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Old 07-11-2012, 07:35 PM   #1
Allens86
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Some help with stroking my 305

Now I know what everyone is thinking, why mess with a 305 and just get a 350 but I like my 305 and it workes for what I use it for(daily driver). Ive heard of people stroking these out to a 335 and getting pretty good power out of them with still keeping the reliability of the 305. I was just curious in if anyone has done it or if anyone knows how I can go about doing this. Ive heard people say that putting a 400 crank with 350 rods is how to but I just want to confirm.

thank you.
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Old 07-11-2012, 08:13 PM   #2
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Re: Some help with stroking my 305

Ok I've done one of these. I didn't think it was worth it ALLENS86, but here you go. Get the stroker crank [400] then get some pistons from SRP because nobody sells them over the counter. You will have to releave the block just like the 383. You will also need the balancer for a 400 crank and the little balance plate that goes between the flex plate and crank. I would not use the 305 heads because they just don't breathe that good. Now you can make them breath if you hog them out. But to be honest with you just build a 383 you will be happier in the long run and it cost about the same. Thats my 2 cents
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Old 07-11-2012, 08:23 PM   #3
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Re: Some help with stroking my 305

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Ok I've done one of these. I didn't think it was worth it ALLENS86, but here you go. Get the stroker crank [400] then get some pistons from SRP because nobody sells them over the counter. You will have to releave the block just like the 383. You will also need the balancer for a 400 crank and the little balance plate that goes between the flex plate and crank. I would not use the 305 heads because they just don't breathe that good. Now you can make them breath if you hog them out. But to be honest with you just build a 383 you will be happier in the long run and it cost about the same. Thats my 2 cents
See thats what i was thinking when i started my thread, but i dont have 3 grand to drop down on a new motor and i cant seem to find a used 350 anywhere that some one wants to sell resonably priced bc they are so popular!
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Old 07-12-2012, 01:05 AM   #4
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Re: Some help with stroking my 305

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See thats what i was thinking when i started my thread, but i dont have 3 grand to drop down on a new motor and i cant seem to find a used 350 anywhere that some one wants to sell resonably priced bc they are so popular!
Yea Craigslist
is the way to go got a block and tranny $300
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Old 07-17-2012, 09:26 AM   #5
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Re: Some help with stroking my 305

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See thats what i was thinking when i started my thread, but i dont have 3 grand to drop down on a new motor and i cant seem to find a used 350 anywhere that some one wants to sell resonably priced bc they are so popular!
If you are looking for a 350 block, I can arrange that for you. I have a friend that lives in Mangum and works out here. 350's here are like buttholes, EVERYONE has one. I know he will be coming back there this coming weekend for 10 days. SO let me know.
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Old 07-17-2012, 10:36 AM   #6
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Re: Some help with stroking my 305

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See thats what i was thinking when i started my thread, but i dont have 3 grand to drop down on a new motor and i cant seem to find a used 350 anywhere that some one wants to sell reasonably priced bc they are so popular!
Thinking more on this.... I'm having a hard time imagining you could stroke a 305 for less than $3k. By the time you buy the crank kit, have the machine work done, and all the nickle and dime stuff like gaskets, hoses, spark plugs, etc... It's going to be at least $2500 I'd think.

Don't be afraid to look for a running car in your search for a 350... You can probably pickup a running Caprice or something for cheap. Swipe the motor and sell the rest or scrap it out. One of the reasons 350's are so popular in the hot rod crowd is that they came in everything and are still cheap and readily available. They're like belly buttons, everybody's got one!

Beware of the "Original 69 Camaro" motors though, there seem to be a disproportionate number of Camaro 350's in the wild!
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Old 07-17-2012, 06:50 PM   #7
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Re: Some help with stroking my 305

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Thinking more on this.... I'm having a hard time imagining you could stroke a 305 for less than $3k. By the time you buy the crank kit, have the machine work done, and all the nickle and dime stuff like gaskets, hoses, spark plugs, etc... It's going to be at least $2500 I'd think.

Don't be afraid to look for a running car in your search for a 350... You can probably pickup a running Caprice or something for cheap. Swipe the motor and sell the rest or scrap it out. One of the reasons 350's are so popular in the hot rod crowd is that they came in everything and are still cheap and readily available. They're like belly buttons, everybody's got one!

Beware of the "Original 69 Camaro" motors though, there seem to be a disproportionate number of Camaro 350's in the wild!
ok well i look around some more, just havent had the best of luck trying to find one! oh i have found quite of bit of 2 bolt mains tho
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Old 07-12-2012, 12:07 AM   #8
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Ok I've done one of these. I didn't think it was worth it ALLENS86, but here you go. Get the stroker crank [400] then get some pistons from SRP because nobody sells them over the counter. You will have to releave the block just like the 383. You will also need the balancer for a 400 crank and the little balance plate that goes between the flex plate and crank. I would not use the 305 heads because they just don't breathe that good. Now you can make them breath if you hog them out. But to be honest with you just build a 383 you will be happier in the long run and it cost about the same. Thats my 2 cents
We did a TPI 305 with a stroker crank in a Camaro once, it was about what you'd expect it to be.

