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Will Someone Go Pick This Up Fer Me?

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#16 Amigatec OFFLINE  


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Posted July 10, 2013 - 08:26 AM

I do know the original sm block Chevy the 265 had a lot of problems back in 1955, it was mostly valve train related.
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Posted July 10, 2013 - 09:10 PM


Be careful. Those odemeters only went to 99,999 miles, so it could be 136,000 miles. Those were also easy to change. Good Luck, Rick

Yeah the odometer could be rolled over. I have been driving this era if trucks for 42 years and still own the first one. Also have a '72 we bought in '79. I ain't an expert but I have a gut feeling about how they deteriorate. I think this one would cost more than they are asking if they took a 136,000 mile truck and detailed it to look like a 36,000 mile truck. Looking at the interior wear, steering wheel cracks, amount of paint that came off the engine when steam cleaned, and other details leads me to believe it's authentic but if someone went thru all that work and money to make it look that good it's still may be a decent deal. I'm guessing that the buy it now price is very negotiable too.

The 307 will probably use less fuel than the 250 would.  I used to have a 307 in a '70 Malibu that I tortured and I couldn't make it get less than 16 mpg's.   307's were so much better than the 305's that replaced them. 
VERY NICE pickup!

I think the 307 got a bad rap early on mainly because of old purists that thought the 283 could never be matched and in some ways that's probably true. I agree that great milage could be gotten from them along with decent small v-8 power!

The 307 is a 283 bore and a 327 stroke. Basically a 327 crank in a 283 block. That is why it runs so good the shorter stroke makes it accelerate faster than a 305.

A 305 is a 350 with a smaller bore.

Yeah, its been since the late 70's and early 80's we raced a class at our local dirt track that had a 301cubic inch limit. The preferred block was the 307 using a '68 or 69 283 crank as they were large journal. If I remember correctly the 307 block was 10 or 12 pounds lighter than the 283, and held up great. I think at .060 over it came out about 292 cu. in. Don't quote my faded memory on that one tho---LOL!

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#18 Gtractor OFFLINE  


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Posted July 10, 2013 - 09:42 PM

The 307 came out way before ny smog motor, they were built from 1968 to 1973. They were built to replace the 283.

Churchill Truck Lines bought a brand new red '68 pickup for the shop to use at the main headquarters here in Chillicothe, MO.  It was set up for California emissions with a full-on belt driven smog pump.  It had a 307 and got 6 to 8 MPG's, didn't have any power, and absolutely drank oil from new.  After about 20,000 miles the smog pump locked up so it was removed and all lines plugged. The truck ran much better and got just shy of 20 MPG and oil consumption stopped that day.   My dad put a ton of miles on that truck chasing and repairing broken down semi's. 

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