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06-11-2009, 01:02 PM
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#1 |
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Registered User
Join Date: Apr 2004
Location: Clanton, AL
Posts: 1,253
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Re: 76cc sbc head
What's the estimated octane rating on the 406 w/ 76cc AFR's? Can you still run 87 octane?
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85' CUCV M1009!!! The newest addition! 6.2diesel, Th400, NP208, & only 36k miles! 70' C-10 LWB Fleetside - Looking good these days!  05' Dodge Neon 88' Winner Escape Sport 1750 - 4.3v6 94' Seadoo SP 84' Honda TRX200, bare nekkid. Just a frame & tires. Always looking for another project or any good deal! 
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06-11-2009, 03:21 PM
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#2 | |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,149
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Re: 76cc sbc head
Quote:
Flat top? Maybe. The flat top would be do-able w/some 91 octane.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. Last edited by SCOTI; 06-11-2009 at 03:22 PM. |
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06-11-2009, 03:46 PM
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#3 | |
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On a budget like Fred Sanford
Join Date: Oct 2005
Location: Topeka, KS
Posts: 2,031
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Re: 76cc sbc head
Quote:
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'85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD |
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06-11-2009, 06:40 PM
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#4 |
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Senior Member
 
Join Date: Jan 2008
Location: St.Petersburg,Fl
Posts: 1,273
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Re: 76cc sbc head
I run a flat top 406 w/5.7 rods and 70cc edelbrock Victor Jr. heads, thermal coated piston and combustion chambers,and run 93 octane pump gas.No problems at all, I believe the coatings contribute to this working. My .02
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06-11-2009, 08:50 PM
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#5 | |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,149
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Re: 76cc sbc head
Quote:
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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