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10-15-2008, 04:45 PM
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#1 |
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Registered User
Join Date: Jul 2007
Location: Covina Calif
Posts: 172
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Im bummed
Im bummed i just decoded the engine block numbers on my 70C10 and i thought i had a 350. Well it isnt the code is 355909 witch is a 1975-1983 305. Now i need to get a 350 to replace that 305 that just made my day.
http://67-72chevytrucks.com/vboard/a....php?f=50&a=17
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"Your trucks fast! You must have been going 120 when I passed you." "Owning A 10 Sec Import Is Like Coming Out Of The Closet, In The End Ur Still Gay" If for some reason i loose to a import...At least i can go home knowing the vehicle i drive drops girls panties... Last edited by Longhorn Man; 10-15-2008 at 06:44 PM. |
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10-15-2008, 05:45 PM
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#2 |
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Registered User
Join Date: Sep 2008
Location: CASA GRANDE AZ
Posts: 4,276
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Re: Im bummed
Hey man if you were happy with it before just leave it alone especially if it already runs good not much of an upgrade unless you just want to go with a rebuilt
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10-15-2008, 05:51 PM
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#3 |
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Green club
Join Date: May 2002
Location: Central CA
Posts: 1,059
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Re: Im bummed
I feel your pain, I thought mine may have been a 350 as well, but turned out to be a 305.
On the positive side, it's very durable, reliable and does not smoke at all just down on power a little bit compared to the average Camry  . So, if you just want a 350, consider sticking with the little 305 until you can afford an engine that you really would like.
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71 short/fleet ECE 4/6 drop, LQ4/700r4/3.42 gears 70 SS396 Chevelle 427/200-4R/3.73posi 61 Lincoln Continental, black on black Son you are going to drive me to drinkin if you don't stop drivin that hot rod lincoln |
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10-15-2008, 09:17 PM
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#4 | |
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20' Daredevil (Ret)
 
Join Date: May 2003
Location: Jefferson State
Posts: 13,731
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Re: Im bummed
Quote:
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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10-15-2008, 05:55 PM
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#5 |
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MOVE OVER
Join Date: Jun 2002
Location: Warrensburg, MO
Posts: 5,470
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Re: Im bummed
could be worse,, mine turned out to be a 307...
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No matter where you are..... There you are... Buckaroo Banzi |
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10-15-2008, 07:28 PM
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#6 | |
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Registered User
Join Date: Oct 2001
Location: Grapevine, Tx.
Posts: 2,142
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Re: Im bummed
Quote:
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John Hutchison Grapevine,Texas 68 1/2 t swb 68 Mustang 69 Jaguar 71 1/2 t swb 88 Supra CompTs6m 93 Escort GT 2005 Corolla XRS |
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10-15-2008, 08:46 PM
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#7 | ||
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Registered User
Join Date: Jun 2008
Location: South Florida
Posts: 11,375
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Re: Im bummed
Quote:
Quote:
The same exact thing that happenned to me!!!! I definetly know how dissapointed I was with a 307 and a 3speed manual truck!!!!! MAIN REASON why I just spent a ton of $$$$$ on the bucket...
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Get your facts first, and then you can distort them as much as you please!!!!!. Sylvester's build thread >>>http://67-72chevytrucks.com/vboard/s...ht=big+rebuild |
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10-15-2008, 09:18 PM
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#8 |
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Registered User
Join Date: Dec 2007
Location: Nanaimo B.C.
Posts: 604
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Re: Im bummed
look on the bright side now you can go for a big block
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I was hooked on these trucks since 1982 when I drove my budys fathers 1968 Custum GMC 396 automatic dana 60 rear with a power lock diff what a ride more fun then we will we can ever tell!! |
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10-16-2008, 07:13 AM
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#9 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: Im bummed
Don`t worry about it.It`s just a bunch of numbers.What`s the problem?Were you trying to figure why it wasn`t running better and discovered it was a 305?Or,was everything fine until you ran the number?I`d be happy with a 194 if it got my truck down the road well enough to not know what was under there.You stand a better chance at optimum fuel economy with the smaller displacement.There`s nothing wrong with the 307 either.Prolly one of the most under-rated small blocks out there.Many got pulled and tossed just to have a 350 with half a handful more horsepower.Many of the ones that stayed in are still powering these trucks.GM never based a performance motor on it because back them it was all about going bigger and the 307 was the economy V8.The 305 never would have seen an H.O. application if it wasn`t in use during the Downsize era.It`s certainly no better motor than a 307.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ Last edited by special-K; 10-16-2008 at 11:22 AM. |
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10-16-2008, 07:50 AM
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#10 |
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Registered User
Join Date: Mar 2005
Location: 10-Uh-See
Posts: 5,609
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Re: Im bummed
I would much rather have a 307 than a 305. The 307 has a better bore to stroke ratio than the 305. The 307 is basically a 283 block with a 327 crank. You can safely bore the blocks .100 over and have a 323 ci engine.
