How to get more horsepower from a 1971 Monte's small block 350 - Monte Carlo Forum - Monte Carlo Enthusiast Forums


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Old 10-05-2009, 12:50 AM
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Default How to get more horsepower from a 1971 Monte's small block 350

Hey everyone, I have a 1971 Chevy Monte Carlo with a small block 350 that I bought about 6 years ago. I always had the idea of dropping a larger engine in it when I got older. Recently when talking to my mechanic, he mentioned that I would be better off to just bore out the motor I have. Any advice or previous experience with this project??
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Old 10-05-2009, 01:22 AM
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if your going to pay to have the motor built i would say it would be more cost effective to get a crate motor for it.
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Old 10-05-2009, 01:24 AM
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You could bore it out to make it larger essentially... Or drop a larger motor in there. Tons of things can be done with 350's. Just a few decent gaining mods off the top of my head - big aftermarket cam, this is just an example - 750 carburator, different heads. If you want to throw some nitrous on it, go for it. Don't rule out boost either.
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Old 10-05-2009, 01:47 AM
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the bottle is for babys imo. (nitrous) i had a small block 350, done right, and she put away a 66 corvette with a 427 in her. the 350 i had was bored .060 over, a nice cam, quadra jet, headers and 2 1/2 exust, eldalbrook manifold and heads. there was a bunch more done to her but it was awhile ago ill have to ask my father and post again all he did to her. but i would stick with the 350 couse there is power to get out of em while saving the weight of say a 454.
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Old 10-05-2009, 02:39 AM
 
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If I was going to do it on a budget, assuming the motor ran fine.

Options:
1. Start with headers, small block headers will fit most small blocks
---a. upgrade cam
---b. upgrade intake
---c. shift kit for tranny
2. buy a crate motor
---a. install said crate motor

Crate engine places.

http://www.cmengines.com/Engines/Per...3/Default.aspx
http://www.crateenginedepot.com/stor...ngines-C2.aspx
http://www.edelbrock.com/automotive_..._rpm_410.shtml

you can buy a crate motor for a decent price and would cost little to nothing to have installed, I would still suggest the headers first, you will want them after wards.
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Old 10-05-2009, 09:00 AM
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I would keep the 350, and do some of the mods mentioned above. There is SO much aftermarket support for the GM 350.
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Old 10-05-2009, 09:14 AM
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heyy! welcome to the forum!
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Old 10-05-2009, 10:11 AM
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yha, you should try to stick with the 350, even more so if its got the 4 bolt main whatever the heck they are called, lol. TONS of aftermarket stuff avalible for 'em, for any budget. go to a few swap meets for the real bargens. try to find a set of "fulie heads", get a good cam, headers, a good intake / carb combo..... they are SO simple to build, & can make a ton of power
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Old 10-05-2009, 10:35 AM
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heads,intake,carb,cam,headers,some freeflow exhaust, carb spacer gf's dad had a 350 punched to a 355 with a set of dart head edlebrock intake luniti(idk if thats how u spell it) i donno the specs of
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Old 10-05-2009, 10:40 AM
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cam but it wasn't crazy, 750 carb with a supersucker carb spacer.. at the dyno 415 hp at the flywheel...never had it on a chassis dyno so i don't have the whp
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