Low Lash solid roller ls3 build
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Joined: Jan 2019
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Trick is to add more compression & rpm for the cheaper head but don't tell it. 
Don't forget Liberty (maker of 1 of the guys known, 4 got the name: spm... ) 11degree as cast Ls3 heads are..400ea. FED / port work $900-1200
Too many options for a budget.....
Don't forget Liberty (maker of 1 of the guys known, 4 got the name: spm... ) 11degree as cast Ls3 heads are..400ea. FED / port work $900-1200
Too many options for a budget.....
Last edited by Smokey B; Apr 11, 2019 at 08:45 PM.
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Launching!
Joined: Jan 2012
Posts: 269
Likes: 3
From: Attica, IN
My preference is for solid valves, especially if you plan to run higher spring pressures. With solid lifters you can get away with a lot.
I would run titanium intake and stainless exhaust. Maybe even inconel
I would run titanium intake and stainless exhaust. Maybe even inconel
Thread Starter
Launching!
Joined: Jan 2012
Posts: 269
Likes: 3
From: Attica, IN
Seen the titanium option also. Didn’t know if was really worth the extra cost over the others or not and always heard stuff about running them on a street driven vehicle. Good to know.
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Hollows and good springs... A heavier valve needs more spring press to control. No matter hyd or solid roller. ask a ferrera rep or Pac rep....as said @ 730 lift with 7400 - 7500 peak same FED ported factory ls3 heads. Ask Steven or a rep mentioned.
Ti valves run $1200 new...... Spec'ed a 6.200 long hollow stem for a Ls raised runner design to bypass $1300 Ti valves ($4k heads with valves & springs). Hmmmm F10 heads.
Ti valves run $1200 new...... Spec'ed a 6.200 long hollow stem for a Ls raised runner design to bypass $1300 Ti valves ($4k heads with valves & springs). Hmmmm F10 heads.
Last edited by Smokey B; Apr 12, 2019 at 01:17 AM.
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I'll leave u with this i could have got the 800+ looked for with factory ls3 heads and not make one. wouldn't do it no other way even if i had to do it all over again. What was learned isn't on any forum all laid out in a thread. I know of guys spending well over 5k in heads and intake yet not out perform a similar cheaper set up. Fact.
When guys start understanding CSA for a given rpm and engine size (theres a formula on wallace calculator, my ls7 heads match the csa for the engine size and rpm 100%. How many can say this with cnc or ported heads?) They maybe on to something. Guy's building basically a race prepared street engine with Generic numbers like it has 258cc or this head works but don't know why besides it has a better valve angle. Funny. No matter what heads are picked, to maximize them they need to match rpm & cid with the head CSA. Some pay twice with a cnc head then another fee for matching the CSA. Funny.
When guys start understanding CSA for a given rpm and engine size (theres a formula on wallace calculator, my ls7 heads match the csa for the engine size and rpm 100%. How many can say this with cnc or ported heads?) They maybe on to something. Guy's building basically a race prepared street engine with Generic numbers like it has 258cc or this head works but don't know why besides it has a better valve angle. Funny. No matter what heads are picked, to maximize them they need to match rpm & cid with the head CSA. Some pay twice with a cnc head then another fee for matching the CSA. Funny.
Last edited by Smokey B; Apr 12, 2019 at 02:24 AM.
Thread Starter
Launching!
Joined: Jan 2012
Posts: 269
Likes: 3
From: Attica, IN
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Joined: Jan 2019
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Comp cams pro magnum adjustable steel rockers 1.8 or 1.7 ratio, Pro Form valve covers around $800 total for both.. Pac 1238x springs / manley 2.165 hollow stem valves 1.60 ss exh. valves....reference with the same heads and porter used.
Last edited by Smokey B; Apr 14, 2019 at 05:53 PM.
Thread Starter
Launching!
Joined: Jan 2012
Posts: 269
Likes: 3
From: Attica, IN
Ya I’ll be running either and adjustable set if jesels or crowers. Didn’t want to try a. Run a factory rocker on a LLSR setup. I know it can be done I just didn’t want to try it lol.
Thread Starter
Launching!
Joined: Jan 2012
Posts: 269
Likes: 3
From: Attica, IN
Comp cams pro magnum adjustable steel rockers 1.8 or 1.7 ratio, Pro Form valve covers around $800 total for both.. Pac 1238x springs / manley 2.165 hollow stem valves 1.60 ss exh. valves....reference with the same heads and porter used.