The weak link in the 305 is the very undersized bore(3.785). It's wht helps it in the gas mileage dept. though. 70chevyc10, if your just driving it, there's nothing bad about a 305. If you're wanting more hp, well, I understand your disappointment.
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10-16-2008, 08:43 AM
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#11 |
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Hittin E-Z Street on Mud Tires
Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: Im bummed
I actually wish I had left the 250 I-6 in my truck...
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God  1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
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10-16-2008, 09:47 AM
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#12 | |
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State of Confusion!
Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 47,262
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Re: Im bummed
Quote:
I think about that alot too. My parts truck, I was told was a 350, but it turned out to be a 305. It ran real strong until the rod bearing gave out, so as other have said if it runs good and you were OK with it until you ran the numbers, then I would run withit until you get the funds to do the engine the way you want it to, including buying a new one if that is what you want.
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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
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10-17-2008, 10:16 AM
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#13 | |
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Registered User
Join Date: Mar 2005
Location: 10-Uh-See
Posts: 5,609
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Re: Im bummed
Quote:
 I would actually like to buy a beater truck with a 250 in it just to have.
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10-16-2008, 11:14 AM
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#14 |
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Skinned knuckles
Join Date: Oct 2006
Location: Longview, Washington
Posts: 1,126
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Re: Im bummed
The 60 Chevy truck I bought when I was 18 was supposed to have a 327 in it, but I later found out it was a 262 out of a Monza.. It didn't lose any power once I found out, but it didn't feel as "cool" either...
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'72 C-10 longbox soon to be short step! '72 Chevelle (sold in January)  '07 Sebring '01 Ranger (I've gotta long commute..) If you try to fail, and succeed, which have you done? My build thread - http://67-72chevytrucks.com/vboard/s...d.php?t=276904 |
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10-18-2008, 12:06 AM
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#15 | |
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Local Detroit diesel nut!
Join Date: Apr 2008
Location: Burlington, WI
Posts: 175
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Re: Im bummed
Quote:
 ). Guess the 267 just didn't make enough power to blow up either!!! Truck actually ran super, just a little low (alot low) on power!!!My opinion on the 305, if it runs and drives and get's the job done, leave it in there and tell everyone it is a 350. Nobody will be able to tell while looking at it!!! The 305's were good motors, just they were overshadowed by the 350!!! Good luck! Mike
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Nothing cool anymore, I am old and boring.... |
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10-18-2008, 05:42 AM
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#16 |
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Registered User
Join Date: Jun 2008
Location: South Florida
Posts: 11,375
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Re: Im bummed
As I said before I was dissapointed with my 307 it had no balls and it felt like a four banger, sold the complete powertrain back to the guy I bought the truck from he is using it in an older impala or something he said then I buil me a small block 400 with all the bells and whistles and the thing feels like getting hit with a 2x4 accross your back when you step on it.....I could not be happier with the motor so far, I am having a leak issue with my tranny but that is a complete different situation...
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Get your facts first, and then you can distort them as much as you please!!!!!. Sylvester's build thread >>>http://67-72chevytrucks.com/vboard/s...ht=big+rebuild Last edited by big_al_71; 10-18-2008 at 05:44 AM. |
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10-17-2008, 01:30 PM
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#17 |
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Special Order
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: Im bummed
Me too.If anything,I`d add o/d.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ Last edited by special-K; 10-17-2008 at 01:33 PM. |
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10-17-2008, 01:42 PM
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#18 |
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Certified BFH Operator
Join Date: Apr 2007
Location: Austin, Tx
Posts: 154
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Re: Im bummed
DOn't feel bad if it runs good. I had a 305 (non-original) in my 69 swb for almost 2 years, it wasn't bad, just not quite as peppy as a 50 would be. it finally gave out mothers day weekend
 the number 7 rod decided he wasn't going to my mothers house with me, so it left me and took a piece of block casting with it as a hostage. FInd you a nice block and build it til your content, and swap them one weekend. enjoy the mpg!!
