Stock heads upgrades for stock LS1 ??
09-11-2010, 02:54 AM
#1
Launching!
Thread Starter
Stock heads upgrades for stock LS1 ?? need to know differences between 243 ls6 , 243 ls2 , 799 5.3 , 317 6.0 ... please correct me if im wrong ^^^^^^^^^^
so far i heard this & that but I need solid info on which heads flow better mainly STOCK chambers cc & best of all, for all motor applications !!
Junkyards are fairy tales / gold mines u name it, lol
Input appreciated !!
so far i heard this & that but I need solid info on which heads flow better mainly STOCK chambers cc & best of all, for all motor applications !!
Junkyards are fairy tales / gold mines u name it, lol
Input appreciated !!
09-11-2010, 03:45 AM
#2
TECH Regular
iTrader: (1)
Join Date: Jan 2009
Location: Ohio
Posts: 479
Likes: 0
Received 0 Likes
on
0 Posts
They are all "basically" the same head.
With that said, for a NA setup you can cross out the 317s, they have 72cc chambers.
LS6>LS2 castings because they come with lighter valves.
We had a local guy gain about 30RWHP when he swapped to 243s
(VJ and aftermarket springs.)
He was even running an LS1 intake still, lol...
You're going to need the rest of the bolt-ons to get the most out of the swap though.
YRMV.
With that said, for a NA setup you can cross out the 317s, they have 72cc chambers.
LS6>LS2 castings because they come with lighter valves.
We had a local guy gain about 30RWHP when he swapped to 243s
(VJ and aftermarket springs.)
He was even running an LS1 intake still, lol...
You're going to need the rest of the bolt-ons to get the most out of the swap though.
YRMV.
09-12-2010, 04:48 AM
#3
Launching!
Thread Starter
They are all "basically" the same head.
With that said, for a NA setup you can cross out the 317s, they have 72cc chambers.
LS6>LS2 castings because they come with lighter valves.
We had a local guy gain about 30RWHP when he swapped to 243s
(VJ and aftermarket springs.)
He was even running an LS1 intake still, lol...
You're going to need the rest of the bolt-ons to get the most out of the swap though.
YRMV.
With that said, for a NA setup you can cross out the 317s, they have 72cc chambers.
LS6>LS2 castings because they come with lighter valves.
We had a local guy gain about 30RWHP when he swapped to 243s
(VJ and aftermarket springs.)
He was even running an LS1 intake still, lol...
You're going to need the rest of the bolt-ons to get the most out of the swap though.
YRMV.
& what car's came with 799 heads ??
thank you for the input
09-12-2010, 06:50 AM
#4
The only difference is if you get a set of 243s off of a 02-04 LS6 Corvette. It has lightweight valves, all the others have the heavy valves.
09-15-2010, 01:31 AM
#5
Launching!
Thread Starter
i thought those valves could be changed to better brands ??
09-15-2010, 09:23 PM
#7
Launching!
iTrader: (1)
Join Date: Dec 2008
Location: Camp Lejeune/Raleigh, NC
Posts: 253
Likes: 0
Received 0 Likes
on
0 Posts
The listing of heads from best to worst goes:
243
241
853
That's my understanding of it. Someone correct me if I'm wrong though, I don't claim to be an expert. I have 853s cuz I'm just in the bolt-on stage but I'm quickly considering a good ported set of 243s for a heads and cam swap I'm looking at next year. I was looking at TFS 215s but those damn things are out of this world in price right now.
243
241
853
That's my understanding of it. Someone correct me if I'm wrong though, I don't claim to be an expert. I have 853s cuz I'm just in the bolt-on stage but I'm quickly considering a good ported set of 243s for a heads and cam swap I'm looking at next year. I was looking at TFS 215s but those damn things are out of this world in price right now.
Trending Topics
09-20-2010, 08:16 PM
#8
On The Tree
iTrader: (1)
Join Date: Sep 2006
Location: Canada
Posts: 104
Likes: 0
Received 0 Likes
on
0 Posts
They are all "basically" the same head.
With that said, for a NA setup you can cross out the 317s, they have 72cc chambers.
LS6>LS2 castings because they come with lighter valves.
We had a local guy gain about 30RWHP when he swapped to 243s
(VJ and aftermarket springs.)
He was even running an LS1 intake still, lol...
You're going to need the rest of the bolt-ons to get the most out of the swap though.
YRMV.
With that said, for a NA setup you can cross out the 317s, they have 72cc chambers.
LS6>LS2 castings because they come with lighter valves.
We had a local guy gain about 30RWHP when he swapped to 243s
(VJ and aftermarket springs.)
He was even running an LS1 intake still, lol...
You're going to need the rest of the bolt-ons to get the most out of the swap though.
YRMV.
So I wonder how much there would be to gain with a ported set of ls6's on a stock setup with the usual bolt ons?