Dollar for dollar, including the price of a used 350 core, it'll cost the same or less to stroke the 350. A stroker 305 sounds like a neat idea but the math doesn't make sense.

Now... that's not to say that for a few bucks and an afternoon you can't clean up your 305 heads and match the ports to the intake, bolt on some black jack headers, and a 214/224 Summit cam will give it a little kick in the pants. You'll be happier with a couple hundred spent on a 305 than a couple thousand spent on a 335.
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Old 07-12-2012, 12:47 AM   #9
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Re: Some help with stroking my 305

Thanks kalbert, yea I was thinking it sounded cool and different. I also am trying to keep my motor passing smog, do you think if I do it the way you were talking about it would pass?
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Old 07-12-2012, 04:50 AM   #10
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Re: Some help with stroking my 305

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Thanks kalbert, yea I was thinking it sounded cool and different. I also am trying to keep my motor passing smog, do you think if I do it the way you were talking about it would pass?
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If my old man can pass with a 427 with tri power and a lopey solid cam im sure you can too.

Just make sure the engine runs clean really if you pull in with a skeeter fogger then you can bet you will have issues lol.

Just stay away from 305s and "corvette 350's"
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Old 07-12-2012, 10:08 AM   #11
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Re: Some help with stroking my 305

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If my old man can pass with a 427 with tri power and a lopey solid cam im sure you can too.

Just make sure the engine runs clean really if you pull in with a skeeter fogger then you can bet you will have issues lol.

Just stay away from 305s and "corvette 350's"
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Yeh but was that a car that came with a tri power or did he add it?
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Old 07-12-2012, 11:49 PM   #12
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Re: Some help with stroking my 305

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Thanks kalbert, yea I was thinking it sounded cool and different. I also am trying to keep my motor pas6sing smog, do you think if I do it the way you were talking about it would pass?
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Ahhh... that's an area I know nothing about. I live in fantasy land where there is none of that smog stuff (yet). To the best of my knowledge, some of the mild speed parts used to come with CARB paperwork, don't know if that's still the case or not. I'd think if you stick to the CARB stuff, and get it tuned and running the best it can, there'd be no reason you wouldn't pass a sniffer. I've heard of guys pass tests for cars 20+ years newer just by having them fine tuned and running like a top. Don't know if it's true, but have heard stories!
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Old 07-16-2012, 01:20 PM   #13
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Re: Some help with stroking my 305

Hey Lou-

Whats up, brotha? Are you going to do another episode on that C10 that you dropped and made a short bed? I know alot of the guys on the site are interested. Eitherway, it's a great show. Thanks, man.


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Old 07-11-2012, 08:29 PM   #14
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Re: Some help with stroking my 305

Look on Craigslist they are everywhere here.
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Old 07-12-2012, 10:55 PM   #15
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Re: Some help with stroking my 305

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look on craigslist they are everywhere here.
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Old 07-11-2012, 08:33 PM   #16
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Re: Some help with stroking my 305

Thank you guys for the input. Luckin-fou what pistons did you get from SRP?
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Old 07-11-2012, 08:34 PM   #17
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Re: Some help with stroking my 305

regular 305 pistons?
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Old 07-12-2012, 03:20 AM   #18
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Re: Some help with stroking my 305

Well being in Cali too I feel your pain on the smog stuff, it does limit you. My understanding is, but no first hand experience, is that anything you do to increase the cubic inches won't fail your smog check, it's sorta stealthy that way. To take advantage of the extra cubes you might want to run a different intake and carb between the inspections that breath better.
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Old 07-12-2012, 08:35 AM   #19
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Re: Some help with stroking my 305

At the time the pistons were custom ordered from SRP. The wrist pins was moved up. I did this engine about 15 years ago I was screwing around.
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Old 07-12-2012, 01:25 PM   #20
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Re: Some help with stroking my 305

72 vette, never had 427s and tripower ended in 69 i think. So yah all custom plus sidepipes haha

Id you want something different why not take a 350 and throw in a bigger crank than the standard 400 crank?
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Old 07-12-2012, 01:30 PM   #21
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Re: Some help with stroking my 305

Lou, watch your show every week. Great to know you really are a hands on guy.
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Old 07-12-2012, 01:45 PM   #22
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Re: Some help with stroking my 305

I asked about the tripower thing because in Cali it would then fail the visual, doesn't matter if it runs cleaner than stock.
But yeh going bigger and looking stock can work if it blows clean. I had a lot of trouble getting my last carb vehicle smogged tho, if it wasn't FI it scared some of the smog guys around here, really weird.
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Old 07-12-2012, 01:52 PM   #23
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Re: Some help with stroking my 305

Well it passed visual cause the smog gurus couldnt tell a stock from modified v8 haha just a v8 to all them
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Old 07-12-2012, 03:11 PM   #24
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Re: Some help with stroking my 305

there are 335 kits available now, crank rods pistons etc, but like it has been said a 350 would be a better way to spend your money, check wrecking yards for a good core, make sure it is a guarantied core, then take it to a machine shop and get it vated, bored and freeze plugged
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Old 07-12-2012, 08:10 PM   #25
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Re: Some help with stroking my 305

Thanks buffle We were picked up for a second season I have no clue when we start shooting. Here is something I'm working on

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