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06-30-2016, 07:14 PM
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#1 |
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Registered User
Join Date: Nov 2015
Location: Las Vegas Nevada
Posts: 84
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261 head on a 235
I have a 235 built in 62 with a 261 head from 55 to 57. Compression test 150 in all six. Standard one barrel Rochester with stock intake and exhaust. Dragonfire electronic ignition, plugs gapped at .050.
What kind or horsepower would you guess in a 47 Thriftmaster? |
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06-30-2016, 09:22 PM
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#2 |
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Hollister Road Co.
Join Date: Apr 2005
Location: Houston
Posts: 6,134
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Re: 261 head on a 235
130 140
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06-30-2016, 09:31 PM
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#3 |
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Registered User
Join Date: Nov 2015
Location: Las Vegas Nevada
Posts: 84
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Re: 261 head on a 235
Thanx. I figured somewhere around there. Runs better than expected.
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06-30-2016, 11:45 PM
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#4 |
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Registered User
Join Date: Nov 2012
Location: Winder, GA
Posts: 274
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Re: 261 head on a 235
Keep your eye out for an 848 head if you want to get a bump in compression, as the 261 head is a pretty low compression head.
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07-01-2016, 07:47 PM
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#5 |
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Registered User
 
Join Date: Jul 2007
Location: Toppenish, WA
Posts: 15,651
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Re: 261 head on a 235
150 lbs compression straight across on a 235 sounds pretty dog gone good to me.
__________________
Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around. |
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07-01-2016, 10:08 PM
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#6 |
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Registered User
Join Date: Nov 2015
Location: Las Vegas Nevada
Posts: 84
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Re: 261 head on a 235
I thought so too.
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