Building a 283 for my 51 Chevy Truck and need some advise. Bored .60 over, turbo 350 with a 2000 stall, 3:73 gears. I think I'm going to be running the powerpack heads that were on it after I freshen them up (new spring and seals). Now the big problem is trying to figure out what cam to run. I'm leaning towards this and wanted to know what you guys thought...I was looking at this from an economy stand point and it looks like a great deal. I just dont want to build a non streetable engine. Any help would be much appreciated. <TABLE cellSpacing=0 cellPadding=0 width="100%" border=0><TBODY><TR><TD>Elgin, Hyd. Flat Tappet Complete Cam Kit, Chev SB, .465/.488</TD></TR><TR><TD cl***=plaintext>Chev SB Lift: .465/.488 Duration: 298/304 Duration @ .050": 224/234 Lobe Separation: 112 LC Moderate rough idle, Auto require higher stall, Street/strip </TD></TR></TBODY></TABLE>
looks like a lot of camshaft for a basicly stock 283 (292) and not much of a converter it'd be a lot tamer in a bigger engine....
Too much. How about..... COMP Cams K12-206-2 $285.95 Estimated Ship Date: Today Brand: COMP Cams Product Line: COMP Cams High Energy Cam and Lifter Kits Part Type: Camshaft and Lifter Kits Part Number: CCA-K12-206-2 Cam Style: Hydraulic flat tappet Basic Operating RPM Range: 1,200-5,200 Intake Duration at 050 inch Lift: 212 Exhaust Duration at 050 inch Lift: 212 Duration at 050 inch Lift: 212 int./212 exh. Advertised Intake Duration: 260 Advertised Exhaust Duration: 260 Advertised Duration: 260 int./260 exh. Intake Valve Lift with Factory Rocker Arm Ratio: 0.440 in. Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.440 in. Valve Lift with Factory Rocker Arm Ratio: 0.440 int./0.440 exh. lift Lobe Separation (degrees): 110 Intake Valve Lash: 0.000 in. Exhaust Valve Lash: 0.000 in. Grind Number: CS 260H-10 Computer Controlled Compatible: No Lifters Included: Yes Lifter Style: Hydraulic flat tappet Valve Springs Included: Yes Outside Diameter of Outer Spring (in): 1.230 in. Retainers Included: Yes Locks Included: Yes Valve Stem Seals Included: Yes Timing Chain and Gears Included: Yes Timing Chain Style: Double non-roller ***embly Lubricant Included: Yes Pushrods Included: No Rocker Arms Included: No Gaskets Included: No CARB EO Number: D-279-3, D-279-5, D-279-6 Quan***y: Sold as a kit. Notes: Operating rpm for marine applications is 1,800-4,900. For 1987 and earlier carbureted Chevy 262-400 Cam/Lifters/Valvetrain, Hydraulic Flat Tappet, Advertised Duration 260/260, Lift .440/.440, Chevy, Small Block
What about this one? <TABLE cellSpacing=1 cellPadding=3 width=630 border=0><TBODY><FORM action=http://www.compe***ionproducts.com/itemadd.asp?additem=E1166K method=post><TR><TD cl***=tdRow1Color vAlign=center align=middle></TD><TD cl***=tdRow1Color vAlign=top><TABLE cellSpacing=0 cellPadding=0 width="100%" border=0><TBODY><TR><TD>Elgin, Hyd. Flat Tappet Complete Cam Kit, Chev SB, .453/.480</TD></TR><TR><TD cl***=plaintext>Chev SB Lift: .453/.480 Duration: 282/294 Duration @ .050": 216/228 Lobe Separation: 112 LC Decent idle, Street/strip applications</TD></TR></TBODY></TABLE></TD></TR></FORM></TBODY></TABLE> The guy at the machine shop wanted me to go with a Lunati Voodoo #60102 262/268 219/227 @.50 468/489 112 seperation I thought this was too big also.
Thanks RootHawg..I think thats more in line. I dont want to go to big, I want it to sound good but be streetable and driveable.
go with the comp 260 degree as someone mentioned or Crane 266 degree with 440 lift--both will idle well in a small cubic inch engine and produce decent vacuum-any mor ecam than these and you will lose low end.
Isky 262 supercam 262/262, 208/208, 108 LSA. About the biggest duration I'd run in a 283, and the 108 LSA and resulting overlap should give a bit of teh sound you are after. Anything that sounds TOO wicked in a 283 won't be very streetable.
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