[Z06] L92 small bore heads
11-01-2014, 06:17 AM
#1
L92 small bore heads
Is anyone running GM's Small bore L92 cylinder heads on their LS6?
http://www.jegs.com/i/Chevrolet-Perf...ductId=2810494
A few posts were made a couple years ago... and any information on these heads may as well be in the unreachable bowels of the internet.
WHY?
I need some cylinder heads that flow better than 243's but still accept (possibly) Hollow stem/ sodium filled valves.
My alternative was to send my heads off to AI... BUT having my car in pieces for at least one month is kind of a downside.
PRC Stage 1 heads are also on the table. IF they are still available.
car has a 228R/110LSA cam in it. NO Boost and NO spray. NA (Soon to be ITB's) all the way.
http://www.jegs.com/i/Chevrolet-Perf...ductId=2810494
A few posts were made a couple years ago... and any information on these heads may as well be in the unreachable bowels of the internet.
WHY?
I need some cylinder heads that flow better than 243's but still accept (possibly) Hollow stem/ sodium filled valves.
My alternative was to send my heads off to AI... BUT having my car in pieces for at least one month is kind of a downside.
PRC Stage 1 heads are also on the table. IF they are still available.
car has a 228R/110LSA cam in it. NO Boost and NO spray. NA (Soon to be ITB's) all the way.
11-04-2014, 05:41 PM
#5
Instructor
Member Since: Mar 2014
Posts: 106
Likes: 0
Received 0 Likes
on
0 Posts
I have yet to put them on but I got those instead of LS6 castings at the advice of TSP and a local shop that tunes a ton of LS cars. I know a guy locally who ran the PRC LS6 castings on his C5 coupe and a similar cam tuned by the same shop and it made 464whp. So that's what I'm gunning for.
11-04-2014, 08:33 PM
#6
Safety Car
The rectangle ports respond differently to cams than the cathedral ports so that 228R might not match it as well as ported LS6 heads or some AFR cathedral ports. Something to keep in mind.