All Pro lsw 12-2 heads. Please help.
#1
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Anyone on here familiar with the All Pro LSW 12-2 heads ls7 ports? I am being told they only use a specific intake manifold only all pro sells. Wondering if this is true and how far off would these heads be from a regular ls7 port? I cannot see any different as far as bolt pattern only the location of the port being raised on the heads.
I have been looking for a few weeks now on info on it. Got a price on the All Pro intake which made my head spin for an as cast manifold and now im looking into other options. Here is the questions i have.
1) what is changed about the port location other then height?
2)Can a holly hi ram be modified to fit? Or another intake for that matter.
3)Is $1700 really the price of the All Pro intake as cast not ported? This was the price i was given. Was over 2 grand ported.
I have been looking for a few weeks now on info on it. Got a price on the All Pro intake which made my head spin for an as cast manifold and now im looking into other options. Here is the questions i have.
1) what is changed about the port location other then height?
2)Can a holly hi ram be modified to fit? Or another intake for that matter.
3)Is $1700 really the price of the All Pro intake as cast not ported? This was the price i was given. Was over 2 grand ported.
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You don't trust a guy who loves head's more than anyone you will ever meet In life..... On any V8 engine. Ford, Dodge, Nissan 5.6, big & small block etc.
Here you go :http://www.erlperformance.com/all-pro-heads
Here you go :http://www.erlperformance.com/all-pro-heads
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Yes the port design is like that of the C5r or the Mast PXR inline heads.
Research from 2012:
Sent from Yahoo Mail on Android
From:"richard@proheads.com" <richard@proheads.com>
Date:Tue, Aug 7, 2012 at 7:16 PM
Subject:RE: TO!!!! Richard.... Info on LSW12-2 310 cc port
Hello Andre,
Thank you for your inquiry. Our 310cc All Pro cylinder head package comes with 2.200"/1.600" valve sizes and a 67cc chamber. I do not recommend upsizing the valve sizesd as the fit of a larger valves in the 67cc chamber will produce irregular match ups with the contours in the chamber. The valve seat angles are a conventional 45º and there is and option for copper alloy seats if you need faster heat dissipation. The heads can be flat or angle milled to get the chambers to your desired 58cc.
I've attached flow spec sheet of our 310 head. We can supply all the major items for your top end as All Pro has available cast aluminum valve covers and a cast two piece carb style intake. If this is to your liking I can put together an itemized quote for you. Please let me know if you have any questions. Thank you again for your inquiry.
Best regards,
Richard Reyman
West Coast Cylinder Heads
18405 Hart St.
Reseda, CA 91335
www.proheads.com
(818) 705-5454
dum
Can't seem to post the flow chart from my Email account.
Research from 2012:
Sent from Yahoo Mail on Android
From:"richard@proheads.com" <richard@proheads.com>
Date:Tue, Aug 7, 2012 at 7:16 PM
Subject:RE: TO!!!! Richard.... Info on LSW12-2 310 cc port
Hello Andre,
Thank you for your inquiry. Our 310cc All Pro cylinder head package comes with 2.200"/1.600" valve sizes and a 67cc chamber. I do not recommend upsizing the valve sizesd as the fit of a larger valves in the 67cc chamber will produce irregular match ups with the contours in the chamber. The valve seat angles are a conventional 45º and there is and option for copper alloy seats if you need faster heat dissipation. The heads can be flat or angle milled to get the chambers to your desired 58cc.
I've attached flow spec sheet of our 310 head. We can supply all the major items for your top end as All Pro has available cast aluminum valve covers and a cast two piece carb style intake. If this is to your liking I can put together an itemized quote for you. Please let me know if you have any questions. Thank you again for your inquiry.
Best regards,
Richard Reyman
West Coast Cylinder Heads
18405 Hart St.
Reseda, CA 91335
www.proheads.com
(818) 705-5454
dum
Can't seem to post the flow chart from my Email account.
Last edited by lil john; 03-22-2015 at 11:14 AM.
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BTW: what makes you want this head, this is for a Solid roller set up with a Minimum of .750 lift. This is for a all out Drag application. The Mast PXR inline head would make 4 a better street head smaller ports = better street manners or better off the line Tq because you'll only be able 2 use the 2 piece carb style intake from Mast or All Pro.
How big is the build that these heads are for: if under 427ci you'll be turning some high RPM & High lift to get your $ worth with 12+ compression.
How big is the build that these heads are for: if under 427ci you'll be turning some high RPM & High lift to get your $ worth with 12+ compression.
Last edited by lil john; 03-22-2015 at 10:26 AM.
#10
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This is what All Pro website shows for intake ports on the LSW -2 heads.
http://www.proheads.com/products.html
![](http://www.proheads.com/images/ap-2c.jpg)
This is what jegs shows for c5r pattern
http://www.jegs.com/i/Chevrolet+Perf...34393/10002/-1
http://www.proheads.com/products.html
![](http://www.proheads.com/images/ap-2c.jpg)
This is what jegs shows for c5r pattern
http://www.jegs.com/i/Chevrolet+Perf...34393/10002/-1
![](https://www.jegs.com/images/photos/800/809/809-25534393_1.jpg)
Last edited by Violence.z06; 03-22-2015 at 10:32 AM.
#11
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BTW: what makes you want this head, this is for a Solid roller set up with a Minimum of .750 lift. This is for a all out Drag application. The Mast PXR inline head would make 4 a better street head smaller ports = better street manners or better off the line Tq because you'll only be able 2 use the 2 piece carb style intake from Mast or All Pro.
How big is the build that these heads are for: if under 427ci you'll be turning some high RPM & High lift to get your $ worth with 12+ compression.
How big is the build that these heads are for: if under 427ci you'll be turning some high RPM & High lift to get your $ worth with 12+ compression.
350 cubic inch drag engine. 60mm cam, 13.5:1 compression. belt drive, front drive distributor, dry sump. aluminum rods, 42cc chambers. target rpm no higher then 9500rpm
#14
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Kinda where im going but im 4.185 bore and 3.185 stroke. I have the heads on order already just waiting for them to show up at my Cylinder head guys shop. Once they get there he already has his game plan on. Just need to figure out the manifold situation as i could not find anything anywhere that said it needed a custom manifold when i ordered them. Not a big deal just more a pain
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#17
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This is why im wondering where the intake ports sit. If i can modify an existing intake to make it fit thats do-able. No way im paying $1700 for a as cast unported single plane cast intake. Thats insane. Worst case i will go sheet metal custom before i did that.
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Good lookin out KCS.
Here's a intake modification like your wanting:
http://www.lsxtv.com/tech-stories/en...-and-manifold/
The intake runs around 4 to 5 hundred, Guys @ Wilson said that this intake was over $1200 once it was done.
Here's a intake modification like your wanting:
http://www.lsxtv.com/tech-stories/en...-and-manifold/
The intake runs around 4 to 5 hundred, Guys @ Wilson said that this intake was over $1200 once it was done.