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October 26th, 2003, 01:03 PM
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Different Degree Heads?
What angle is being measured for the various heads and what makes certain designs better.
There was an engine builder with a SBC that was all about some serious business. He told me that he is using 18* heads that were cut to 16*. So please help me understand heads. In addition to the angle, it seems that larger volume intake ports are better - larger valves of course, how about the volume of the chamber. A thread about rod length in the tech section got me to thinking about some other aspects of engines that I have not yet grasped. Thanks,
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1986 Grand National - Original Owner. 40 Over, Forged Pistons and Crank, 218/212 .498 Hydraulic Roller with 885 Lifters, Harland Sharp Roller Rockers, Fully Ported Stock Heads with 1.77 Intake Valves, Double Roller Timing Set, junk Silver Seal HV Front Cover, Port Matched Intake and EGR Tower Milled to the floor, EGR Blocked, PCV Blocked, Breather in each Valve Cover. Turbonetics 60-1 Hi-Fi, FMIC, 50 pph, 3" Down Pipe, Ported Stock Elbow, 3500 Stall, ALKY Control, TT Chip. No Times on new Set-up. Body under Construction. On Turbo Buick dot Com since 1998. Started Posting as Steve6332 Glad to Participate.     
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October 28th, 2003, 12:45 PM
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Hummmmm?????????
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1986 Grand National - Original Owner. 40 Over, Forged Pistons and Crank, 218/212 .498 Hydraulic Roller with 885 Lifters, Harland Sharp Roller Rockers, Fully Ported Stock Heads with 1.77 Intake Valves, Double Roller Timing Set, junk Silver Seal HV Front Cover, Port Matched Intake and EGR Tower Milled to the floor, EGR Blocked, PCV Blocked, Breather in each Valve Cover. Turbonetics 60-1 Hi-Fi, FMIC, 50 pph, 3" Down Pipe, Ported Stock Elbow, 3500 Stall, ALKY Control, TT Chip. No Times on new Set-up. Body under Construction. On Turbo Buick dot Com since 1998. Started Posting as Steve6332 Glad to Participate.
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October 28th, 2003, 01:09 PM
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The angle is the angle of the valve in relation to the intake port...The straighter the better.
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Collin Hundley 87 GN - 6.85@99 1.47 60' 86 T-type Primered with bench seat OH YEAH!!!!! 11.70@116 with a sucky 60' But the car has gone 7.03@96 in the 1/8th with a 1.47 60' - Parted out
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