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Safe/Reliable 120R Upgrades Proof/Opinions

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  #21  
Old 10-28-2016, 06:23 AM
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Originally Posted by Rustrtal View Post
Did you use roller lifters or flat?
Woods rollers
 
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  #22  
Old 10-28-2016, 06:36 AM
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If the heads are to be reworked, a Wood 9F, and potential of 140 hp, and 140 torque is within reach.
We'd use a set of .650" beehives at that point.
Scott
 
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  #23  
Old 10-28-2016, 07:06 AM
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bullit proof 120R:
plug & weld F/W assy (or replace with S&S crank)
S&S lifters
bee hive springs
do these upgrades,& motor will take any performance up grades you want
 
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Old 10-31-2016, 02:02 PM
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I have got to quit reading these threads... makes me want more...
 
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Old 10-31-2016, 03:08 PM
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Originally Posted by SilverEagle50 View Post
I have got to quit reading these threads... makes me want more...
 
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Old 10-31-2016, 03:18 PM
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Originally Posted by SilverEagle50 View Post
I have got to quit reading these threads... makes me want more...
You'll be fine, after all the biggest you can easily go to is 143" - should be adequate.....
 
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Old 01-12-2018, 11:48 AM
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Originally Posted by BuckCanHD View Post
I'm currently running a 2 in 1 Thunderheader. It seems this exhaust could be holding my 120r back a bit. Would you guys agree? I do love the sound and compliments I get from this exhaust.
D & D good sound and best performance
 
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Old 01-12-2018, 01:41 PM
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Same everything besides cam. 6500 springs, S&S roller/ lifters and compression set to 10.8. HPI 55/58 w/ HPI air cleaner. Thunderheader X series 2-1.

This is the 662-2 Tman cam and not the Woods 9F cam mentioned but they are close enough that this can still give a good idea of the tq that can be gained.
 
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Old 01-13-2018, 11:48 AM
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If looking for a boat-load of torque coming off the bottom, a T-Man 660SM at 10.5 cr would be a home run.
Scorr
 
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  #30  
Old 01-17-2018, 06:37 AM
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Originally Posted by Rustrtal View Post
Did you use roller lifters or flat?

all HD`s have had roller lifters since before flatheads
 
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