ls3 heads on to lsx454
10-16-2009, 06:50 PM
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ls3 heads on to lsx454 hi i was just woundering if i was to get an lsx 454 block and rotating asembley would my LS3 A6 heads,manafold,sump ect work or would i be better of with a compleat running 454 engine
??
??
10-20-2009, 01:12 AM
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The LSX will take any type of LS based head, just have to get your pistons matched to your valve degree choice.
A LS3/L92 top-end would work just fine. You may want to port the heads to keep up with your large ci though.
A LS3/L92 top-end would work just fine. You may want to port the heads to keep up with your large ci though.
10-20-2009, 02:19 AM
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I would have them ported and then send them to LME (I believe that is the company that has been doing this) to convert them to a 6 bolt head in order to hold the power since some people have had some issues lifting the heads on regular 4 bolt L92's in boosted applications.
10-20-2009, 02:54 AM
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I would have them ported and then send them to LME (I believe that is the company that has been doing this) to convert them to a 6 bolt head in order to hold the power since some people have had some issues lifting the heads on regular 4 bolt L92's in boosted applications.
10-20-2009, 04:25 AM
#5
Those Mast Motorsport LS3 (ETP) 6 bolt big bore heads would work very well. They're 12 degree though.
http://www.mastmotorsports.com/news.php?id=14
http://www.mastmotorsports.com/news.php?id=14
10-20-2009, 01:53 PM
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Those Mast Motorsport LS3 (ETP) 6 bolt big bore heads would work very well. They're 12 degree though.
http://www.mastmotorsports.com/news.php?id=14
http://www.mastmotorsports.com/news.php?id=14
I totally forgot about those. They are a grip but flow very well.
10-20-2009, 05:56 PM
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Those Mast Motorsport LS3 (ETP) 6 bolt big bore heads would work very well. They're 12 degree though.
http://www.mastmotorsports.com/news.php?id=14
http://www.mastmotorsports.com/news.php?id=14
is that the angle of the valve seat ??
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10-21-2009, 04:12 PM
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if the valve is vertical on the pistons surface it`s 0 degrees (the best as the intake port or neck or throat what ever they call it will be vertical also and best for sucking the air charge)
old sbc mostly are 23 deg valve angle .... the 18 degree heads with larger valves and bigger intake ports produced major airflow and power and there are other race heads with less that 18 deg
the ls1 came stock with 15 deg heads
tfs are 13.5 deg
etp are 11 deg valve angel (corrected thanks stage7)
this is how I understood it .... it might help a bit
old sbc mostly are 23 deg valve angle .... the 18 degree heads with larger valves and bigger intake ports produced major airflow and power and there are other race heads with less that 18 deg
the ls1 came stock with 15 deg heads
tfs are 13.5 deg
etp are 11 deg valve angel (corrected thanks stage7)
this is how I understood it .... it might help a bit
Last edited by Bader-X; 10-21-2009 at 05:15 PM.
10-21-2009, 04:49 PM
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if the valve is vertical on the pistons surface it`s 0 degrees (the best as the intake port or neck or throttle what ever they call it will be vertical also and best for sucking the air charge)
old sbc mostly are 23 deg valve angle .... the 18 degree heads with larger valves and bigger intake ports produced major airflow and power and there are other race heads with less that 18 deg
the ls1 came stock with 15 deg heads
tfs are 13.5 deg
etp are 12 deg valve angel
this is how I understood it .... it might help a bit
old sbc mostly are 23 deg valve angle .... the 18 degree heads with larger valves and bigger intake ports produced major airflow and power and there are other race heads with less that 18 deg
the ls1 came stock with 15 deg heads
tfs are 13.5 deg
etp are 12 deg valve angel
this is how I understood it .... it might help a bit
The Ls7 casting is 12 deg
10-21-2009, 05:34 PM
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if the valve is vertical on the pistons surface it`s 0 degrees (the best as the intake port or neck or throat what ever they call it will be vertical also and best for sucking the air charge)
old sbc mostly are 23 deg valve angle .... the 18 degree heads with larger valves and bigger intake ports produced major airflow and power and there are other race heads with less that 18 deg
the ls1 came stock with 15 deg heads
tfs are 13.5 deg
etp are 11 deg valve angel (corrected thanks stage7)
this is how I understood it .... it might help a bit
old sbc mostly are 23 deg valve angle .... the 18 degree heads with larger valves and bigger intake ports produced major airflow and power and there are other race heads with less that 18 deg
the ls1 came stock with 15 deg heads
tfs are 13.5 deg
etp are 11 deg valve angel (corrected thanks stage7)
this is how I understood it .... it might help a bit
BUT when you say valve is vertical to the piston at 0 deg for BEST AIR FLOW
do you mean the HEAD of the valve would be siting flat on top of the piston with the stem vertical to the piston top or laying down across the piston with the stem horizontal to the piston
what deg are stock LS3 heads ?? 15 deg
if you changed the heads to something with a differant angle etp say would need differant rocker gear and push rods ??
Last edited by red 454; 10-21-2009 at 05:43 PM.
10-22-2009, 07:02 AM
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the first .... the valve face surface are facing the top of the piston (no angel)
there are a kit sold seperatly to use the etp heads for their valve angel ... check etp heads on texas-speed I think it`s listed there
I assume he means very expensive by grip ... maybe as it costs money that needs to be hold together by a grip not by a few fingers
there are a kit sold seperatly to use the etp heads for their valve angel ... check etp heads on texas-speed I think it`s listed there
I assume he means very expensive by grip ... maybe as it costs money that needs to be hold together by a grip not by a few fingers
10-22-2009, 06:32 PM
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the first .... the valve face surface are facing the top of the piston (no angel)
there are a kit sold seperatly to use the etp heads for their valve angel ... check etp heads on texas-speed I think it`s listed there
I assume he means very expensive by grip ... maybe as it costs money that needs to be hold together by a grip not by a few fingers
there are a kit sold seperatly to use the etp heads for their valve angel ... check etp heads on texas-speed I think it`s listed there
I assume he means very expensive by grip ... maybe as it costs money that needs to be hold together by a grip not by a few fingers
cheers
10-23-2009, 12:56 AM
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only to get it running while saving up for the PD
Last edited by red 454; 10-23-2009 at 01:53 AM.
10-23-2009, 01:57 AM
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10-27-2009, 11:58 PM
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