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Old 11-03-2002, 07:09 AM
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Post ideas on making more torque in a 350 SBC

What ideas have you guys got on making more torque production in a 350 SBC?? What are some good ways to do it??

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Old 11-03-2002, 02:46 PM
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too many variables! what do you intend to do with this engine? cam and heads are the biggest improvements you can do. engine is just an air pump the more you can get in the more you will get out.
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Old 11-03-2002, 03:39 PM
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Build a SBC 383
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Old 11-03-2002, 03:43 PM
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I have a 1980 350 SBC motor with flat top pistons, stock crank and connecting rods, stock heads with new hi-performance Z-28 springs and a new Comp. Cams 4x4 Xtreme Energy cam with a duration of 250/258 and a lift of .432/.453 and a duration @ 50 of 206/214. I also have an Edelbrock Performer Air-Gap manifold and an Edelbrock 600 cfm carb. I have an Accel Distributor and Accell HEI Super Coil with 8.8 plug wires and Accell Shorty plugs and 1-5/8 headers with 2-1/2 dual exhaust and Flowmaster 40 series mufflers with stainless steel tips. Any ideas on more torque or do you think this is a good setup for pulling/towing??
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Old 11-03-2002, 04:53 PM
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sounds like a good combination, with the right rear gear it should be a good tow setup.
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Old 11-04-2002, 07:35 AM
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Lightbulb

Here's an idea...get out your torch and cut the block into 8 pieces, each containing one cylinder.Now, throw 2 of them away and weld the remaining 6 side to side. Then you take the heads and cut of #1 and #2 combustion chambers. Put the two heads together, so all the intakes are on one side and exhausts on the other and weld those babies up. Now, this is the tricky part, you'll have to heat the crank shaft until it is red hot and stretch it. Be sure to stretch the non-essential journals so you don't upset the rod to crank tolerences. Once you have completed the rotating assembly, it is time for itake and exhaust.
First, that the headers and cut of #1 and #2 flange and runner, now they should bolt right up. The intake is a bit more tricky. You have to split the manifold right down the middle, and liek the heads and exhaust, cut of #1 and #2 ports. Now, go down to Napa or car quest and get two of those carb spacers and about 10 tubes of JB Weld. Bolt the carb spacers to the remaining carb bolt holes on each half of the intake. Now use the JB Weld and some old license plates or cookie sheets or whatever to seal up all the gaps. Voila....a dual quad intake. Now the only things left are cosmetics. i.e. oil pan, timing cover ect. Luckily modern sealers make this possible. This will give you more torque than your standard 350. Hope this helps.

P.S. If this sounds like two much work, you could always go buy a GMC 302, bore it .060 over and have a 348 cid motor with a block light enough for one man to pick up without much strain and more torque than a 350 would ever hope to have.
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