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110 bolt on kit w/ kompressor heads

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Old Apr 30, 2016 | 12:18 PM
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Default 110 bolt on kit w/ kompressor heads
Can the SE Kompressor heads be used with the SE Bolt-On 110 Kit 92500039? I'm asking because I already have those heads.
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Old May 1, 2016 | 10:26 PM
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Not a good choice. They are stock heads shaved with springs to accept cams. Sell them and get a set that will work better.
 
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Old May 2, 2016 | 06:14 AM
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Can they be reworked? If not, what's a good head choice for my set up? Currently have 2013 EGC- 103 being replaced through warranty w/ the 110 bolt on kit from the crank up. FuelMoto Headers w/ jackpot 4" mufflers, FM A/C, SE 585 cams
Time is critical due to build schedule.
Thanks.
 
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Old May 2, 2016 | 10:00 AM
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Originally Posted by keno
Can they be reworked? If not, what's a good head choice for my set up? Currently have 2013 EGC- 103 being replaced through warranty w/ the 110 bolt on kit from the crank up. FuelMoto Headers w/ jackpot 4" mufflers, FM A/C, SE 585 cams. Time is critical due to build schedule. Thanks.
Like Ed says, the Kompressor heads won't work. Those heads have been shaved about .050" and the smaller chamber volume plus the increased 4" bore will produce way more compression than is advisable unless you want to replace the SE585 cams with something with a later intake close around 45* to 48*. OEM heads can be re-worked successfully with your current configuration. Another option would be a set of 110 heads that could be re-worked to work well with your current configuration. So, to summarize, no go with the Kompressor heads, OEM heads would can be re-worked and a definite yes to a re-worked set of 110 heads.
 
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Old May 3, 2016 | 01:37 PM
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I only have 2 choices at this time due to funds and time. I currently have the Kompressors at 10.5/1, but dealer said if I didn't want to use them, they would swap them for New set of Stock 103 heads at no charge and swap the Kompressor valves and springs to the 103 heads to bring it to 10 to 1 but I'd have to buy the push rods to fit. If it's an either or, what would you do? No time nor funds to have head reworked.
Thank you for any help.
 
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Old May 3, 2016 | 02:41 PM
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Originally Posted by keno
I only have 2 choices at this time due to funds and time. I currently have the Kompressors at 10.5/1, but dealer said if I didn't want to use them, they would swap them for New set of Stock 103 heads at no charge and swap the Kompressor valves and springs to the 103 heads to bring it to 10 to 1 but I'd have to buy the push rods to fit. If it's an either or, what would you do? No time nor funds to have head reworked.Thank you for any help.
Really not two choices; you can't run the Kompressor heads; not an option.

The head exchange seems fair even if the Kompressor head does cost about $70 more than an OEM 103" cylinder head, so you are giving up about $140 on the exchange. However, I am not sure why the valves and springs need to be changed since the OEM springs in the OEM 103" head will accommodate the lift of the SE585 cams. The parts manual does recommend the +.030" pushrods with the SE585 cams; they run about $95 from an online discount dealer and cheaper than a set of HD adjustables.

I think I would go back with a counter offer which would be to install the OEM 103" heads without the valve/spring swap (there may be some reason why the swap is necessary but I would like to hear it if I were you), so there would be no labor cost for the valve/spring swap. Also considering the difference in cost between the OEM head and the Kompressor heads, the dealer should include pushrods at no additional charge.
 
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Old May 4, 2016 | 12:49 PM
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djl, they aren't charging me for the valve /spring swap. I don't know the reason for the swap either. I see the dealer tomorrow to give him a decision. So if it were you, you'd use the stock 103 un worked heads over the Kompressors right? What dyno numbers could I expect with this set up? 110 cylinders/pistons, 103 heads, se 585 cams, se a/c, FuelMoto's jackpot 2-1-2 headers w/ jackpot 4" mufflers?
I really appreciate your input!
 
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Old May 4, 2016 | 02:35 PM
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Originally Posted by keno
djl, they aren't charging me for the valve /spring swap. I don't know the reason for the swap either. I see the dealer tomorrow to give him a decision. So if it were you, you'd use the stock 103 un worked heads over the Kompressors right? What dyno numbers could I expect with this set up? 110 cylinders/pistons, 103 heads, se 585 cams, se a/c, FuelMoto's jackpot 2-1-2 headers w/ jackpot 4" mufflers? I really appreciate your input!
Yes but, of course, if the funds were available for head work, that would be advisable. I don't know what tuner you have or who will do the tuning but I am thinking 115TQ/100HP is possible. Could come up a HP or two short because the cams and the exhaust are more about making TQ than HP. The dealer may insist on the heavy duty springs as they are recommended by HD for the cam set but I don't know why when the 110 Stage III kit (92500035) uses OEM heads, spring and valves with the same cylinders and pistons included in the 92500039 kit. You should also have compression releases because CCP should be up around 200psi.
 
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Old May 4, 2016 | 04:44 PM
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Yeah, my current dyno #'s are 110.37 TQ / 94.72 HP.
Thank's for your help. Much appreciated for sure.
 
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Old May 9, 2016 | 08:49 AM
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I'm using the SEPST tuner. They let me swap the Kompressors for the SE Pro CNC ported factory heads with valve upgrade.
 
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