I just blew up my tired old 283 that i have in a 1947 chev coupe. I have some other 327, 283's and a 307 laying around. I decidedto go with a 307 this time. I thought about punching er out to about 60 over, throwing a set of power packs on er, a bigger cam and an old 4bbl intake and carb off a 62 chev OR my Edelbrock 3x2. Anyone else have any suggestions?
the 307 is a dog. From what I understand it is a 283 with a longer stroke. They don't really like to rev. there is a lot of info on google if you type in 307 chevy. IMHO put in a 327, you'll thank me.
Thanks for the input. I just figured that the reason 307's are considered Dogs are because it only ever came with a 2bbl and usually single exhaust. thought it might be fun to see what hp could get out of it... Besides the 327 is missing a crank and heads.
the 307 will run great, just build it right. http://www.jalopyjournal.com/forum/showthread.php?t=45615&highlight=perfume+pig
i have a tired one in my gmc and itll boil the tires till you stop trying, no prob. i also have one that im putting power packs on and stickin in my 58 chev. they are just a large journal, 283 stroker
true, I should have been clearer in my post. stock 307 are dogs. and if you are going to build a sbc you might as well go with a larger engine as it won't cost more. But if you have the engine. run it.
Here's a short summary of the other 307 thread: 307's are a stroked 283. They came with cams that wore out quickly. Choose a good cam, intake and 4 bbl carb, and you're in business. Read the other thread for the details, but that's basically the gist that i got out of it.
the 307 will work yes. but that is a dog motor. use the 327 or another 283, you'll be happier. Or I used a rebuilt 305 out of a Camaro with an RV cam, a quadra-puke carb, a cast iron intake, block hugger headers, stock ignition, dialed in by Groucho's Performance (who does great work btw) and a set of 18" Cherry Bomb mufflers and loved how it sounded and ran good and strong in a '28 RPU. I'll use that combo again.
i never had a problem winding my 307 up to 5k or more easy. most everyone considers them dogs, but they are good engines in my book. no way you'll tell me a 305 is a better choice either. not ever a "performance" engine they can be built with just bolt-ons and a cam to run damn strong and reiliable. you'd be amazed how much a 4-barrel and headers wakes one up. condition is a huge factor as it is with any engine. hard to imagine one would still have the timing gears with the nylon teeth still in it, but maybe. if it does there's the first reason why most think they are dogs. Dave
Yeah, the nylon timing gear is a joke, put in a double roller timing set. I love the 307 in my '38 Ford pickup. The price was right (brother in law gave it to me for free, came out of a '68 GMC pickup that only had about 30,000 mile on it and was rusted all to pieces. Using an Edelbrock Performer intake, 600 cfm Holley, 262/305 heads. It's got as much power as I want, moves my truck along just fine and gets decent gas mileage for what it is.
The 307 is a stroked 283. Sharing the 3.875" Bore with the 283, and 3.25" Stroke with the 327. They were made from 68-73 and the early versions made around 200hp stock, and the emissions versions made around 115hp stock. They made marine versions pushing the 245hp mark for OMC, but never had a performance version of the 307. Dogs? ********. Read the articles below and it'll change your mind about the 307. I've got a hot little 307, thats about to get hotter. Sure it's not a power monster, but it's perfect for a daily driver, weekend bruiser, street car, and capable of more than enough power in a small hot rod. Super Chevy builds "Danger Mouse" 307ci http://www.superchevy.com/technical...sucp_0604_chevy_engine_performance/index.html John Beck builds 556hp 307ci for the Engine Masters Challenge. http://www.popularhotrodding.com/tech/0207phr_307_chevy_block_build/index.html
That 307 has no idea it's a dog *** 307 once you pull those junk heads off and that junk cam out. It's just a small bore 327. Next problem is you may have a hard time finding a good set of .060 over pistons for it. It will run fine, I had one in a dirt car that would haul ***. It had a set of Bowtie heads, roller cam, and a custom set of pistons. Kevin Ooltewah Speed Shop
A 283 or 327 alone will always have a "coolness" factor with the bad rep of the 307. Think about that. Did you ever hear any cool stories of bangin' gears with a 307? Nope.
I knew a guy who had a 307 in a nova and it had stock heads, aftermarket cam, 4barrel carb, edelbrock intake, etc. cheap bolt on stuff and it sounded awesome and seemed to get up and go pretty good. I dont think these motors are dogs at all. Build one if you want.
<---------- See that Read Fat Hacks thread and type 307 into the search function. I picked one up a few years ago by mistake for $75. It was supposed to be a 283... well... it is.... it's a 283 Stroker. Amen... I've been gathering pieces for mine to see what it'll do on the dyno before it goes into the car. I've acquired some World torquer heads and most of the stuff in the thread Fat Hack started and never finished. I'll be building it fairly close to the direction he was going. If he won't finish the thread... one of us will have to. The "goal" is for 300hp+ for less than a $1K... and that includes a lot of brand new parts. What are you cooking up for yours? You know who's post kept me from writing it off completely and hauling it off to the s****yard? It was Littleman http://www.jalopyjournal.com/forum/showthread.php?t=204736
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