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Old 01-03-2003, 07:31 PM
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Post 307 chevy bolt on?

Would a 307 2 bolt main fit up to a 66 chevy 4 spd manual that now has a 350 in her?

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Old 01-03-2003, 07:54 PM
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Yes, but why?
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Old 01-03-2003, 08:12 PM
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YES IT WILL BUT AS FAR AS HP AND TORQUE YOU WOULD THINK YOU PUT A 6CYL IN !
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Old 01-04-2003, 01:55 AM
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I have to sell the truck, and the 350 chevy has a nasty knock in her.
I could let it go as Is, but would take a real loss on her. the 350 Is a high performer and I would like to keep it and rebuild it for somthing else. Regardless the the 307 will get sombody by until they could aford to build it the way they want to. So that's what I'm thinking.
What chevy's had a 307 in them? AND WILL I NEED TO BE DOING ANY MODS TO MAKE IT WORK?

THANKS GUYS
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Old 01-04-2003, 02:21 AM
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307's were used in everything from station wagons to Chevelles, Novas etc, Both your knocking 350 and the 307 are internally balanced and the 307 will bolt up and work. You must obviously change out the flywheel if your truck has a manual tranny. Also see if the 307 has accessory holes in the cylinder heads for alternator mounting brackets and if the water pump is a short or long version. should be an easy swap. By the way, those late 60's / early 70's 307's were a good engine, they run circles around the later 305's.
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Old 01-04-2003, 07:17 PM
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Hey, Heathster, you could just rebuild the 350 using the 307 crank and some 327 pistons. Now, you have a large journal 327!! keep the truck!!
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Old 01-04-2003, 07:38 PM
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If your going to install the 307, Make sure you install a Pilot Bushing in the rear of the crank, it`ll make a very annoying ticking if it`s not present. a friend has a 66 chevy he installed a 350 in and left the original tranny, no pilot bushing so it ticks like crazy. I also agree with stude, I like 307`s, i use there cranks to create 327`s in 350 blocks and I also just use them as is. far better than a 305.
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Old 01-10-2003, 11:37 AM
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Cool

Hey, guy's thanks for the good info.
I would keep the truck if I could afford to a a couple of toys but I just put some money down on a 65 3/4 4X4 that's in great shape for around the same that I sould be able to sell Betsy for. thanks, D.V. I will take your advice about the pilot bushings, I think that's what happen with the 350 it had that anoying tick. And Stude, I feel more confident about the 307 now, and I'm swapping her as we speek, Odd, I wish I had the time to swith the cranks etc. It's sounds like a rad combo, what would be the advantges of having a long jornal 327?, and here's another question for ya, would the RV cam out of my 350 work for the 307, and if I put the Edd. performer and 650 holly on her would it be too much? I do have flow master 2 1/2's on it now.
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