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#1 |
Registered User
Join Date: Jul 2009
Location: Calgary AB Canada
Posts: 67
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The horror!
was working on the new 68 4x4 trying to put power steering on. I did not know what engine I had in the truck. the truck looked fairly unmolested so I was hoping that the 327 was still in it. Now there was a casting number on the front of the block where the water pump mounts up but count not decipher them. now to make a non power steering truck have power steering. the alternator has to move from the drivers side to the pass, I had the required brackets to do this swap but i had to change my water pump from the short style to the long one so the belts would line up. Not a big deal as i just got this truck and did not know the history of the engine or water pump for that matter. Putting in a new pump was not hard to do. While the pump was off i thought it was a good idea to change out the timing set. Was a good idea, the chain had a ton of play in it and it had the plasticy gear set, yuck. The timing set went in fairly easy as well. Now here is where it all starts to snowball down hill. the front oil pan seal/timing cover seal had to be replaced. I consulted my Chilton manual and it states that to drop the oil pan and replace the gaskets you have to raise the engine 3 inches. Oh brother this easy job just got harder. i had an engine hoist in the corner of the shop so out it came and up i started to lift the engine. 1 and 1/2 inches the engine hits the firewall. crap! because I have a 4x4 the engine is set back it will not lift enough to get to the oil pan. SOO out comes the engine. I get the oil pan off and spend about an hour scraping off the old crusty gasket and I put on a slick one piece neoprene gasket it sure is not going to leak now! I also find a casting number on the rear of the block. So i get the trusty laptop out and get to deciphering. THE HORROR the 327 is no longer in the truck but a crappy 305 vintage 80- 84. horse power? 145! now i am not sure if that is the power rating with a 2 barrel carb or not. I now have a new 1406 edelbrock new cap rotor and coil, the engine has HEI ignition. I had to make up some MSD 8mm spark plug wires. So I hope i have upped the pony count a bit. I am now looking to put in a 350. I found a fuel injected 350 not sure what the vintage is yet. I guess the question would be how hard is it to switch to injected. I know I have to put a inline fuel pump. But will this engine match up to the bell housing of my tranny, and will my clutch linkage which now bolts to the side of my block, work with a newer 350?
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[B][/B ![]() James 68 GMC SHORT FLEET 4x4 83 Dodge short fleet 2x4 2000 Civic SI ![]() |
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#2 |
Registered User
Join Date: Dec 2007
Location: Santa Maria, Ca.
Posts: 1,423
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Re: The horror!
I think in 87 they changed the crankshaft bolt pattern so anything after that you need a different flywheel
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69 Chevy 4x4 383 Power ![]() |
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#3 |
Registered User
Join Date: Nov 2009
Location: Bloomington, IL
Posts: 34
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Re: The horror!
Yeah I feel for ya man. I just deciphered the codes on the engine in my newish '72 GMC and found out it's not the original engine either. Luckily it's still a 350, but for a while there I was sweating because the same year code I found was used on a 305 in a late 70's nova! If I found out it was a 305 I would've cried...
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-Tony Money is no object... once it's in your wife's hands. 1972 GMC Sierra 1977 Ford LTD II 2000 Pontiac Grand Prix (wife's ride) |
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#4 |
Registered User
Join Date: Jul 2009
Location: Calgary AB Canada
Posts: 67
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Re: The horror!
Ha! I feel you there! why someone would go through all the trouble to install a 305 when there are so many 350s out there. it sucks that i put all that work into the engine before i decifered the block casting.
so what year 350 did you find in yours Tony?
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[B][/B ![]() James 68 GMC SHORT FLEET 4x4 83 Dodge short fleet 2x4 2000 Civic SI ![]() |
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#5 | |
Registered User
Join Date: Nov 2009
Location: Bloomington, IL
Posts: 34
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Re: The horror!
Quote:
![]() I'm not holding my breath, though... lol
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-Tony Money is no object... once it's in your wife's hands. 1972 GMC Sierra 1977 Ford LTD II 2000 Pontiac Grand Prix (wife's ride) |
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#6 |
I really hate wet sanding!
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Location: Brookfield, MO
Posts: 601
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Re: The horror!
It could have been worse....could have been at 267 cube from the late 70's early 80's.
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Jeff, 68 C-10 75 C-20, now a C-10! 10 F-150 |
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#7 |
blood type; Retumbo
Join Date: Jan 2004
Location: next to my reloading bench
Posts: 10,269
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Re: The horror!
if the fuel injected 350 is a throttle body type you can still use a carb. there are intakes out there fro the same price as a normal one. just the 4 middle holes are at a slightly different angle.
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#8 |
Registered User
Join Date: Aug 2009
Location: Alden NY
Posts: 2,705
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Re: The horror!
I've got a 70 4X4 with PS and my alternator is in the stock location on the driver's side. Is the 68 different so that you would have to move it to the other side?
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#9 |
Registered User
Join Date: Aug 2008
Location: lacrosse wi.
Posts: 426
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Re: The horror!
when i bought my truck i was told it was a 350 and would run and the trasnny was good. ran the numbers it was a 305 from a 81 malibu. no compression. out it came seperated tranny from it and found a chunk gone from end of torque converter. so basicly i needed a different engine and a rebuild or different tranny. bought good rebuild 350 from builder in town here and got a th350 from craigs list. turns out he is ia member here. but the truck is relatively rust free. shorty step.
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#10 |
is Certifiable
Join Date: Feb 2008
Location: Hinesville, Georgia
Posts: 160
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Re: The horror!
The 305 is not good to find if you are expecting a 327 or a 350.....But finding out its a 307 is waaaaaaay worse than a 305 haha.
