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  #31 (permalink)  
Old 11-04-2012, 09:57 AM
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Thanks you answered it perfectly in the first couple sentences

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  #32 (permalink)  
Old 11-04-2012, 01:43 PM
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Glad you liked it.I thought you would.............


Thing is I really don't care for a guy asking for advise and then being told what to say.


Soooo,I done with this.
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Old 11-04-2012, 05:22 PM
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I didnt mean anything bad by that. I was sayin that you answered my question and I thank you for that.
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Old 11-04-2012, 05:38 PM
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Quote:
Originally Posted by allansmith859 View Post
I have a sbc 350 I plan on building for street/strip project. I am taking it to my machine shop to get it re done. (.030) I plan on using STOCK GM PARTS for my rotating assembly. (crank, rods, bearings, pistons, ect). How much HP/TQ can these parts withstand so I know what my options are when i get my top end?? (cam, heads, intake, carb, exhaust). I will use ARP bolts.
You can't put stock pistons in a .030" over block... And if you're taking the crank you then you better not put the bearings back in.

As or what the crank and rods can handle (the only parts you'll be reusing) if they are properly machined and assembled then you should have no problems going up to 6,000 rpm. With that as your max RPM you'll want your peak a little before that, with good 195-210cc aftermarket heads you can get around 450hp out of a 350 if everything is built right- no shortcuts though.
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Old 11-04-2012, 05:54 PM
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I would be buying a new rotating assembly for this. But everything would be stock replacement parts except if I have to go .030 over then I will have to get bigger pistons. Jegs sell a scat rotating assembly thats around 500 to 600 dollars and thats probably the route ill go. Just trying to build a good strong engine. Its not a race engine. I guess I dont even need to put the max HP that these parts would handle but 450 does sound very good to me. That would be perfect. I appreciate everyones advise even if it seems like I dont. I have tore down alot of sbc by myself and learned how to do it by myself with none to teach me anything. But those were just stock rebuild using the same parts i took off. Just putting on new bearings and gaskets. I am still young and I am trying to get to where you all are when it comes to building a good performance engine. I really am not trying to be a pain in the ***.

Thank you guys for your input
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Old 11-04-2012, 06:55 PM
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I didnt mean anything bad by that. I was sayin that you answered my question and I thank you for that.
Thanks for that.I would back the rpm to 5,500 and the intake to 180cc to keep the viscosity up for better low end response.
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Old 11-04-2012, 08:13 PM
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Back to the OP original ask, I cant possibly be part of the current scientific equation currently being beat to death.

Put a 150HP NOS shot on a 68 307 once. so thats 180HP + 150HP = too much HP. Ran it once with a full bottle and a bush leage fuel supply to the solenoids to most likely 7000+RPM at which time it blew itself through the hood of the 68 belair,,,my mom was pissed right off,,,she liked that car.
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Old 11-04-2012, 08:36 PM
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Back to the OP original ask, I cant possibly be part of the current scientific equation currently being beat to death.

Put a 150HP NOS shot on a 68 307 once. so thats 180HP + 150HP = too much HP. Ran it once with a full bottle and a bush leage fuel supply to the solenoids to most likely 7000+RPM at which time it blew itself through the hood of the 68 belair,,,my mom was pissed right off,,,she liked that car.
That's funny.LOL
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  #39 (permalink)  
Old 11-08-2012, 02:35 PM
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hi you are correct they are making it harder than it is if your 350 is from a late 90's truck and you just want to put a turbo or super charger or nos about 400hp should be ok but keep in mind as some one said the rpm's could kill keep your self under 5k rpm great but max it out 6k you will blow the stock motor fast i made a twin turbo kit on a 85 camaro 350 fully stock got 523 hp used it for almost 4 years and sold it still running but i never let it go over 5,250 rpm i hope this helps you
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