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1.6 roller rockers on a 350. Question/ advice please



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Old 11-10-2011, 07:36 AM   #1
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1.6 roller rockers on a 350. Question/ advice please

I need some advice. I'm building a mild 350. The block is a '95 truck engine, 4 bolt, that is bored .040 over. I'm using a .435/.460 lift I/E, 212/222 duration cam, Edelbrock performer intake, and a Holley 650 with stock iron carbureted 350 heads, I believe they are 882's. I know the 1.6 roller rockers are more efficient and easier to adjust, but my question is will I see a significant power change with this setup? All the parts are ready to go except the rockers. Just wanted some input before I order them. Thanks.
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Old 11-10-2011, 07:42 AM   #2
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Re: 1.6 roller rockers on a 350. Question/ advice please

Sounds like a decent setup. Those rockers will give you a little more lift and make some extra power for you. Don't expect neck snapping power, but with the right gearing it will do you right.
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Old 11-10-2011, 07:50 AM   #3
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Thanks, that helps. I'm running 4.56 gears with 40's. The truck sees a lot of mud bogs and it would fall on its face on the top end. The change from 305 heads will definitely help, too I think.
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Old 12-12-2011, 07:13 PM   #4
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make sure your pistons have enough relief for the extra lift!
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Old 12-12-2011, 08:59 PM   #5
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They will help it breath a little better, but you're not going to have a seat o the pants difference.
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Old 12-13-2011, 07:06 AM   #6
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Re: 1.6 roller rockers on a 350. Question/ advice please

Should put you at the .464/.491 lift area by going from 1.5's to 1.6's. As said make sure your valves won't contact the pistons. I would also be sure you have screw in, or at least pinned studs.
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Old 12-19-2011, 05:35 AM   #7
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Thanks guys. All the replies have been helpful. But this engine might come apart again. If the guy isn't blowing smoke up my ***, I've got a line on a set of double hump 2.02's that have been ported and polished, fully dressed with screw ins and stamped 1.6's. I just hope he's legit and comes through.
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