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- 1969 swb C/10 fleetside -LSx swap and Resto in progress LQ4/TH400/Ed Curtis cam/Pro Flo intake/Brian Tooley Goodies ..... a couple snails may be trying to crawl into my engine bay...  -1997 Z/28 - LT1/T-56 - Bolt ons, 9 inch, built trans/clutch and on the bottle |
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10-18-2008, 05:50 AM
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#19 |
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The LuvShack Garage
Join Date: Jan 2004
Location: Maple Grove, TN (West Side)
Posts: 30,468
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Re: Im bummed
I had a 67 SWB Big back window sold to me with a 327/Powerglide
combo only to find out the 327 had been pulled and it was a 283.
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Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Tow Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T |
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10-18-2008, 07:28 AM
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#20 |
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Special Order
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: Im bummed
Don`t you wonder what a 307 would run like with all the bells and whistles?Sure,not like a 400.But,you may be surprised.Really,when does anyone see a built-up 307?The trend has always been to go bigger,naturally.And,I like a big motor.But,with things changing I`d like to see how small a motor I can get enough power from and get best mileage.A new approach to performance that involves not necessarily going fast,just strong.But,pretty fast if you want.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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10-20-2008, 01:04 PM
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#21 | |
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upgrading to an older model
Join Date: Aug 2007
Location: Sacramento, KY
Posts: 346
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Re: Im bummed
Quote:
On the original issue...take the money you save on gas throw it in a jar, when it gets full then you have a decision to make...dump the slightly underpowered 305 that just saved you a jar full of money OR fulfill your testosterone enduced urge to go with the 350.
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68 stepside, short-box, multi-colored (for now) 
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10-18-2008, 08:04 AM
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#22 |
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Senior Member
Join Date: Sep 2004
Location: Terrell, TX
Posts: 1,967
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Re: Im bummed
I know the feeling. IMNSHO 305's make thge best boat anchors money can buy. I have had two of them and both tanked between 90k & 100k....both had lower knocking problems.
There's a reason you don't see too many 307's built up and it's the same reason there's not a lot of 305's out there. Sure there's a few and there's always going to be a few who swear by them, but for the most part they are hard to find. There's very little a 305 or 307 can do that a 327 or 350 can't do much better.
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Kelly '05 GMC Sierra SLE Z71 Bone stock except for new bed rail caps. |
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10-18-2008, 08:21 AM
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#23 |
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Registered User
Join Date: Apr 2007
Location: antreville, south carolina
Posts: 873
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Re: Im bummed
Hell im actually the opissite..I blew the 350 to peices and am swapping in a 327 turbofire
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"Dixie Destroyer" 71 C10 LWB Fleet Future Blown Prostreet Monster |
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10-18-2008, 02:55 PM
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#24 |
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Registered User
Join Date: Aug 2007
Location: West Hills, California
Posts: 679
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Re: Im bummed
my truck had a 305 in it when I got it. PO also cut open a heater box to replace a blown up heater core. I took 305 to work and gave it to a scrap man.
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10-19-2008, 04:05 PM
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#25 |
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Burnouts are therapeutic
Join Date: Jun 2007
Location: lancaster, south carolina
Posts: 852
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Re: Im bummed
this is why I never buy a truck or car without first running the numbers ,an old car with a 305 or 307 doesn't have the value of one with a 350 . 327 or 400 I went to look at a 71 longbed 2 weeks ago for a donor guy said it had a 350 ran the numbers and it was a 305 it was a good running truck , but try selling a truck for $15,000 with a 305 in it (thinking of my current project)
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1969 CHEVELLE SS 1972 C10 ALMOST DAILY DRIVER 1968 C10 RUSTBUCKET (MISSION IMPOSSIBLE) 1972 PONTIAC LEMANS CONVERTIBLE (WIFE'S CAR) "My wife and I were happy for twenty years. Then we met." - Rodney Dangerfield "The difference between genius and stupidity is that genius has its limits." - Einstein |
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