Here's a very interesting note displayed in a lovely shadowed box.
secure link on this site
Stain Weiss' Cylinder Head Flow Data mirrored here
offsite - not SSL secure
Horsepower-Calculator www.gofastmath.com
Horsepower-Calculator www.gofastmath.com
https://spicerparts.com/calculators/engine-displacement-calculator
Rod Ratio Calculator - DSS Racing
Compression Height Calc - Motor Trend Article - viewed Dec 23
So assume you have a block with a 9.00-inch deck height, 6.000-inch connecting rods, and a stroke of 3.75 inches. First, divide the stroke by two and add that to the rod length: 3.75 / 2 = 1.875, and 1.875 + 6.00 = 7.875. Next, subtract that answer from the deck height: 9.00 7.875 = 1.125. So the answer is that the piston compression height should be 1.125 inches.
Static-And-Dynamic-Compression-Ratio-Calculator www.gofastmath.com
Camshaft-Valve-Timing-Degrees-Calculator www.gofastmath.com
STATIC Compression Ratio - DSS Racing
Lunati Compression height = block height - rod length - (0.5 X stroke)
Compression Height Calc - UEM Pistons
Compression Height Calc - Wallace Racing
A post I ran into from the early 2000s. I believe on an off-road related forum. |
|---|
All of that information is available on the Summit web site if you want it. The stock cast iron Ford 302 stock block weighs 160 pounds. DRT-31344175 Dart Engine Block Weight (lbs): 97. Weight savings 63 pounds. Cast iron heads ea. 50.0 lbs 289/302 - complete including rockers Aluminum heads ea. 35.0 lbs. Weight savings 30 pounds. Dart Small Block Ford Aluminum Race Blocks: DRT-31344175 ...$4,933.95 Dart Pro Aluminum Heads............................................. ..... $1,286.95 That's $66.89 per pound of weight reduction................... "The following numbers are for ""typical"" engines. The dimensions include such things as air cleaners, oil filters, water pump fan, etc., but not bellhousings." Engine Width Length Height Weight 289-302W. 24.0 29.0 27.5 460 -93 pounds=367 pounds.(DART) 302 Boss.. 24.5 29.0 28.5 500 -93 pounds=407 pounds.(DART) LS1 350.... 24.8 27.2 25.0 497 -misc. parts=388 pounds. Rover 300. 22.0 25.0 26.0 338 -Misc. parts=290 pounds. So, it looks like the Ford aluminum Dart engine is lighter than the stripped LS1 by 21 pounds, but not NEAR as light as the stripped Rover, which we already knew. The Dart is also more expensive, which we already knew. The conclusion from this information is that the $1500.00 Rover, being 98 pounds lighter than the stripped LS1, is worth $6555.22 more than the LS1, based soley on the cost of weight reduction with the Ford Dart engine. LOL That's a JOKE!! |