A buddy of mine bought a truck and had that happen. Owner giving him the "its a strong 350" story. The clown that went with him to look at it said "yeppers looks like a 350 to me". I went with him to pick it up, used my cell phone to run the number on the block. 3 0 7, i felt for him. But the bought the POS for $300, tuned it up, rattle canned the truck gray primer and sold it 2 months later for $1,000 haha. So he did ok on the deal ![]()
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1972 Chevy C10 LWB 350 Auto Blue with a white roof. |
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#11 |
Registered User
Join Date: Jul 2009
Location: Calgary AB Canada
Posts: 67
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Re: The horror!
Wow! I think this has happend way to often! I think too many ppl just look under the hood and say " Yup, its orange, I am selling you a Strong 350, I mean just look at that shade of Orange!" HAHAHA
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[B][/B ![]() James 68 GMC SHORT FLEET 4x4 83 Dodge short fleet 2x4 2000 Civic SI ![]() |
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#12 |
is Certifiable
Join Date: Feb 2008
Location: Hinesville, Georgia
Posts: 160
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Re: The horror!
Haha!
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1972 Chevy C10 LWB 350 Auto Blue with a white roof. |
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#13 | |
Registered User
Join Date: Jul 2009
Location: Calgary AB Canada
Posts: 67
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Re: The horror!
Quote:
ps, just a note,,,,, I love Mexicans haha
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[B][/B ![]() James 68 GMC SHORT FLEET 4x4 83 Dodge short fleet 2x4 2000 Civic SI ![]() |
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#14 |
vw guy & now c-10 guy
![]() Join Date: Sep 2008
Location: Louisville,KY
Posts: 483
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Re: The horror!
bought my '68 with a 250 6cyl. in it, which I actually wanted-- but later realised after looking at the SPID, that it was originally a V8 truck, and the 250 is from the mid 70's...
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#15 |
Registered User
Join Date: Oct 2008
Location: Brighton, TN
Posts: 1,267
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Re: The horror!
Im running a freshly built 307 in my truck. Well it was freshly rebuilt in one of my truck now its freshly rebuilt in another one of my trucks since i only manged to put about 50 miles on it in the other one before changin my mind to build a 4wd. I have yet to figure out why everyone gives the little motor such a bad rap. All you have to do is bore it a little put a decent set of heads on it and a decent cam and itll hold up to any 350 with a similiar cam and heads. Mine i know for a fact will roast first second and catch 3rd with ease. Or at least would in the 2wd it started out in. ANyway good luck with the build and alot of sprint car people run 305's with a 400 crank making them a 337 stroker. Just a thought.
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A computer once beat me at chess, but it was no match for me at kick boxing. Duct tape is like the force. It has a light side, a dark side, and it holds the world together. |
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#16 | |
Registered User
Join Date: Aug 2006
Location: HARRISON AR.
Posts: 309
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Re: The horror!
Quote:
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72 2wd lwb cheyenne super youngest son.green/white 72 2wd lwb cheyenne super oldest son.green/white 71 4wd 3/4 cheyenne super frame off manderin copper / white 4 inch lift. FINALLY DONE / SOLD 72 4WD SWB CHEYENNE BLUE/WHITE 388 AUTO REMEMBER THE COPS NEVER THINK ITS AS FUNNY AS YOU DO. NORWOOD SURVIVOR COPPERTONE BUILD THREAD/ http://www.67-72chevytrucks.com/vboa...d.php?t=259856 |
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#17 |
Registered User
Join Date: May 2005
Location: PA
Posts: 2,696
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Re: The horror!
307's are better than 305's. It's all about bore/stroke.
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#18 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: The horror!
power steering and the alt belong on the drivers side on these trucks. A/C goes on the passenger side as does the smog pump if ever equipped.
Personaly, I'd take a 307 over a 305. 305 engines are good donors for heads if on a real strict budget, as long as they don't need any work. A 5.0 would be better than either one though in my eyes. Small blocks just don't make me giggle anymore. |
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#19 | |
Registered User
Join Date: Dec 2006
Location: Porter Ranch, CA
Posts: 978
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Re: The horror!
Quote:
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#20 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: The horror!
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#21 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: The horror!
I 've got a 87 305 HO TPI engine in the 71 with well over 200,000 on it and it's got all the power I need.
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#22 |
chrome makes it go FASTER!
Join Date: Feb 2007
Location: Cleveland Tennessee
Posts: 2,884
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Re: The horror!
Same story here.
"It's got a 350" Said the seller. Well, numbers don't lie. Early 80's 305. But it's tuned right, gets almost 15 mpg on the highway and will pull a wicked burnout. So what the heck....
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She can't cook and she won't clean. But she looks good in a skirt and she brings me beer. She can stay for now. EDIT:: But she left me anyway, So forget her. 1962 GMC Stepside V6 4 speed My rolling resto thread http://67-72chevytrucks.com/vboard/s...d.php?t=324226 My old farm truck http://67-72chevytrucks.com/vboard/s...=1#post3465005 |
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#23 |
Registered User
Join Date: Nov 2009
Location: Bloomington, IL
Posts: 34
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Re: The horror!
I'd take a 305 over a 307 any day. 307's have a short stroke and you'll never be able to get any kind of low-end power out of them. You could build one for high end horsepower, but if you're going to do that, you might as well go after a 327 (same short stroke, larger bore).
I think the only reason they built the 307 was to use up all the 283 blocks and 327 cranks that they had laying around after building the 302.
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-Tony Money is no object... once it's in your wife's hands. 1972 GMC Sierra 1977 Ford LTD II 2000 Pontiac Grand Prix (wife's ride) |
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#24 | |
Registered User
Join Date: Jan 2008
Location: Tejas
Posts: 691
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Re: The horror!
Quote:
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'72 cheyenne super step, '05 long bed gmc |
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