im putting a 383 in my nova and taking out the 307 but i dont want to trash it because me and my dad enjoy making engines....does anybody know if they sell stroker kits or bore kits for these...if so what are the combinations and where can i find them

I don't know what the combo was...but someone a few years ago built a motor for the engine masters challenge off the 307 block to make over 500HP.  If you search for Engine Masters challenge on the internet...or go to popularhotrodding.com, you might be able to find who did it.  

There's not much you can do with a 307ci which would make it superior to a 327, 350 or 383.  The small bore (3.875") will limit the use of adequate flowing heads, and the 3.25" stroke is the same as the 327ci.

You'd be much further ahead by building a 350ci, or stroking/boring one to a 383ci. 

there is a stroker kit. just google it. I dont remember who it was, but it had a whole bunch of kits for different engines. I think it was around a 334 ci like the 305 stroker kit. build it, who cares how effiecent it is, be different.  

I agree with Charlie, adding stroke to this engine makes even more similiar to a 305. It just taxes the already lacking induction. Increasing the stroke might add some low-end power but probably won't gurantee a significant increase in power near peak. If function is of some concern I wouldn't try too hard to be different.

                                                                                     ~Gibs

I had to pull out the mag to find the guy who built it...and then find the article on the web...but here ya go

http://www.kitcarmag.com/techarticles/engine_masters_challenge_307_chevy/

Thats how this guy squeezed out 556 HP out of the 307 block.  He used a 3.75" stroke...and bored it to 3.935"  That put him in at 365 cid.  This should give you ideas.

good luck

Great, If the original poster strokes the engine, adds an ultra-light rotating assembly with custom-made pistons with a trick ring pack, coat everything in sight, throw in a large solid cam with some big aftermarket ports, and a carb-shop modified 1000+ CFM carb he too could make 550+ Hp! The only setback is it would probably be about six to seven thousand dollars later...

Sorry that I'm a little crabby tonight but my point is that Beck's engine is an exception to the rule, starting with something more proven and of larger displacement should make things simpler.

                                                                                     ~Gibs

He already has a 383 in his car, this motor is just for fun. Dont discourage building up odd motors. He didnt say he was going for big power, just wanted to do something with this old one. There was another mag, I believe chevy hi, that built a 307 with basic sbc parts and got around 300 h.p, and it probably gets good milage also. I say build it, stroke it if you want, but it shouldn't be too hard to get 300 plus hp out of it. heck, I had pulled the old 307 out of my nova and sold it for 100 bucks. It ran, and I rodded it alot, but smoked and shot oil out of the pvc tube. Probably drove it about 600 miles before i pulled it, anyway, the guy I sold it to tore it apart and it had broken ring lands on two pistons, I think one piston had more broken off. they seem like they can be a strong motor if you wanna build it.

I'm sure if you wanted to build it a straight-six would be a good, strong motor as well..

So would you like to throw money into a straight-six for your hot rod, just to be different? Because you'd be really cool if you had a straight-six 3rd gen camaro or something, NOBODY has done that before. The more unique the better, right?

I guess if the original poster doesn't care about power, and doesn't mind putting money into places where it could be better utilized he can build a 307 and love it! But I'm done discussing it. Peace

                                                                                     ~Gibs

He asked about a 307.  You gave the same old stereo typical answers..."build a 350"  He didn't ask about a 350.  Since he already said he enjoys building engines...I would assume he knows that a 350 is the easiest/cheapest motor to build.  A 5 year old knows that a 350 is the easiest thing to build.

If you take the general idea behind the 307 in the article...and substitute in your own cheaper parts...you'll still end up around 400 HP...plenty for a street machine.  The fact that 550HP is attainable means that far less is also attainable.  You can ignore the coatings, ignore the superlight rotating assembly...but take a lot of other ideas from the build...like say...the bore and stroke...the exact thing asked for in this thread. 

Your crabbiness is excused...but you should really try to actually answer the question asked...then give your opinion on whether or not it is worth it.  I wouldn't build a 307...but then again...I don't plan to build a 350 or 383 either.  But I did try to answer the poster's original question.  If he wants my opinion he should ditch all his chevys and switch to Oldsmobiles...but he didn't ask that did he

Keep it a 307 and spend your money more wisley on con rods and bolts. New bolts for heads and main caps as well for these hold your engine together when your trying to push the loud pedal thru the floor. Another critical area to concentrate on is sealing up critical areas to keep compression where its supposed to be and intake air/fuel in their ports. Then you can buy nice rings and bore finish, bearings, cam and other fancy parts that will make the power on the good foundation you just built. If you want to stroke it then just get a 400 or if thats not enough a big block then. Why stroke before 502, just waisting money before that.  

Some of the guys run 307's in their circle track cars at my local track.  A decent 307 goes for a chunk of cash around here.  You could always sell it.

Buy A Boat, some chain and make that 307 useful....AS AN ANCHOR.!!!  

Find a compost heap, grab a mopar and throw it in. Works better than cow dung in most cases.

Be smart and creative at the same time.  Build a 350 or 383, then tell everyone it's a 307.  You'll be much further ahead.  Building a 307 just to do it, is kind of silly to me.  But, what do I know.

Edit: When I built the 350ci for my Chevelle, I was going to tell everyone it was a 283.  Then I realized the angle-plug heads would be a give away to a knowledgeable eye.