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Old 02-25-2005, 12:12 AM   #26
mr402
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Join Date: Jan 2004
Location: Elmira, Oregon
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It takes a lot of torque to move these trucks. If you don't want to run premium fuel why not go for a smaller big block 454 or 402 etc. I run my 402 on regular gas and get about 12 mpg. Small block can produce lots of HP but low end torque is what you really need. Needless to say my vote is Big Block all the way!!
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Old 02-25-2005, 02:06 AM   #27
Rollie396
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Join Date: Sep 2004
Location: Lloydminster,AB. Canada
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If you don't worry about cash...502.Otherwise,well work down from there.
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'72 C-10 Proud owner of a million new and used pieces that used to be and will once again be(god willing) a testament to the term "they don't build em like that anymore.
'80 LWB 2wd beater
'67 GMC long fleet (cab donor)
'66 long step (parked till it's turn comes around)
'65 short step (parts truck that will donate it's bed and possibly frame to the '66)
'06 Grand Prix wife's car (she hardly lets me touch it)
my pics
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Old 02-25-2005, 02:51 AM   #28
Drogster
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Location: Juneau, Alaska
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What are you worried about gas mileage? It's a 30+ year old full-size truck, running a mean, nasty (in a good way), gas-guzzling 350 or 502 cubic inch engine.

It's gonna LOVE gas!!! Either way!

FIVE-OH-TWO baby!!!
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Nitrous is for those who don't know how to build.
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Old 02-25-2005, 10:16 AM   #29
Daubs
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Location: Eastern Nebraska
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I'm all for the Big Block. But you might have to upgrade your tranny and drivetrain to handle all that pedal mashing with your right foot!

Big Block POWER! Big Block POWER! Big Block POWER!
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'72 Chevy K-20 Crate 350, SM465, 4.10's
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Old 02-25-2005, 10:22 AM   #30
CPNE
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Join Date: Dec 1999
Location: NH
Posts: 6,664
Go in-line. 292's are the wave of the future
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Currently on or near the homestead:

67 Chevy SWB 2WD stepside 350/3 on tree (Pat's)
67 GMC SWB 2WD Fleet 402/auto (Brian's under construction)
67 Chevy 3/4 ton 2WD 402/auto (Business Hauler)
67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC)
68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC)
70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC)
71 Chevy SWB stepside (Crushed by tree - parts donor)
72 Chevy 3/4 ton 4WD (Parts donor)
72 Chevy 3/4 ton 4WD Suburban (Parts Donor)
72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC)
81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler)
82 Camaro Z/28 355/Super T-10 (Pat's toy)
93 Caprice 9C1 (Brian's Cop Car)
02 Toyota Camry (Reliable but a souless steel and plastic hulk)
2011 2SS RS Camaro M6 Factory Hurst Shifter

Maybe I need to sell some of this crap

Yet another Bozo with a sawz-all
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Old 02-25-2005, 10:42 AM   #31
JIMs70GMC
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Join Date: Jun 2001
Location: Chesapeake, Virginia
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Get a jegs catalog and look at all the world products big blocks, go alcohol! Of course it'll set you back 11,000.
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs
1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX
1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears
1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now.....
1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone.
1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed.

1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm
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