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Old 07-21-2013, 03:48 PM
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Thanks for the info. back in the day when we raced circle track out at tri city race way we would sometimes cut between the flanges to make separate bolting flanges. I going to try the ram horns for now. Iam on a budget and the exhaust is already done.

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Old 07-23-2013, 12:50 PM
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i have a 55 and i wanted about the same performance as you. i like the COMP 268H cam, good headers and performer intake. It works great with your 3.36 gears. You will like it just fine, in my opinion.
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Old 07-23-2013, 01:24 PM
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Thanks for the info sounds like that might be the one it's hard to choose the right cam
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Old 07-23-2013, 02:39 PM
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275/300/330 hp

CW, Because of your intended use and not wanting headers I would suggest you consider a blueprint version of GM's 327 cam for 275/300/330 hp. Low maintenance, tire frying low end. Here's a link;
http://www.cranecams.com/userfiles/P...inglePages.pdf
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Old 07-23-2013, 03:44 PM
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12-208-2 - DUAL Energy

link for the 265deh compcam. has a lope and is made for stock exhaust.
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Old 07-24-2013, 08:38 AM
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In 1961, I built a 287 CI SN Chevy engine with 11:1 forged pistons.The engine was a 1958 283 CI engine. I installed the engine in my in my '56 Chevrolet Del Ray 2-door sedan. I used the '57 Chevy rams-horn manifolds and a stock Carter 4-barrel carburator. It had a freshly rebuilt original 1956 3-speed O.D. transmuission and 4.11:1 gears. I used a GM "30-30" 1965 Coevette FI camshaft (GM-3849346) , GM edge-oriface solid lifters and Crane valve springs with 1958 Corvette FI double-hump heads.

The edgeoriface lifters are required with a solid lifter camshaft to prevent starvng the crankshaft of oil at high RPM. Melling JX-992 edge-oriface lifters may be still avaliable. The same cam was used in the 1968-69 Z28, 302 CI engines. Part number GM-3849346.
Some of the spec.: .485" lift w/1.5 rockers, 286/293 deg. adv. duration, 114 LSA.

I set the valve lash at .028" I-E but the motor seemed to run better at .032" lash after about 1000 miles. The 30-30 camshaft mean stick for a SB Chevy, especially with less than 327 CI. The 30-30 camshaft needs 4.11 or 4.56 cogs and spinning a 12 lb. aluminum flywheel. That is because the 30-30 cam makes all the power above 4,000 RPM. Those gears and camshaft is certainly not for freeway flyers.

"We don't need no stinking gas mileage"

Last edited by MouseFink; 07-24-2013 at 08:44 AM.
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Old 07-24-2013, 08:50 AM
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What about the earlier 097 Duntov camshaft? My old man had one in a 327; it wasn't as radical as the "30-30" and seemed to have a bit more low end than the "30-30". If you wanted the nostalgia of the solid lifter cam, I would ask about having a slightly more modern 'tight lash' cam ground. It shouldn't cost too much.

Nothing wrong with rams horns; but it would be time well spent to clean them up with a die grinder inside. Port (gasket match) them and your heads to the gasket you'll use
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Old 07-24-2013, 09:24 AM
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I have taken the die grinder to them and the heads as well gasket matched both intake and exhaust not to much work was needed but it will pay of in the the long run
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Old 07-24-2013, 12:07 PM
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In 1961, I built the 287 CI engine in my '56 Chevy. I first installed a Duntov 097 camshaft and regular solid lifters. When the GM "30-30" camshaft was introduced in 1965, I replaced the Duntov 067 camshaft with a 30-30 camshaft and used edge-oriface solid lifters. The 30-30 camshaft woke up that 287 CI engine since it had 11:1 compression ratio. I purchased the GM 11:1 forged pistons from the local Chevrolet dealership. They were +.030" OS for a 1961 Corvette, 315 HP / 283 CI Fuel Injection. As I recall, those pistons had two different part numbers; a p/n for the left side and a p/n for the right side because of offset and the dome.

Back in those days, in my home town, I had to buy most parts from the local Chevrolet dealership. It was a performance oriented dealership and the parts department countermen were very knowlegable and helped me get what I needed. That dealership received one of the 1969 COPO Camaros with a ZL1 427 aluminum engine. It was #6 of 69 COPO 427 CI Camaros built. It was sent to Fred Gibb Chevrolet in LaHarpe IL. Gibb Chevrolet shipped #6 to the dealership in my home town and it was sold to Jim Hall in Midland Texas. Hall removed the engine and put it in his Chevrolet Camaro race car for the 1970 Trans Am Series.
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