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Old 04-07-2003, 03:21 PM
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Post rods,rockers and studs

I'm back with a whole new list of questions As I have mentioned before I'm building a 383 stroker that will go in my 69 Camaro. It is healthy but not wild. I bought Dart heads and with the heads I got guides and studs. The studs are 7/16 and it seems my only choice is a very expensive set of roller rockers. Would I be better off buying a set of 3/8 studs and just using stamped rockers? I know for a racing engine the answer would be to use the rollers......but I'm never going to turn 6000 with this engine. Also the guides are raised. Is there a reason to use raised instead of flat guides? And lastly, 5/16 push rods or 3/8??????Pros and cons. Once again, Thank you Kevin

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Old 04-07-2003, 06:34 PM
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you bought way more heads than you need if you are not going to turn the motor, you can use the 3/8 studs and stamped rockers, and you can use the flat guide plates, the raised plates give a bit more stability at high rpm and heavy spring load, also go for the 5/16 pushrods in your case, you don't need the extra weight of the larger pu-rods.
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Old 04-07-2003, 06:45 PM
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Bob's right. With those heads you're gonna have to make some R's before you make anywhere's close to peak horsepower. Don't Dart heads have 220 cc runners? I'd stay with the 7/16" studs and go with atleast a set of Crane Energizer rockers. They'll run around $180

As far as the push rods go, good quality hardened 5/16 push rods will be plenty good enough.

Raised guides help support big valves under high lift conditions.

[ April 07, 2003: Message edited by: PrimeMover ]</p>
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Old 04-07-2003, 08:50 PM
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Id go with roller rockers. Harland Sharps are good rockers and I think they have a life time warranty. Mine cost me 180.00 and id say there worth it. they are very well built. just my .02 good luck
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Old 04-08-2003, 05:08 AM
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These Dart heads have 180 cc intake runners. They were recomended by my machinist as being bullet proof. I got a real good deal on them, cheaper than I could have had a set rebuilt. Thanx for the input, Kevin
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Old 04-09-2003, 05:29 PM
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Kev, a buck eighty ain't so far out of line after all.. I think with your combo, you'll be grabing for second at around 5600. Let us know - will ya?
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