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03-02-2008, 10:16 PM | #1 |
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SBC 305 cam question
i am rebuilding a chevy 305 for the truck. Looking to put some life back into the motor and was wondering if this cam set up would help improve the motors performance. What do you guys think?....thanks rick
http://cgi.ebay.com/ebaymotors/Chevy...7757QQtcZphoto |
03-02-2008, 10:59 PM | #2 |
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Re: SBC 305 cam question
It sounds like a good deal. I have never done business with that seller. I am still a little worried about buying stuff off ebay but it does look like a good deal.
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03-03-2008, 10:47 AM | #3 |
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Re: SBC 305 cam question
I hear the rv cam is a nice upgrade for this motor.
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03-03-2008, 08:18 PM | #4 |
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Re: SBC 305 cam question
The problems with the 305 are lousy heads compounded by the small bore shrouding the valves. This limits the benefits that additional lift and duration will offer. That's certainly the most cam I would run in a 305.
I'm sure you've been told, but the best upgrade you can do during a 305 rebuild is to a 350 |
03-03-2008, 08:43 PM | #5 |
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Re: SBC 305 cam question
A GM goodwrench 350 is a great motor, for less than a quality rebuild. ( machine work + parts) If you are not doing a full rebuild, and stay with a 305, We have installed the 300hp 327 cam gm cam with real good success in a 305 on several occasions. My personal experience is that factory replacement cams from gm are the best all around street cams.
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03-03-2008, 09:03 PM | #6 | |
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Re: SBC 305 cam question
Quote:
The mild GM cams are good picks for mild street engines, but any mods (intake, heads, exhaust, etc.) and the aftermarket cams start showing real benefits IMHO. |
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03-03-2008, 10:57 PM | #7 |
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Re: SBC 305 cam question
Thanks`i would love to upgrade to a 350, but it's just not in the budget right now. check out the driver side head i pulled off. I assume this is an intake port...No wonder the motor was boggy!
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03-03-2008, 11:42 PM | #8 | |
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Re: SBC 305 cam question
Quote:
FYI, if you're having to grind the crank and machine the block, then the cost is almost identical to doing a 350. Last edited by Billla; 03-03-2008 at 11:43 PM. |
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03-04-2008, 05:50 AM | #9 |
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Re: SBC 305 cam question
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03-04-2008, 02:15 AM | #10 |
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Re: SBC 305 cam question
I think you guys have convinced me...I am going with the 350 crate from GM.....thanks
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03-04-2008, 03:04 AM | #11 |
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Re: SBC 305 cam question
Rick, I didn't mean the intake comment as a shot - my sincere apologies if it was taken that way.
I do think you're going the right direction - the 260 or 290HP GM crate engines are impossible to beat on price or quality for a daily driver engine. They also upgrade pretty well with some smart changes. Just be sure to make sure all the seals are wet with a little oil, prelube the heck out of it and add a pint of GM EOS before starting it. |
03-04-2008, 05:32 AM | #12 |
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Re: SBC 305 cam question
hey i rebuilt the 305 for my truck http://67-72chevytrucks.com/vboard/s...d.php?t=245056
i went witha stock cam but am thinking about pulling it out and putting an rv cam in it before puting it in the truck
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03-04-2008, 05:47 AM | #13 | |
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Re: SBC 305 cam question
Quote:
I still wouldn't bother doing a significant cam upgrade with all the issues with a 305... |
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03-04-2008, 09:03 AM | #14 |
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Re: SBC 305 cam question
Hey Bill not offended at all! I am gratefull for all of the feedback you give, especially to first timers lik me! Thanks for the input! I started calculating the cost to rebuild the 305 as you suggested and came to the conclusion that purchasing the 350 is the way to go...so I ordered it tonight from my local chevy dealer online. i purchased the 260/hp for $1400. i decided on this motor beause of the better low end torque...oh and the price! I'll post a pic when it comes in and maybe you guys can suggest an intake and a decent carb. thanks so much!....rick
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03-04-2008, 09:08 AM | #15 |
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Re: SBC 305 cam question
I bought an 83 half ton truck from a guy who replaced the 305 cam with a stock 350 cam. That truck felt like it had a 350 motor. If I ever own another 305, Ill swap it to a 350 cam...
Last edited by corn; 03-04-2008 at 09:08 AM. |
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