting for the answer to #2 there... along with the info i need for that holden intake/fuel rails... and the rocker and retainer info.
as much as id like to be a helpful pioneer with this, im too budget limited to spend that much and not know if it'll work.
for example, i THINK #4 is true.. they look like the same springs.. but if im wrong, thats another chunk of change to fix that problem..
