Sales@Tick

iTrader: (3)

At 10psi as Bob@Brute Speed said there won't be any trouble. Be wary though of trying to really pour the coals to it with more than 15-17psi. Many users will have good luck doing something for a while and get comfortable with it and then one day it turns around and bites them.

Just keep the boost and timing on the conservative side to keep cylinder pressure down within reason and you'll be ok. That is until 10psi isn't enough...and that will happen quicker than you think

Bob@BruteSpeed

iTrader: (16)

No doubt, boost is very addicting!!!!

Louis

iTrader: (7)

You guys crack me up.

Just because joe blow ran xxxxxhp with the head doesnt automatically fix the fact its a garbage casting for boost. LSA heads are not much more money, and substantially better castings.

67Firebird455

iTrader: (27)

They definitely look a lot less porous. Deck is the same thickness?

brians91formula

iTrader: (12)

How do LSA heads perform naturally aspirated? car will be N/A for a year before getting the blower most likely.

midevil1

iTrader: (17)

I just bought a NEW set of LSA's for 425.00 shipped to my door. Next to a L92 head, they look like a billet piece No freeze plugs and what not..

67Firebird455

iTrader: (27)

Mind sharing where you got them for that price? =)

Danny

iTrader: (16)

I'm assuming those were bare heads right? Where did you get them from?

eb02z06

iTrader: (18)

I would agree with Louis here, why even bother with a L92 head with the LSA head available. Pretty much the same LS3 port design but MUCH STRONGER.

winters97gt

850/800 to the tires. 402, ls3 heads, novi 1500 at 13.5psi. You couldn't have beaten on a Street car harder than I did. Heads worked great.

midevil1

iTrader: (17)

I got them from NIGHTMARE BREED MOTORSPORTS LLC. They are out of Midland Texas. They are bare, but that is the only way I buy em..

I have a set of L92's and I have these. The LSA's are A356T6 and they are Rotocast. NO POROSITY. Look billet like..

brians91formula

iTrader: (12)

How does the LSA head compare to the L92/LS3 head when the compression ratio is the same? Any ideas?

dudeman

iTrader: (43)

how do the l92 heads compare to the 317 heads casting wise? is there a difference in material?

dudeman

iTrader: (43)

what about deck thickness between 317 and l92/ls3 heads?

PRAY HRD

iTrader: (119)

also how do the LSA heads compare in deck thickness to 317's? I'm assuming as cast it will outflow an as cast 317 correct?

Louis

iTrader: (7)

They will murder a 317.

There is a wing to aid in swirl and emissions on the valve guide, because of the roots blower. we machine these out when we put them on standard manifold cars, and even the ZR1s, we remove them with out issue.

I honestly dont have a junk LS3 and LSA casting to cut apart here. I will see what I can do though, because science is knowledge, and knowledge is power.

Louis

PRAY HRD

iTrader: (119)

not to mention knowing is half the battle! Yo Louis!!