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Old 03-08-2017, 03:43 PM   #1
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Default SPS LS3 Cylinder Heads

Is anyone running these heads? The SPS Haymaker heads look really nice and seem to be the ticket for guys wanting to run smaller ports with increased velocity. Never heard them mentioned on here before.
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Old 03-08-2017, 04:09 PM   #2
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Originally Posted by Rise of the Phoenix View Post
Is anyone running these heads? The SPS Haymaker heads look really nice and seem to be the ticket for guys wanting to run smaller ports with increased velocity. Never heard them mentioned on here before.
Never heard of them at all.

You got a link?

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Old 03-08-2017, 06:11 PM   #3
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Never heard of them either.
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Old 03-09-2017, 07:58 AM   #4
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I found out about them on FB. Here is the full info on these heads:


The LS community has been waiting for someone to come out with an LS3 style head that can flow serious air on the exhaust while keeping the intake port and valve small (well, smaller than stock anyways).

We are proud to announce the release of the SPS Haymakers! What's better than a stock size port with a smaller CSA, smaller valve, and still sees more air than a ported LS3? (This head was not based around flow numbers btw)

.750 deck, 4 and 6 bolt castings available
264cc/106cc
2.125/1.600 (2.165 and 2.200 valve options available)
11* valve angle
Chambers start at 74cc but can milled down to desired volume
Custom stainless valves
Bronze guides (powdered metal guides are available)
Custom billet rocker pedestals

Last edited by KCS; 03-09-2017 at 10:58 AM.
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Old 03-09-2017, 08:11 AM   #5
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Any flow numbers ?
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Old 03-09-2017, 03:24 PM   #6
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Quote:
Originally Posted by Rise of the Phoenix View Post
......The LS community has been waiting for someone to come out with an LS3 style head that can flow serious air on the exhaust while keeping the intake port and valve small (well, smaller than stock anyways)......

264cc/106cc
2.125/1.600 (2.165 and 2.200 valve options available)
......
Those don't look like "smaller than stock" intake ports and valves to me.....

Now.....these, on the other hand..... --->> https://www.mastmotorsports.com/coll...oducts/ls3-240

IJS.

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