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02-20-2007, 06:01 PM
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#1 |
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Registered User
Join Date: Dec 2006
Location: medford oregon
Posts: 152
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NeeD HP Ratings
 i have a 71 chevy 1/2 ton 350 4 barral any one kno the horse power and tourqe and or tell me where to find this informaition Thanx  
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02-20-2007, 06:09 PM
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#2 |
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Registered User
Join Date: Mar 2006
Location: USA
Posts: 21,020
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Re: NeeD HP Ratings
I have a book that lists all that stuff.It varies though depending on the bore,stoke,ect.The most for a 4bl 350 was 275 if I remember right
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02-20-2007, 09:49 PM
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#3 |
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Aluminum slot wheels rule...
Join Date: Jan 2006
Location: Maine
Posts: 6,212
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Re: NeeD HP Ratings
I think the pre-71 truck 350's with a 4bbl. had 255hp and 350 lb. ft of torque.
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02-21-2007, 02:59 AM
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#4 |
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Registered User
Join Date: Aug 2006
Location: Bakersfield,CA
Posts: 7,893
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Re: NeeD HP Ratings
mines a 72 350 4brl and i was told its 175hp and like 280tq i think
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-steven Alte Seele S.S. "Allison" '72 C/10 LWB 350SB/TH350 - DD PITBULL IS NOT A CRIME |
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02-21-2007, 06:53 AM
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#5 |
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Senior Member
 
Join Date: Dec 2002
Location: Portland, Oregon
Posts: 901
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Re: NeeD HP Ratings
Chev Truck 1971 Chassis Service Manual states :- 350 V8 ; 250 HP @ 4600 RPM; Torque - 350 @ 3000 RPM
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'71 GMC;fleetside;PB/PS/AC/CC/402 Eng./Custom Paint/110,000act miles/3 fuel tanks(52gal). |
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02-22-2007, 09:27 PM
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#6 | |
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Aluminum slot wheels rule...
Join Date: Jan 2006
Location: Maine
Posts: 6,212
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Re: NeeD HP Ratings
Quote:
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02-22-2007, 10:16 PM
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#7 |
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In Memoriam...
Join Date: Nov 2006
Location: Wallburg, NC
Posts: 1,216
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Re: NeeD HP Ratings
Keep in mind that back in the day, the HP and TQ ratings were "Gross", as opposed to "Net" as they are today. Subtract roughly 25-30% from the "Gross" and it will translate to modern "Net" numbers...
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'68 C10 SWB 307ci 2BBL FarmTruk Pics Here "You know, doing what is right is easy. The problem is knowing what is right." |
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02-25-2007, 06:11 AM
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#8 |
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Senior Member
Join Date: Dec 2002
Location: Portland, Oregon
Posts: 901
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Re: NeeD HP Ratings
More spec's---- 350 V/8- 145 HP (Net) @ 3800 RPM
Torque (Net) 250 @ 2200 RPM Taxable HP - 51.2
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'71 GMC;fleetside;PB/PS/AC/CC/402 Eng./Custom Paint/110,000act miles/3 fuel tanks(52gal). |
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02-27-2007, 03:40 AM
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#9 |
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Registered User
Join Date: Aug 2006
Location: Bakersfield,CA
Posts: 7,893
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Re: NeeD HP Ratings
acording to the gm resto packet its 175hp @ 4000 rpm and 290tq @ 2400rpm both net ratings
__________________
-steven Alte Seele S.S. "Allison" '72 C/10 LWB 350SB/TH350 - DD PITBULL IS NOT A CRIME |
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02-27-2007, 05:56 PM
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#10 |
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Registered User
Join Date: Dec 2006
Location: medford oregon
Posts: 152
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Re: NeeD HP Ratings
yeah so um.. i got alot of diffrent ratings which one should i go with?
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02-27-2007, 05:58 PM
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#11 |
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Registered User
Join Date: Mar 2006
Location: USA
Posts: 21,020
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Re: NeeD HP Ratings
Ya need to determine bore and stoke first
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02-27-2007, 06:25 PM
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#12 | |
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Aluminum slot wheels rule...
Join Date: Jan 2006
Location: Maine
Posts: 6,212
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Re: NeeD HP Ratings
Quote:
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02-27-2007, 06:43 PM
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#13 |
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Senior Member
Join Date: Dec 2002
Location: Portland, Oregon
Posts: 901
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Re: NeeD HP Ratings
I would go with the specs as listed in the Chev shop manual--- as I listed previously.
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'71 GMC;fleetside;PB/PS/AC/CC/402 Eng./Custom Paint/110,000act miles/3 fuel tanks(52gal). |
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