ls6 heads?
Thread Starter
Racer
Joined: May 2006
Posts: 410
Likes: 1
From: NJ
ls6 heads?
have a 99 coupe, lots of bolt ons, dont feel like listing them all, was wondering if I get LS6 stock heads how much hp will I pick up, is it worth it?..also whats the installation cost on something like that I know I cant do that myself I am not that good.
Burning Brakes
Joined: Aug 2006
Posts: 754
Likes: 2
From: dothan alabama
just bought a set myself iam told they are worth about 15 to 20 rwhp with all bolt ons, i was going to just bolt them on but stock but you have to spend a few$ to change springs for any decent cam so now iam having them sent off and ported just havent decided where maybe TEA
Dig
Joined: Jan 2006
Posts: 5,457
Likes: 1,119
From: Port Saint Lucie FLORIDA & HONDURAS
I installed LS6 heads a few months back.... what a difference !!
I still have the stock ls1 cam and very pleased with the power.
It is not hard to do. Read up on the install, get some local corvetteforum member to help !! Just remove all the little stuff befor someone goes over and helps you.
I still have the stock ls1 cam and very pleased with the power.
It is not hard to do. Read up on the install, get some local corvetteforum member to help !! Just remove all the little stuff befor someone goes over and helps you.
Racer
Joined: Jul 2006
Posts: 285
Likes: 1
From: Placentia CA
I gave $500 for mine right here on the forum. Had about 30 K on them and came with a set of Manley springs and titanium retainers. All I did was a straight up old fashion 3 angle valve job and new seals. Can’t give you real numbers but if the FIPK K&N was worth 8 to 10 HP then I say the 243’s are worth 15 to 20 HP. Really nice SOTP difference from the 241’s I pulled off.
Just remember that if you end up with 02-04 243 heads they will have the lighter hollow/sodium valves and the stems will be about .025 longer than regular LS1 valves. Not sure about valve length on LS2 243 heads.
Just remember that if you end up with 02-04 243 heads they will have the lighter hollow/sodium valves and the stems will be about .025 longer than regular LS1 valves. Not sure about valve length on LS2 243 heads.
