My ls2 heads

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Feb 14, 2010 | 03:32 PM

edge04

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My ls2 heads

In hindsight looks like buying new heads might be the better choice but I did some port work on my current 243 cathedral heads 2.05in 1.55ex I will switch to 1.60 if I keep these, 64cc 28"

Intake
100 63.6
200 132.5
300 197.6
350 223.4
400 246.1
450 264.6
500 279.9
550 289.1
600 289.1
650 288.6
700 276.4

Ext
100 52.3
200 109.9
300 148.1
350 163.5
400 175.3
450 184.5
500 192.8
550 198.6
600 205.8
650 210.4
700 216.9

Not sure these flowed like stock, anyone know?

The motor has a maggy sc on it so do you guys think I would be better off with a set of l92 or something else?

Last edited by edge04; Feb 14, 2010 at 10:13 PM.

Feb 15, 2010 | 09:04 AM

edge04

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let me ask, would I really gain anything by putting in 1.6 ext valves? I need new ones anyway.

Feb 15, 2010 | 09:23 AM

outkast6991

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From: lancaster,pa

you did the porting yourself? post some pics and what was done to them

Feb 15, 2010 | 11:21 AM

edge04

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how do I post pics? whats the easiet way

Feb 15, 2010 | 11:25 AM

edge04

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Feb 15, 2010 | 07:28 PM

JonCR96Z

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From: Asheboro, NC

Quote:

Originally Posted by edge04

let me ask, would I really gain anything by putting in 1.6 ext valves? I need new ones anyway.

I dont think the stock seats will work for anything bigger than 1.57.

Here's some stock 243s that I just had flowed.

Feb 15, 2010 | 08:48 PM

edge04

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[QUOTE=JonCR96Z;12899067]I dont think the stock seats will work for anything bigger than 1.57.

But I can have them cut and just blend them in right?

Here's some stock 243s that I just had flowed.

thanks, I guess I did get some gains. but I am still considering new ones. Need to get some cam ideas has well.

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Feb 15, 2010 | 10:05 PM

novaflash2002

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From: Billings, Mt

you can get 1.60 in them. it is almost to the edge of the seat but it is do able. u might pick up a few more cfm if you open it up just a tad more at the top of the cathederal, where the injector sits.

Feb 17, 2010 | 11:36 AM

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edge04

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well I have my whole motor apart (spun a crank bearing) so I am looking at a new cam. As stated earlier, I have to buy new exh valves, springs and retainers for my current 243 heads so while I am at this stage, should I just bolt on a set of L92 heads, I can pick up sets cheap.